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2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Wheel and Axle [Answer]
machine that consists of two circular objects of different sizes, the wheel is the largest of the other two circular objects
[]
Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
47/1438042986444.39_20150728002306-00227-ip-10-236-191-2_753168020_3.json
2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Inclined Plane [Answer]
machine that is a straight, slanted surface, which facilitates the raising of loads; ex. a ramp
[]
Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
47/1438042986444.39_20150728002306-00227-ip-10-236-191-2_753168020_3.json
2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Wedge [Answer]
a machine made up of two inclined planes and that moves; often used for cutting
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Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
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2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Screw [Answer]
a machine that consists of an inclined plane wrapped around a cylinder
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Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
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2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Compound Machine [Answer]
a machine made of more than one simple machine
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Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
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2a492ec9_rds_about_Chapter_8_Vocabulary__Answer
[Question] Work Output [Answer]
the work done by a machine; the product of the output force and the distance through which the force is exerted
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Flashcards about Chapter 8 Vocabulary
Answer
http://www.studystack.com/flashcard-374040
47/1438042986444.39_20150728002306-00227-ip-10-236-191-2_753168020_3.json
38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] "I always listen to the heart in a number of places on the chest." [Question]
Before you begin auscultating heart sounds, inform the patient:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] lateral to the extensor tendon of the great toe. [Question]
To assess the dorsalis pedis artery, you would palpate:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Aortic area - pulmonic area - Erb's point - tricuspid area - mitral area [Question]
In performing auscultation of heart sounds, which sequence would you use?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] lymphedema [Question]
During an assessment, the nurse notes that a patient's left arm is swollen from the shoulder down to the fingers, with nonpitting edema. The right arm is normal. The patient had a mastectomy one year ago. The nurse suspects which problem:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Modified Allen's test [Question]
Prior to drawing blood for an arterial blood gas (ABG), the lab tech will perform which assessment?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] No further response is needed, as this is normal. [Question]
While counting the apical pulse on a young adult patient, you notice an irregular rhythm. His rate speeds up on inspiration and slows on expiration. What would be your response?
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] left atrioventricular valve. [Question]
Select the best description of the mitral valve:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Raynaud's syndrome. [Question]
During assessment, your patient tells you that her fingers often change color when she goes outside in cold. She details these episodes as her fingers first turning white, then blue, then red w/burning, throbbing pain. U suspect that she's experiencing?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Enlarged and tender inguinal nodes [Question]
A 35-year-old male is seen in the clinic for an "infected cut on my left thigh." Which of the following would you expect to find during your assessment of this patient?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] proceed with the exam. It is often impossible to palpate this pulse. [Question]
During the examination of the lower extremities, you are unable to palpate the popliteal pulse. You should:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] a murmur that is palpable. [Question]
In cardiovascular assessment a "thrill" is:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] pericardium [Question]
The tough, fibrous, double-walled sac that surrounds and protects the heart is:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] second left intercostal space [Question]
The examiner wishes to listen in the pulmonic valve area. To do this, the stethoscope would be placed at the:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Intraluminal valves ensure unidirectional flow toward the heart. [Question]
Which of the following statements best describes the mechanism(s) by which venous blood returns to the heart? Question 14 answers
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Its location may be indicative of heart size. [Question]
Which of the following statements is true regarding the apical impulse?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] second right intercostal space [Question]
The nurse wishes to listen in the aortic valve area. To do this, the stethoscope would be placed at the:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] blood flow turbulence. [Question]
In your assessment of a 68-year-old male with recent onset of right-sided weakness, you hear a blowing, swishing sound with the bell of the stethoscope over the left carotid artery. This woud indicate:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] the atria contract toward the end of diastole and push the remaining blood into the ventricles [Question]
Which of the following best describes what is meant by atrial kick:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] the aorta [Question]
The most common site for an aneurysm to form is:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] myocardium [Question]
The muscular wall of the heart is called the:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] aortic, pulmonic [Question]
When listening to heart sounds, the nurse knows that the valve closures that can be heard best at the base of the heart are:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] SA node - AV node - bundle of His - bundle branches [Question]
The electrical stimulus of the cardiac cycle follows which sequence:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] heart failure. [Question]
The findings from your assessment of a 70-year-old male with pitting edema in both ankles include jugular vein distention when the head of the bed is elevated 45 degrees. This would indicate:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] sinatrial (SA) node [Question]
The component of the conduction system referred to as the pacemaker of the heart is the:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] posterior tibial [Question]
The nurse would palpate around the medial malleolus to assess which pulse:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Right atrium - right ventricle - pulmonary artery - lungs - pulmonary vein - left atrium - left ventricle [Question]
The direction of blood flow through the heart is best described by which of the following?
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] a brownish discoloration to the skin of the lower leg [Question]
A patient has been diagnosed with venous stasis. Which of the following would the nurse most likely observe:
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Flashcards about Exam IV studyguide
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] S1 coincides w/carotid artery pulse [Question]
When listening to heart sounds, the nurse knows that which of the following statements concerning S1 is true:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] the area on the anterior chest overlying the heart and great vessels [Question]
The precordium is:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] claudication [Question]
67 yr old patient states that he recently began to develop cramp-like pain in calves when climbing 10 stairs to apartment. This pain is relieved by sitting for a few minutes; then he's able to resume activities. This patient is most likely experiencing:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] decreased cardiac output. [Question]
In an adult, a sustained elevated heart rate of greater than 120 beats per minute can lead to:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] cardiac output is decreased. [Question]
A patient's capillary refill in the fingertips is found to be greater than 3 seconds. The student nurse understands this to mean:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] is indicative of possible deep vein thrombosis. [Question]
A patient has a positive Homan's sign. You know that a positive Homan's sign:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] distant [Question]
The RN is auscultating the heart sounds of a patient with severe chronic obstructive pulmonary disease (COPD). The heart sounds seem "far away." This should be documented as:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] the endocardium [Question]
The thin layer of tissue that lines the inner surface of the heart chambers and valves is called:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Nocturia [Question]
A 75-year-old male is here for "a routine physical." During the history the patient states he's been having difficulty in sleeping. "I have to get up several times a night to urinate." You should document this as:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] "Because the deeper veins in your leg are in good condition, this vein can be removed without harming your circulation." [Question]
A 70-year-old patient is scheduled for open-heart surgery. The physician plans to use the great saphenous vein for the coronary bypass grafts. The patient asks, "What happens to my circulation when the veins are removed?" The nurse should reply:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] listen with the bell of the stethoscope to assess for bruits. [Question]
In assessing the carotid arteries of an older patient with cardiovascular disease, you would:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] 1+/4+ [Question]
How would you document mild slight edema present at the ankles of a patient?
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] with the diaphragm, patient sitting up and leaning forward [Question]
The nurse wishes to listen for a pericaridal friction rub. Select the best method of listening:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] closing of the aortic and pulmonic valves. [Question]
The second heart sound (S2) is the result of:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Fifth left intercostal space at the midclavicular line [Question]
In your assessment of a normal adult, where would you expect to palpate the apical impulse?
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] consider this a normal finding and proceed with the peripheral vascular evaluation. [Question]
When performing a peripheral vascular assessment on a patient, you are unable to palpate the ulnar pulses. The patient's skin is warm and capillary refill time is normal. You would:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Examine the patient's lower arm and hand, checking for the presence of infection or lesions. [Question]
When performing an assessment of a patient, you note the presence of an enlarged epitrochlear lymph node. You would carefully examine which of the following areas?
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] moderately loud, easy to hear. [Question]
You note that a patient has a murmur and describe it as Grade III/VI. This signifies that the murmur is:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] right atrioventricular valve [Question]
Select the best description of the tricuspid valve:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] normal [Question]
The nurse is reviewing an assessment of a patient's peripheral pulses and notes that the documentation states that the radial pulses are 2+. The nurse recognizes that this reading indicates what type of pulse:
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] Peripheral blood vessels growing more rigid with age, producing a rise in systolic blood pressure [Question]
Which of the following is a normal physiologic change associated with the aging process?
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38428b97_cards_about_Exam_IV_studyguide__Question
[Answer] seek emergency referral b/c of risk of pulmonary embolism. [Question]
The nurse is performing a peripheral vascular assessment on a bedridden patient, & notes following findings in right leg: increased warmth, swelling, redness, tenderness to palpation, & positive Homan's sign. The nurse would:
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de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *graphic representation of prevalence of signal vs exposure *horizontal-exposure in mR *vertical-prevalence of signal [Answer]
histogram
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] scintillator [Answer]
absorbs xrays and re-emits part of energy as visible light
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] charged couple device [Answer]
(CCD) solid state chip that converts analog information into electronic signal
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] thin film transistor [Answer]
(TFT) electronic switch to allow charges to be collected at each pixel, directly converted to an image
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] software function designed to even the brightness (density). light areas are made darker and dark areas lighter *good for tube placement in chest imaging [Answer]
equalization
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *artificial increase in contrast at edge of structures *diamond view is the siemens term *also called high pass filtering(convolution) [Answer]
edge enhancement
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Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *software function to reduce the appearance of noise but causes loss of fine detail *also call low pass filtering(convolution) [Answer]
Smoothing
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *software that allows RT to place images together if too long for IR *scoliosis pt's *long bone measurement [Answer]
stitchgin
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *auto-ranging or normalization *software that adjusts gray scale to values of interest(VOI) in histogram *provides density/brightness at a prescribed level over large range of exposures *check exposure index to make sure you aren't over exposing [Answer]
auto re-scaling
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] default gradient curve or code applied to the data set of your image determining the initial display contrast *can be adjusted by changing window width or range after initial processing *image data from histogram is rescaled [Answer]
look up table(LUT)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *method to convert data, permits reconstruction of portions of data when other portions and their relationships are known, use inverse fourier transformation to change back data *used to demonstrate different attenuation coefficients *allows default pro [Answer]
fourier tranformation
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what are the two attenuation coefficients [Answer]
*LAC-linear attenuated coefficients *MAC-mass attenuated coefficients
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] window level [Answer]
controls brightness -direct relationship
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] window width [Answer]
contrast(gray scale)(visibility of detail) -inverse relationship
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] latent image [Answer]
invisible image after exposure, before processing
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] halide [Answer]
gives off light when stimulated by xray energy
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] manifest image [Answer]
visible image on the look up table
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] phosphor [Answer]
converts xrays to light
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] *smallest exposure change or signal difference that can be detected *main advantage of DR/CR *linear response [Answer]
contrast resolution
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] how do you change window level & window width and what do they control [Answer]
*use the sun and moon icon *vertical movement up and down(window level) controls brightness/density.(up for more brightness and down for mor density) *horizontal movement side to side(window width)to control gray scale(left more gray, right less gray)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what is the advantage of high DQE in a detector [Answer]
*higher DQE allows more absorbtion of xrays and allows you to use lower mAs
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] grid aliasing moire [Answer]
*parallel motion of grid is equal to the frequency of the scanning of the grid by the electronic imaging system *easily caused by using wrong size grid(higher frequency grid for higher kV)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what types of DR scintilators can we use today [Answer]
*cesium iodide(indirect)(CCD) *godolinium oxysulfide(indirect)(CCD or TFT) *amorphous selenium(direct)(TFT)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what are coupling elements [Answer]
*transfers xray signal to collection element using: -lens and mirror or fiber optics
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what are the collection elements [Answer]
*photodiode(PSP) *CCD(amorphus silicone) *TFT(amorphus silicone)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what are the different types of DR systems [Answer]
*PSP *CCD *CMOS *flat pannel detector
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what are the advantages of electronic imaging vs film imaging [Answer]
*improved contrast resolution *cost savings
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] amorphus [Answer]
no definate size or shape
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] exit radiation [Answer]
beam coming from pt and striking the image receptor
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] photoconductor [Answer]
TFT detectors that convert xray energy directly to e- charge without photodiode(direct capture amorphus sileneum system)
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] why is collimation important [Answer]
*incorrect collimation can cause histogram error, which can result in image that is too light or too dark *collimation can also reduce the area of exposure *reduces scatter and personell dose *improves contrast *gives a more accurate EXI
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] fill factor [Answer]
percentage of pixel that is sensitive to x-radiation
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] DAP(AKA: EXI,EI,REX or S value for CR) [Answer]
*Dose Area Product *pt dose related to volume of tissue irradiated, dependant upon exposure and field size. measured in R-cm squared
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] cropping [Answer]
cutting out uneeded areas of image, such as white edges of image that were collimated out prior to exposure, without cutting out any anatomy
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what is the default tube rating for DR systems [Answer]
80%
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what can cause histogram errors [Answer]
*part not centered *inapropriate collimation *selecting wrong histogram
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] what is pixel shifting [Answer]
computer shifts pixel back into alignment to compensate for motion
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
de31b4c5_ards_about_Digital_Radiography__Answer
[Questionv] quantum [Answer]
xray photon
[]
Flashcards about Digital Radiography
Answer
http://www.studystack.com/flashcard-842941
47/1438042986444.39_20150728002306-00100-ip-10-236-191-2_728526344_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] sensation [Answer]
the process by which our sensory receptors and nervous system receieve and represent stimulus energies from our environment
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Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] perception [Answer]
the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events
[]
Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] Top-down proscessing [Answer]
Information processing guided by higher-level mental processess, as when we construct perceptions drawing on our experience and expectations
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Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] Bottom-up processing [Answer]
Analysis that begins with the sensory receptors and works up to the brain's integration of sensory information
[]
Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] psychophysics [Answer]
the study of relationships between the physical characteristics of stimuli such as their intenistity and our psychological experience of them.
[]
Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] Absolute thresold [Answer]
The minimum stimulation needed to detect a particular stimulus 50 percent of the time
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Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json
b3c137eb_hcards_about_Myers_9_Chapter_6__Answer
[Question] Signal decetion theory [Answer]
a theory predicting how and when we detect the presence of a faint stimulus amid background stimulation assumes there is no single absolute Threshold and that detection depends partly on a person's experience, expectations, motivation, and level of fatigu
[]
Flashcards about Myers 9 Chapter 6
Answer
http://www.studystack.com/flashcard-709065
47/1438042986806.32_20150728002306-00141-ip-10-236-191-2_725215422_3.json