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CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C€12,62
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CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C
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CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C
1. As related to the car- Diastole
diac cycle, the term
___________refers to a re-
laxation of the heart mus-
cle.
2. What are considered one of Iothalamate meglumine
the high- osmolar contrast Diatrizoate sodium
media?
3. What technical changes Decrease of tube rotation from 360 to 180Ÿ
would serve to decrease
patient dose during a CT?
4. What medications may be Epinephrine,diphenhydramine
administered to a patient Epinephrine (adrenaline) is an Adrenergic
who is having a severely drug used as a Broncodialator. Diphenhy-
anaphylactoid would reac- dromine (Benadryl) may be used to block the
tion to Iodonated contrast? physiologic effects of the body's release of
Epinephrine,diphenhy- histamine, thus reducing the allergy effect of
dramine, atropine the contrast material. Atropine should only be
used to combat Brady cardia during a vagal
reaction to contrast material
5. In an effort to reduce pa- Size or weight
tient radiation dose the
technical factors applied to
the CT protocol should be
optimized on the basis of
_________?
6. The escape of contrast Extravasation
material from a needle
or blood vessel into the
subcutaneous tissue is
called________?
7. Thorough explanation of Breathing instructions are Properly followed.
CT procedure and prop-
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er communication with the Motion artifact does not occur.
patient are vital in ensuring
that _______? Patient anxiety is kept at a minimum
8. What of the following is bed index
considered in the calcula- MSAD multiple scan average dose accounts
tion of the MSAD for an axi- for the effects of image spacing, or bed index,
al step and shoot CT exam? on patient radiation dose during axial scan-
ning. Increases when slice thickness is greater
bed index then image spacing and decreases when slice
thickness is less than bed index
gantry rotation time
MA setting
Pitch
9. Risk factors for contrast in- pre existing renal function compromise de-
duced nephrotoxicity (CIN) hydration, diabetes, myeloma, advanced age,
include and cardiovascular disease
10. ofDuring ACT, the patient's The rotational nature of the X-ray tube
body should be shielded
above and below because
of ________?
11. What is the normal range 95-100%
for oxygen saturation?
12. What lab values can be GFR, BUN & creatinine
used to evaluate the renal
function of the patient?
13. Which of the following angio catheter
would be best suited for in-
travenous injection of con-
trast material with a power
injector?
Butterfly needle central ve-
nous line
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23 gauge
spinal needle
angio catheter
14. Prior to intravenous in- Renal function, allergy history, cardiac hx
jection of iodinated con-
trast material thev patient
should be questioned re-
garding their?
15. A _________ Infection is Nosocomial
one that a patient acquires
during a stay in a health
care institution
16. CTDIw is a weighted in- Beam hardening
dex that approximates ra-
diation dose on the basis
of the variations that occur
across the field of view be-
cause of__________?
17. What is the normal ranges creat = 0.5 - 1.5
for creatinine and BUN? BUN = 7-25 mg/dl
18. What gauge of butterfly al- The one with the smallest number
lows for most rapid admin-
istration of iodinated intra-
venous contrast
19. The embryo or fetus is The 1st trimester
most sensitive to ionizing
radiation during what por-
tion of gestation?
20. The Choice between ion- The allergic history of the patient and the age
ic and non ionic contrast and physical condition of the patient
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