Practice Exam 1

Question 1

Active Range for activated PTT

Answer 1

25-35 seconds

Question 2

What is PTT

Answer 2

partial thromboplastin time, labratory measure of blood coagulation

Question 3

correct angle of insertion for butterfly needle

Answer 3

15 degrees

Question 4

CTDI

Answer 4

CT Dose Index, used to quantify the radiation dose received by the patient during a CT scan

Question 5

What IV contrast administration method provides the greatest overall plasma to iodine concentration

Answer 5

IV bolus administration

Question 6

symptoms of a patient in shock

Answer 6

rapid breathing, tachycardia, hypotension, weak pulse, pallor, cyanosis, cold and clammy skin

Question 7

what is SOLU-CORTEF classified as

Answer 7

corticosteroid, brand name for hydrocortisone

Question 8

list of non-ionic contrast

Answer 8

iopamidole(isovue), iohexol(omnipaque), and iopromide(ultravist)

Question 9

dyspnea

Answer 9

difficult breathing

Question 10

Complete cardiac diastole corresponds to which portion of the cardiac cycle on an electrocardiogram (ECG)

Answer 10

T wave

Question 11

complete cardiac diastole

Answer 11

the period of atrial and ventricular relaxation after heart contraction

Question 12

Iodixanol (Visipaque)

Answer 12

non-ionic iso-osmolar

Question 13

contrast induced nephrotoxicity

Answer 13

The potentially serious decline in renal function following the IV administration of contrast material.

Question 14

effective dose

Answer 14

the quantity of absorbed radiation dose based on the radiosensitivity of a particular tissue type.

Units: Sievert

Question 15

normal range for diastolic blood pressure

Answer 15

60-90

Question 16

Parenteral Administration

Answer 16

injection of medication into the body.

common routes: intramuscular, intravenous, intradermal, subcutaneous

Question 17

Stochastic Effects

Answer 17

no threshold dose but increases in probability with increasing dose

Question 18

Enteric Precautions

Answer 18

Attempt to protect from the spread of infection through direct or indirect contact with fecal matter

Question 19

Ionic Contrast Media

Answer 19

salts consisting of sodium and/or meglumine

ex:iothalamate meglumine

Question 20

CTDI(W)

Answer 20

calculated from measurements made with dosimeters positioned at the center and periphery of a phantom and accounts for the variance in dose distribution due to the effects of beam hardening.

Question 21

unit used to express the total patient dose from a helically acquired CT examination.

Answer 21

mGy-cm (milligrays per centimeter)

Question 22

DLP: dose length product

Answer 22

total patient dose over a given scan acquisition length (z) also illustrated as CTDI(vol) X Scan Length

Question 23

simple cysts of the kidney have average attenuation values in the range of.

Answer 23

CT numbers:between 0-20

contain mostly water

Question 24

when does the arterial phase of hepatic contrast enhancement occur

Answer 24

25-35 seconds after the initiation of contrast agent administration.

Question 25

Where does the abdominal aorta bifurcate

Answer 25

L4

Question 26

On an ECG of the complete cardiac cycle, at which portion of the R-R interval is the heart muscle in diastole/

Answer 26

55%-75%

Question 27

the accumulation of gas within a degenerating intervertebral disc is called the….

Answer 27

vacuum phenomenon

Question 28

Spiral/Helical acquisition

Answer 28

obtained with the scanner continuously acquiring data as the patient travels through the ganrty

Question 29

CT study of the head typically performed WITHOUT a contrast agent

Answer 29

to rule out subdural hematoma

Question 30

phase of renal contrast enhancement the best demonstrates transitional cell carcinoma (TCC) of the bladder?

Answer 30

Excretory phase after a 3-15 minute delay

Question 31

typical use of Right Lateral Decubitus of abdomen

Answer 31

used to differentiate the pancreatic head and duodenum