Quick

Question 1

Bun

Answer 1

8-25 mg/dl

Question 2

Creatinine

Answer 2

0.6-1.7 mg/dl

Question 3

Glomerular filtration rate(Gfr)

Answer 3

95-120 ml/min/1.73 m2

Question 4

eGFR

Answer 4

> 60

Question 5

Prothrombin time (pt)

Answer 5

10-14sec

Question 6

Partial thromboplastin time (ptt)

Answer 6

20-40sec

Question 7

INR

Answer 7

0.9-1.3

Question 8

D dimer

Answer 8

Less than 500 mg/ liter of fibrin equivalent units

Question 9

1 rad=

Answer 9

1 rem

Question 10

1 gy=

Answer 10

1000 rad

Question 11

1 sv=

Answer 11

100 rem

Question 12

Max effective dose

Answer 12

20 mSv per year no more than 50 mSv a year

Question 13

Ct annual dose

Answer 13

0.15 rem or 1.5 mSV

Question 14

Normal heart rate

Answer 14

60-100 bpm

Question 15

Normal bp

Answer 15

120/80

Systolic / diastolic

Question 16

Normal temps

Answer 16

97-99 oral

96. 5-98.5 axillary
97. 5-99.5 rectal

Question 17

Pulse

Answer 17

70-100 bpm adult

95-119 bpm child

100-180 bpm infant

Question 18

Respiration rates

Answer 18

12-20 adult

15-30 child

25-50 infant

Question 19

Hepatic arterial phase

Answer 19

20-40 sec

Question 20

Portal venous phase

Answer 20

60-90 sec

Question 21

Head exam

Answer 21

Dose- 100 ml

Delay- up 5 mins

No oral

Question 22

Neck exams

Answer 22

Dose -100 ml

Rate- 3ml/sec

Delay- 35 sec

No oral

Saline?- reduces streaks in subclavian

Question 23

Chest exam

Answer 23

Dose - 100 ml

Rate- 3 ml/ sec

Delay- 30 sec

No oral

Question 24

Abdomen exams

Answer 24

Dose - 75-100 ml

Rate- 2-4 ml/sec

Delay-

Kidneys - 80-90 sec

Liver- 70-80 sec

Pancreas- 50-60

Oral contrast used

Question 25

Pelvis exam

Answer 25

Dose - 100 ml Rate- 2-3 ml/sec Delay- few mins Oral contrast used

Question 26

Dose measurement for contrast

Answer 26

2ml per kilogram body weight

Question 27

Kidney phases

Answer 27

Corticomedullary - 30-40 sec( optimal renal cortex and veins) Nephrographic- 70-90 sec( difference between renal cortex and medulla) Excretory- 3 mins after injection ( contrast in calyces, ureter,bladder)

Question 28

Bone window

Answer 28

Ww- 2500 Wl- 350

Question 29

Soft tissue windows

Answer 29

Ww- 160 Wl- 40

Question 30

Standard windows

Answer 30

Ww- 300 Wl- 40

Question 31

Circle Willis exam

Answer 31

100 ml @ 4-5 ml/sec 24 sec delay

Question 32

P wave

Answer 32

Atrial contraction

Question 33

T wave

Answer 33

Ventricular relaxation ( complete diastole)

Question 34

Qrs wave

Answer 34

Ventricular contraction

Question 35

R wave

Answer 35

Highest amplitude and best for gating

Question 36

Ww up——- contrast?

Answer 36

Down

Question 37

Ww down——-contrast?

Answer 37

Up

Question 38

Wl down——-image brightness

Answer 38

Up

Question 39

Wl up ——— image brightness?

Answer 39

Darker image

Question 40

Slice thickness formula( mdct)

Answer 40

Thickness of beam _____________________ Total number rows of detectors

Question 41

In plane spatial resolution formula

Answer 41

Reconstruction fov ___________________ Number of pixels alone each direction of image matrix

Question 42

Pancreas biphasic delays

Answer 42

25-30 sec arterial 60-70 portal venous

Question 43

Liver biphasic delays

Answer 43

30 secs arterial 70 sec portal venous

Question 44

Spleen delay

Answer 44

75-85 secs

Question 45

Pediatric patient contrast formula

Answer 45

1ml per lb body weight

Question 46

Pixel range modern ct system

Answer 46

-1024 hu to + 3071 Hu

Question 47

Iv angle

Answer 47

20-45