Mosby Wrong Answers Chapter 2

Question 1

The amount of x-ray energy absorbed by in a unit of mass is called?

Answer 1

the Absorbed Dose

Question 2

absorbed dose is measured in?

Answer 2

Grays (Gy)

Question 3

Normal PT time is?

Answer 3

11-15 seconds

Question 4

Prothrombin (PT) is used to test?

Answer 4

coagulation ability, (used prior to an invasive CT procedure)

Question 5

the best way to reduce the risk of CIN is to:

Answer 5

make sure the PT is adequately hydrated.

Question 6

Normal GFR for women

Answer 6

60+/-10

Question 7

Normal GFR for Men

Answer 7

70+/-14

Question 8

What unit is used to quantify effective dose

Answer 8

seiverts

Question 9

approximates retaliative risk from exposure to ionizing radiation and is based on the radio sensitivity of a given tissue type.

Answer 9

Effective dose

Question 10

the approximate radiation dose measured during a scan of a 100-mm pencil ionization chamber is termed:

Answer 10

CTDI

Question 11

a term that describes a condition in which cerebral ischemia is caused by systemic hypertension:

Answer 11

vasovagal reaction

Question 12

When describing the relationship between SSP and dose profile:

Answer 12

the dose profile is always wider than the SSP

Question 13

Which technical charecteristics of a CT system does not directly affect patient dose:

Source to saurce detector

filtration

detector effciency

filament size

Answer 13

Fillament size

Question 14

2

Answer 14

stomach