Question 1

Match the following choices with the correct answer as each relates to minimizing patient radiation dose.
-male gonadal shielding

Accepted Answer

A) 60 kVp 
B) shaped contact 
C) focal spot size 
D) distance (SI
D)  
E) 44-48 inches
F)AP supine abdomen position
G)oblique projection of the abdomen
H)18 mAs @ 70 kVp 
A) 60 kVp 
B) shaped contact 
C) focal spot size 
D) distance (SI
D)  
E) 44-48 inches
F)AP supine abdomen position
G)oblique projection of the abdomen
H)18 mAs @ 70 kVp

Question 2

When comparing ESE and actual dose to an area of interest,

Accepted Answer

A) actual dose is higher than ESE. 
B) ESE and actual are equal. 
C) the actual dose and ESE are inverse. 
D) actual dose is lower than ESE. 
A) actual dose is higher than ESE. 
B) ESE and actual are equal. 
C) the actual dose and ESE are inverse. 
D) actual dose is lower than ESE.

Question 3

The maximum exposure received by the patient is at

Accepted Answer

A) the skin exit to the body. 
B) the area of interest. 
C) the gonads. 
D) the skin entrance to the body. 
A) the skin exit to the body. 
B) the area of interest. 
C) the gonads. 
D) the skin entrance to the body.

Question 4

Which of the following radiographic procedures delivers the lowest entrance skin exposure?

Accepted Answer

A) hip 
B) pelvis 
C) lumbar spine 
D) elbow 
A) hip 
B) pelvis 
C) lumbar spine 
D) elbow

Question 5

In an effort to reduce dose, the recommended SID for routine radiography is

Accepted Answer

A) 36-38 inches. 
B) 40-42 inches. 
C) 44-48 inches. 
D) 56 inches. 
A) 36-38 inches. 
B) 40-42 inches. 
C) 44-48 inches. 
D) 56 inches.

Question 6

Patient entrance skin exposure decreases as

Accepted Answer

A) source-to-image receptor distance (SI
D)  decreases. 
B) SID increases. 
C) source-to-object distance (SO
D)  decreases. 
D) object-to-image receptor distance (OI
D)  increases. 
A) source-to-image receptor distance (SI
D)  decreases. 
B) SID increases. 
C) source-to-object distance (SO
D)  decreases. 
D) object-to-image receptor distance (OI
D)  increases.

Question 7

The radiation intensity from a diagnostic x-ray unit will vary in a/an

Accepted Answer

A) direct relationship with mAs. 
B) direct relationship with the square of the kVp. 
C) inverse relationship with the square of the distance. 
D) all of the above 
A) direct relationship with mAs. 
B) direct relationship with the square of the kVp. 
C) inverse relationship with the square of the distance. 
D) all of the above

Question 8

What is the approximate entrance skin exposure for a 20-cm AP pelvis produced at 80 kVp, 20 mA, and a SID of 40 in (100 cm), if 70 kVp = 2.5 mR/mA?

Accepted Answer

The answer of What is the approximate entrance skin exposure...

Question 9

Match the following choices with the correct answer as each relates to minimizing patient radiation dose.
-has no impact upon patient dose

Accepted Answer

A) 60 kVp 
B) shaped contact 
C) focal spot size 
D) distance (SI
D)  
E) 44-48 inches
F)AP supine abdomen position
G)oblique projection of the abdomen
H)18 mAs @ 70 kVp 
A) 60 kVp 
B) shaped contact 
C) focal spot size 
D) distance (SI
D)  
E) 44-48 inches
F)AP supine abdomen position
G)oblique projection of the abdomen
H)18 mAs @ 70 kVp

Question 10

Which x-ray generator will substantially decrease the patient entrance skin exposure?

Accepted Answer

A) single-phase, unrectified 
B) single phase, rectified 
C) three-phase, 6-pulse 
D) three-phase, 12-pulse 
A) single-phase, unrectified 
B) single phase, rectified 
C) three-phase, 6-pulse 
D) three-phase, 12-pulse

Exam 13: Minimizing Patient Dose

Match the following choices with the correct answer as each relates to minimizing patient radiation dose. -male gonadal shielding

When comparing ESE and actual dose to an area of interest,

The maximum exposure received by the patient is at

Which of the following radiographic procedures delivers the lowest entrance skin exposure?

In an effort to reduce dose, the recommended SID for routine radiography is

Patient entrance skin exposure decreases as

The radiation intensity from a diagnostic x-ray unit will vary in a/an

What is the approximate entrance skin exposure for a 20-cm AP pelvis produced at 80 kVp, 20 mA, and a SID of 40 in (100 cm), if 70 kVp = 2.5 mR/mA?

Match the following choices with the correct answer as each relates to minimizing patient radiation dose. -has no impact upon patient dose

Which x-ray generator will substantially decrease the patient entrance skin exposure?

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