hesi v2 practice test with answers
In which way can the radiographer minimize motion due
to peristalsis?
a. give the patient explicit instructions
b. expose the radiograph on expiration
c. expose the radiograph on inspiration
d. decrease exposure time
d. decrease exposure time
which statement is correct regarding the relationship of
patient dose to exposure index (EI)?
a. EI is always greater than the patient's dose
b. EI gives a very accurate representation of patient dose
c. EI gives an approximation of the patient's dose
d. EI gives an exact measurement of patient dose
c. EI gives an approximation of the patient's dose
,Assuming other exposure factors remain the same, which
source-to-image-receptor-distance (SID) causes the
greatest reduction in x-ray quantity at the image receptor
(IR)?
a,.44 inches.
b. 60 inches.
c. 72 inches.
d. 40 inches.
c. 72 inches.
Which factor would the radiographer choose to maximize
recorded detail in the image?
a. Low milliampere-seconds (mAs).
b. Small focal spot.
c. 100 cm source to image receptor distance (SID).
d. High kilovolts peak (kVp).
b. Small focal spot.
,Which will increase the appearance of noise in a digital
image, assuming only the named factor in each response
is changed?
a. Large matrix.
b. Increased mAs.
c. High kVp technique.
d. Short SID.
a. Large matrix.
What is the result if the total lead content of a grid is
decreased?
a. Decreased scatter absorption.
b. Greater image contrast.
c. Higher patient dose.
d. Increased scatter absorption
a. Decreased scatter absorption.
, If a radiographer wanted to double image density without
doubling the patient's dose, which action should be
taken?
a. Double milliampere-seconds (mAs).
b. Increase kilovolts peak (kVp) by 15%.
c. Increase milliampere-seconds (mAs) by 15%.
d. Double kilovolts peak (kVp).
b. Increase kilovolts peak (kVp) by 15%.
Digital radiography has the ability to produce 16,000
shades of gray. What appropriate bit depth (dynamic
range) does this represent?
a. 10 bit depth.
b. 16 bit depth.
c. 12 bit depth.
d. 14 bit depth.
d. 14 bit depth.
In which way can the radiographer minimize motion due
to peristalsis?
a. give the patient explicit instructions
b. expose the radiograph on expiration
c. expose the radiograph on inspiration
d. decrease exposure time
d. decrease exposure time
which statement is correct regarding the relationship of
patient dose to exposure index (EI)?
a. EI is always greater than the patient's dose
b. EI gives a very accurate representation of patient dose
c. EI gives an approximation of the patient's dose
d. EI gives an exact measurement of patient dose
c. EI gives an approximation of the patient's dose
,Assuming other exposure factors remain the same, which
source-to-image-receptor-distance (SID) causes the
greatest reduction in x-ray quantity at the image receptor
(IR)?
a,.44 inches.
b. 60 inches.
c. 72 inches.
d. 40 inches.
c. 72 inches.
Which factor would the radiographer choose to maximize
recorded detail in the image?
a. Low milliampere-seconds (mAs).
b. Small focal spot.
c. 100 cm source to image receptor distance (SID).
d. High kilovolts peak (kVp).
b. Small focal spot.
,Which will increase the appearance of noise in a digital
image, assuming only the named factor in each response
is changed?
a. Large matrix.
b. Increased mAs.
c. High kVp technique.
d. Short SID.
a. Large matrix.
What is the result if the total lead content of a grid is
decreased?
a. Decreased scatter absorption.
b. Greater image contrast.
c. Higher patient dose.
d. Increased scatter absorption
a. Decreased scatter absorption.
, If a radiographer wanted to double image density without
doubling the patient's dose, which action should be
taken?
a. Double milliampere-seconds (mAs).
b. Increase kilovolts peak (kVp) by 15%.
c. Increase milliampere-seconds (mAs) by 15%.
d. Double kilovolts peak (kVp).
b. Increase kilovolts peak (kVp) by 15%.
Digital radiography has the ability to produce 16,000
shades of gray. What appropriate bit depth (dynamic
range) does this represent?
a. 10 bit depth.
b. 16 bit depth.
c. 12 bit depth.
d. 14 bit depth.
d. 14 bit depth.
