When preparing to add antiseptic iodine to a sterile field, why must some of the liquid be
poured into the sink before adding the remainder to the sterile container? - ANS-To
wash the container's lip to prevent contamination, this maintains the sterile field
Why is there a maximum injection pressure for an automatic injection device during
contrast media administration? - ANS-A preset maximum injection pressure helps to
prevent vessel damage
1. The QC tech performs testing after the image acquired in the past week
demonstrates exposure inconsistencies. Which kVp accuracy test reading at 80 kVp
would require corrective action?
a. 70
b. 72
c. 74
d. 76 - ANS-a. 70
- this is greater than the acceptable limit of 10%
A football player with broad shoulders presents with an obvious separation of the AC
joint. What upright bilateral AC joints projection should be taken to best demonstrate the
condition? - ANS-- With weights at 180 cm
- longer SID reduces magnification
What area of the gown is considered part of the sterile field? - ANS-The front of the
gown, waist to shoulder
What test must be performed first to ensure the validity of a mA linearity test results? -
ANS-- Timer accuracy
- mA linearity assures that mA stations are accurate. The time and kVp accuracy must
be verified prior to evaluate mA linearity
What demonstrates minimal foreshortening of the femoral neck on on an axiolateral hip
images? - ANS-- The greater and lesser trochanters are on the same transverse level
- this will verify that the CR is perpendicular to the femoral neck and the IR is parallel to
the femoral neck
What is the clinical indication for an HSG? - ANS-- Infertility assessment
, - a Hysterosalpingiogram is used for infertility to demonstrate patency of uterine tubes
Mr. Rogers presents with fixation devices protruding from the inferior aspect of his heel.
The foot is flexed 70 degree. Calcaneus images have been ordered. How should the
tech. direct the CR for the axial projection? - ANS-- 60 degree cephalad
- must increase the angle by 20 degree (40 + 20) to compensate for lesser dorsiflexion
of the foot
What will best demonstrate any medial or lateral displacement of a fracture of the ramus
of the mandible? - ANS-Axial AP (Towne)
Which projection would demonstrate air/fluid levels in the abdomen on an ICU patient
who must remain supine? - ANS-- Dorsal decubitus
- this is correct based on the patient's condition; the horizontal beam will show air/fluid
levels
NICU CXR, what can be used to determine if rotation is present? - ANS-Foreshortening
of the clavicle on the side that the baby is rotated towards
What are the most appropriate infection control measures for a patient with MRSA? -
ANS-- Gloves and gown
- keeping any linen used in the patients room
- gowns and gloves are only required because MRSA is transmitted by direct contact
What should be done when inserting the rectal tip? - ANS-- Ask the patient to take slow,
deep breaths and insert the tip during exhalation
- Exhalation promotes muscle relaxation, ensuring that the tip is easier to insert
A patient with non-Hodgkin's lymphoma arrives for a follow up ct chest scan. What
precautions should the technologist use? - ANS-Protective precautions are employed to
reduce the spread of infection to immueno compromised patients
Which projection will best demonstrate the left axillary rib free of superimposition? -
ANS-Left posterior (ap) oblique
Mr Toms, 47 years old, presents for a ct abdomen and pelvis scan with lower abdominal
pain. On the images, the tech notices thickening of the bladder wall. Which condition
should the tech suspect? - ANS-Bladder carcinoma
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