CAMRT Practice Exam Rated 100% Correct!!

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 field? - To wash the container's lip to prevent contamination (this maintains the sterile field) Why is the maximum injection pressure of an automatic injection device preset during contrast administration? - To prevent vessel damage (max preset pressure helps prevent vessel damage) The QC technologist performs testing after images acquired the past week demonstrate exposure inconsistencies. Which kVp accuracy test reading would require corrective action? - 70kV (outside of acceptable 10% limit) A football player with broad shoulders presents with obvious separation of the AC joint. What upright bilateral AC joints projection should be taken? - With weights at 180cm (weights will best demonstrate the separation, longer SID reduces magnification which increases image quality) What area of the gown is considered part of the sterile field? - The front of the gown, waist to shoulder What test must be performed first to ensure the validity of a mA linearity test result? - Timer accuracy (mA linearity assures that mA stations are accurate. The time and kVp accuracy must be verified prior to evaluating mA linearity) What demonstrates minimal foreshortening of the femoral neck on an axiolateral hip image? - The greater and lesser trochanters are on the same transverse level What is the clinical indication for an HSG? - Infertility assessment (an HSG 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 degrees. Calcaneus images have been ordered. How should the technologist direct the CR for the axial view? - 60 degrees cephalad. (The tech must increase the angle by 20 degrees)What will best demonstrate any medial/lateral displacement of a fracture of the mandibular ramus? - AP Axial (Towne) (axiolateral oblique and lateral will both show ant/post displacement) Which of the following would demonstrate air/fluid levels in the abdomen on an ICU patient who must remain supine? - Dorsal decubitus (using HB - shows air/fluid levels)