CAMRT - Test Review Questions With Complete Answers.

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? - 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? - 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 - 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? - - With weights at 180 cm - longer SID reduces magnification 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 results? - - 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? - - 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? - - 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? - - 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? - Axial AP (Towne) Which projection would demonstrate air/fluid levels in the abdomen on an ICU patient who must remain supine? - - 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? - 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? - - 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? - - 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 insertA patient with non-Hodgkin's lymphoma arrives for a follow up ct chest scan. What precautions should the technologist use? - Protective precautions are employed to reduce the spread of infection to immueno compromised patients