HESI Practice Test V1 exam 2022/2023 with 100% correct answers

What is the function of a rectifier? Convert alternating current to pulsating direct current In a properly positioned oblique lumbar spine radiograph, what makes up the "body" of the "Scotty dog"? Lamina Which legal concept is violated by a radiographer who performs an examination without an examination order? Battery Which is the disease process that causes increased radio density in the lung fields on an image due to inflammation and accumulation of fluid? Pneumonia Which process describes the electron-target interaction in which most diagnostic x-rays are produced? The filament electron misses all of the orbital electrons and interacts with the target atom nucleus A patient received 100mL of IV contrast media as part of an abdominal computed tomography (CT) scan, as well as 500mL of dilute, oral contrast, prior to coming to Radiology for a separate order, an intravenous urogram (IVU). The patient's creatinine is 0.4mg/dl and BUN is 36mg/dl. Why should this IVU be rescheduled? The presence of the previous oral contrast in the abdomen preludes an IVU In a typical x-ray examination room, what is considered a secondary protective barrier? Ceiling Which term describes the process by which most x-ray induced cellular damage occurs? Indirect effect A lateral L-5/S-1 lumbosacral junction is performed with the central ray (CR) directed 2 inches anterior to the anterior superior iliac spine (ASIS) and 1-1/2 inches inferior to the iliac crest. Which statement describes this method? The central ray will be well anterior to the L-5/S-1 junction Which best projection and position to demonstrate the right cervical intervertebral foramina? Anteriorposterior (AP) axial oblique projection, left posterior oblique (LPO) position What is the term for the adjustment of image brightness, regardless of exposure received? Rescaling Which patient body habitus may require the patient to be in the Trendelenburg position during a small bowel series? Asthenic How should a radiographer increase the stability of the base of support? Stand with feet a greater distance apart Which protective feature is designed to reduce exposure to the patient during fluoroscopic procedures? Foot switch