Mosby's CT Exam Review Practice Test 1 Questions and Answers 2024

1. 25-35 seconds: An average range for activated PTT is: 2. B. 15 degrees: Which of the following is the correct angle of insertion for placing a butterfly needle into a vein for intravenous administration of a contrast agent? A. 5 degrees B. 15 degrees C.45 degrees D. 60 degrees 3. 2.5mL/sec: A total volume of 125mL of an iodinated contrast agent is admin- istered intravenously via automatic injector in 50 seconds. The flow rate for this injection is: 4. C. the radiation dose to the patient during a CT scan: The acronym CTDI is used to describe which of the following? A. a specialized CT imaging technique used to measure bone mineral density B.a quality control test that measures the accuracy of the laser lighting system C. the radiation dose to the patient during a CT scan D. a high speed CT scanner used for cardiac imaging 5. 1 and 3 only: While one is obtaining a thorough history from a patient prior to the intravenous injection of an iodinated contrast material, which of the following topics should be included? 1. any prior allergic reactions to contrast media 2. presence of HIV or hepatitis infection 3. history of asthma 6. 1,2&3: Which of the following factors may affect a patient's calculated glomerular filtration rate (GFR)? 1. age 2. sex 3. race 7. B. bolus technique: which of the following intravenous contrast agent adminis- tration methods provides the greatest over all plasma iodine concentration? A. drip infusion B. bolus technique C. biphasic technique D. CT portography 8. 1,2&3: A patient in shock may exhibit which of the following symptoms? 1. tachycardia 2. rapid,shallow breathing 3. cyanosis 9. D. corticosteroid: The drug SOLU-CORTEF may be classified as which of the following? A. anticholinergic B. bronchodilator C. antihistamine D. corticosteroid 10. C. iohexol: Which of the following is a non-ionic contrast material? A. iodamide B. iothalamate C. iohexol D. diatrizoate 11. C. mAs: Which of the following technical factors has a direct effect on patient dose? A. matrix size B. algorithm C. mAs D. window level 12. B.dyspnea: Which of the following terms is used describe a patient who is having difficulty breathing? A. dyslexia B. dyspnea C. dysphagia D. dysphasia