NMTCB PRACTICE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

If a technologist stands 2 feet from a radioactive source and receives 1 mrem/h from it, what will he or she absorb by stepping 1 foot closer? ANSWER: 4 mrem/hr A CT scan to determine the area of the body to be scanned is called: ANSWER: Scout and Topogram Free 99mTc pertechnetate in a bone scan kit will result in activity in the: ANSWER: gastric mucosa and thyroid A superscan is the result of: ANSWER: Diffuse skeletal metastases Given the following data, calculate the left ventricle ejection fraction Net counts end systole:20,582 counts Net counts end diastole: 44,653 counts ANSWER: 46.1% Deeagles - Stuvia US If tracer concentration is visualized in the skeleton, kidneys, thyroid, and stomach on a whole body bone image, the most likely explanation for these findings is: ANSWER: the radiopharmaceutical contained excess free 99mTc pertechnetate According to NRC regulations, records of occupational doses must be retained for how long? ANSWER: Indefinitely The filter that erases the blurring seen from simple backprojection is called a ____________ filter. ANSWER: Butterworth A contraindication for performing a myocardial perfusion resting study is: ANSWER: Nitroglycerin drip How often should linearity and spatial resolution tests be performed on a scintillation camera? ANSWER: Weekly Which of the following radiopharmaceuticals would be used for bone marrow evaluation? ANSWER: Sulfur Colloid Deeagles - Stuvia US Visible rib lesions that are arranged in a linear fashion are generally indicitive of ANSWER: Rib trauma Why is it necessary to inject two doses of 99mTc sestamibi for a myocardial perfusion study, including both rest and stress conditions? ANSWER: There is no redistribution of 99mTc sestamibi within the myocardium Captoril renal scans are commonly ordered to evaluate: ANSWER: renal hypertension What is the average CT number for bone in Hounsfield Units (HU) ANSWER: 2000 Which of the following is not a monthly CT scan quality control measure? ANSWER: Tube warmup I131 imaging is best done with which type of collimator? ANSWER: High energy A patient has suspected infection of the abdomen. Which of the following studies is best indicated? ANSWER: IN-111 tabled WBC Deeagles - Stuvia US Clearance of 99mTc MAG3 is by: ANSWER: tubular secretion