NMTCB Mock Exam With 100% Correct Answers 2024, Exams of Advanced Education

Download NMTCB Mock Exam With 100% Correct Answers 2024 and more Exams Advanced Education in PDF only on Docsity! NMTCB Mock Exam With 100% Correct Answers 2024 A false positive In-111 WBC scan may be due to increased abdominal uptake in a patient: a. that is currently taking antibiotics b. with a sinus infection c. with a stomach ulcer d. with a renal cyst e. with cholecystitis - Correct Answer-B. Sinus Infection due to sinus drainage A patient receives 285uCi of I-123 NaI orally for a thyroid uptake study. Calculate the 24 hour percent uptake using the given data: Dose Count= 1425916 cpm Background= 88 cpm Patient counts= 193046 cpm Patient Background count= 473 cpm - Correct Answer-14% (neck-thigh)(100)/(capsule-BKG) (193046-473)(100)/(1425919-88) The image was obtained while performing a WBB scan on a 62 year old male, the most probable reason for the appearance on the image is: a. metastatic disease b. trauma to chest wall c. localized osteoporosis d. osteomyelitis e. Paget's disease - Correct Answer-B. Trauma to chest wall (metastatic will appear sporadically, pagets will show increase brain, femur, and pelvis. Trauma is usually displayed as a pattern) You are receiving a completed MPI pharmacologic study which of the following descriptions suggest that the patient has a myocardial infarction? a. abnormal resting Tc99m tetrofosmin, normal stress Tc99m tetrofosmin b. abnormal resting MIBI, normal stress Tl-201 Thallium Cl c. normal resting Tc MIBI, normal stress Tl201 e. there is excess alumina in the generator eluate - Correct Answer-e. excess alumina will cause hydrolyzed reduced Tc build up in the elution and cause artifacts on WBB images Which of the following image findings is most consistent with chromatography results of a Tc SC kit demonstrating 90% radiopharm purity? a. thyroid uptake b. bone uptake c. lung uptake d. gallbladder activity c. kidney uptake - Correct Answer-A. thyroid uptake, 92% is the radiopharm purity required for SC kits and free Tc will localize in the thyroid naturally The results shown below were obtained when the Tc99m eluate was assayed for Mo99 breakthrough at 0600, immediately following elution Mo99 10uCi Tc99m 416mCi which of the following statements is true about this elution at 1700? a. The eluate should not be used to label compounds with Tc99m b. The eluate does not contain sufficient Tc99m activity c. The eluate may be used to label compounds with Tc99m d. The eluate must not be administered to patients e. The eluate contains too much Mo99 activity - Correct Answer-C. The eluate may be used to label compounds with Tc99m. (decay activity of Mo99 AND Tc99m, solve as ratio: Mo99/Tc99m... <0.15uCi Mo99/1mCi Tc99m According to NRC regulations, which of the following signs should be posted on the door of a radiopharmacy lab in which radiation levels have been measured to be 12.0mrem/hr? a. no posting of this area is required b. Keep out: Rad Materials c. Caution: Rad Area d. Caution: High Rad Area e. Caution: Very High Rad Area - Correct Answer-c. rad area (LOOK UP LEVELS) Which of the following statements about a patient who receives 75mCi of oral I-131 NaI is false? a. room items myst be surveyed for contamination prior to removal b. The patient's spouse may stay in the room continuously c. Radiation surveys of the patient's room and surrounding area must be conducted d. The patient can be discharged once it is determined that the dose another individual woudl receive from the patient is less than 0.5rem e. The patient should be instructed to void frequently and to follow good hygiene. - Correct Answer-B. The patients spouse may not stay in the room continuously as the limits for public may not exceed 2mR/hr. According to NRC regulations, which of the following statements is true regarding the receipt of a package containing only Tc99m labeled radiopharms? a. the package may be reopened upon receipt, no monitoring procedures are required. b. The package must be set asside for a minimum of three hours. b. 319 c. 56 d. 414 e. 4.4 - Correct Answer-D. 441mCi we know we need more than what we eluted so the answer will not be below the eluted amount of activity Which of the following agents would be used to perform a hepatobiliary GBEF imaging study? a. cholecystokinin and Tc99m disofenin b. cholecystokinin and Tc99m SC c. morphine and Tc99m disofenin d. morphine and Tc99m meteriatide e. cholecystokinin and Tc99m mertiriatide - Correct Answer-A. CCK and Tc99m Disofenin What is the minimum number of mCi of Tc99m MDP needed at 8:00 am to deliver three 20mCi doses that are to be injected at 8:30am, 10:00am, and 1:30PM? (1-hr decay factor is 0.891 and 30-minute decay factor is 0.944) a. 65 b. 75 c. 85 d. 95 e. 100 - Correct Answer-use reverse decay and then divide. C. 85mCi Extrinsic uniformity is performed daily on a scintillation camera with a Co-57 sheet source and a LEAP parallel-hole collimator and results are continuously +/- 10% of 245sec to collect 200kts, except last day which took 560s to 200kcts which of these will not be the cause of this? a. incorrect photopeak/window setting b. incorrect collimator c. incorrect acquisition matrix d. cracked crystal e. incorrect positioning of the Co-57 sheet source - Correct Answer-C. incorrect acquisition matrix The body of a technologist who is performing PET/CT imaging daily should be monitored with a a. pocket dosimeter located in the chest pocket of the labcoat b. thermoluminescent dosimeter worn at the neckline c. optically stimulated luminescent dosimeter worn at the neckline d. film badge worn on the dominant wrist e. thermoluinescent dosimeter worn on the right hand - Correct Answer-C. OSL dosimeter at neckline In lung perfusion imaging, an adverse reaction is less likely to occur in a patient who has Pulmonary hypertension if the technologist: a. performs the injection with the patient in an upright position b. performs the injection with the patient in a supine position c. decreases the size of the particles to be injected d. flushes the syringe with blood after the injection e. decreases the number of particles to be injected. - Correct Answer-Decrease the number of particles to be injected as size cannot be changed by the technologist. Which of the following Tc-99m labeled agents is the preferred tracer for demonstrating intermittent GI bleed? a. Human Serum Albumin b. Mebrofenin When a I-131 whole body metastatic survey is performed, the technologist should use the: a. pinhole collimator b. diverging collimator c. flat field collimator d. LEAP collimator e. HEAP collimator - Correct Answer-E. High energy all purpose collimator A tech must administer 8mCi Tc99m to a patient at 1100 on Aug. 4th. Based on the vial label information shown below, what volume should be administered to the patient? Tc99m Mebrofenin: Calibration: 0700 Aug 4 Total Activity: 100mCi Total Vol: 8.5ml Concentration: 11.8mCi/ml Expiration: 1500 Aug, 4 - Correct Answer-concentration = 11.8mCi/ml decay 4 hours: (0.891^4) = 0.630 so (11.8mCi/ml)(0.630)= 7.45mCi/ml at 1100 8mCi/7.45mCi/ml = 1.07ml ~ 1.1ml A parathyroid adenoma will concentrate which of the following radiopharms? a. I-123 NaI b. Tc99m NaO4 c. Tc99m Sestamibi d. I-131 NaI e. F18 NaI - Correct Answer-C. Tc99m Sestamibi If we are looking for a mechanical obstruction in renal function post diuretic administration, what will be renogram curve looks like? - Correct Answer-The kidney with a mechical obstruction will not empty upon lasix/furosemide administration because there is something in the way, therefore the curve will continue to rise/plateau at highest peak. If the kidney is non-functioning or has failed, what will the renogram curve look like? - Correct Answer-The curve will plateau and continue straight and toward the x-axis at minimal counts A patient's EDV is 180ml, ESV is 70ml and HR is 50 bpm, what is the patients CO? (ml/min) a. 61 b. 110 c. 5500 d. 7700 - Correct Answer-CO= HR x SV SV= EDV-ESV 180-70 = 110 110ml x 50bpm = C. 5500 ml/min Areas of retention of Xe133 in the area of the right upper quadrant of the abdomen is associated with: a. particles too large b. obstructive lung disease c. pulmonary lung disease d. fatty tissue e. cardiac shunt - Correct Answer-D. fatty tissue this is because the liver will take up the excess gas and is primarily made of fatty tissues A patient is administered the radiopharm for a lung perfusion study while in an upright position, therefore the image will show: a . the base of the lungs will appear as decreased activity b. the apex of the lungs will appear as decreased activity c. the apex of the lungs will appear as increased activity d. the base of the lungs will appear as increased activity e. the distribution of the dose is unaffected - Correct Answer- b. the apex of the lungs will appear as decreased activity because more MAA will fall to the base and the apex will appear less A renogram is ordered on a patient following renal transplant surgery. In order to correctly perform the study on this patient, the tech would: a. perform the normal renogram protocol b. change the length of time necessary to acquire the renogram study c. administer lasix prior to performing the normal protocol d. perform the normal renogram protocol except use an anterior imaging position e. increase the dose of Tc99m DMSA administered - Correct Answer-D. Perform the normal renogram except use an anterior imaging position When viewing filtering process of reconstructing an image, if the frequency is increased, what is the region of distortion that is seen on the image? - Correct Answer-Noise region, far right, higher frequency After injecting a patient with TCSC, the technologist finds out that the patient had a barium enema earlier that morning. In order to improve the diagnostic capability of the images, the tech would image the patient: a. ANT with the patient lying on their right side b. POST with the patient lying on their left side c. ANT with patient supine d. POT with patient prone e. ANT with the patient standing - Correct Answer-E. ANTERIOR< STANDING< because of gravity will take the sulfur colloid particles down to region faster and the barium would be lower in the body. According the NRC regulations, records of area radiation surveys must be maintained for how long? a. 3 years b. 5 years c. 10 years d. 20 years e. indefinitely - Correct Answer-A. 3 years The first concern of a technologist who accidentally spills a Tc99m patient dose should be: a. leave the area quickly because the substance may be toxic b. disregard the spill and let housekeeping take care of it c. notify supervisor and all coworkers d. prevent the spread of the spill by covering it with absorbent materials e. notify the radiation safety officer and let the officer take care of it. - Correct Answer-D. prevent the spread of spill by covering it with absorbent A radiopharm calibrated for 9am on Nov. 2 contained 5mCi in 1ml. A patient weighing 43kg is to receive 30uCi/kg of activity at 9am on Nov.5. What is the correct total activity and volume b. false pos. scan for lymph node uptake c. false pos. scan for a bone marrow uptake d. false pos. for patient with multiple myeloma e. false neg. scan for patient with brain tumor - Correct Answer-B. false positive for lymph node uptake Binding energy of an electron is the: a. energy required to move an electron from the K-shell to the L-shell b. energy transferred to the Auger electron c. energy given up to the photon in a nuclear transition d. energy required to cause a positron to be created e. energy required to remove an electron from its orbit - Correct Answer-E. energy required to remove an electron from its orbit During routine liver-spleen imaging with the TcSC, lung accumulation is noted. Which of the following QC parameters would best explain this finding? a. Radiochromatography b. COlor of the solution c. pH of the Tc99m eluate d. Particel size of the solution e. breakthrough of the Mo99 in the elute - Correct Answer-D. particle size of the solution When performing a MPI pharmacological stress test using regadenoson, the radiopharm should be injected: a. immediately prior to the saline flush b. 3-5 minutes after the regadenoson admin c. 20 seconds after the saline flush admin d. when the patient reaches their target HR e. halfway into the reg admin - Correct Answer-c. 20 seconds post saline flush after reg Clinical images obtained from a scintillation camera have recently deteriorated in quality, but routine flood and bar phantom images appear unchanged. Which of the following statements best explains this discrepancy? a. The liquid in the flood field was inadequately mixed. b. the narrowest bar spacing in the phantom is too wide to detect changes c. the correction circuitry of the camera was in the "on" position d. the flood image was obtained for 10 mil rather than 50 milcts e. the flood image was collected with the camera pointing up - Correct Answer-B. The narrowest bar spacing in the phantom is too wide to detect changes Radiopaque contrast media is responsible for approx what percentage of all acute renal failure events? a. 1% b. 10% c. 20% 3. 30% e.50% - Correct Answer-B. 10% Y-90 microspheres is administered: a. intraarterially b. intraperitoneally c. intravascularly d. intrathecally e. inhalation - Correct Answer-A. Intraarterially e. COR correction - Correct Answer-B. filtered backprojection What is the criteria for a medical event to occur when administering a therapy? - Correct Answer-Must be wrong person, route, wrong dose, wrong amount +/- 20% Which of the following is most appropriate instruments for determining the exposure rate from a patient that was administered 150mCi's of I-131 orally? a. film badge b. Thin window GM c. AN ionzation chamber d. direct-reading dosimeter e. liquid scintillation counter - Correct Answer-C. ion chamber A NM dept has a Whole body action level of 500mrem per month. According to the NRC, which of the following statements is true regarding this action level? a. it is fine, nothing b. it should be reduced to 450 mrem/month c. raised to 600 mrem/month d. reduced to 410 mrem/month e. raised to 550 mrem/month - Correct Answer-D. reduced to 410 mrem/month because must not exceed 5000 mrem/year so 500 * 12 is over 5000 so 410 *12 is under 5000mrem/year