NMTCB FINAL TEST 2026 QUESTIONS
WITH CORRECT ANSWERS GRADED A+
• Half-life of Tc99.
Answer: 6 hours
• Half-life of Mo99.
Answer: 66 hours
• Half-life of In-111.
Answer: 67 hours
• Half-life of Tl-201.
Answer: 73 hours
• Half-life of Ga-67.
Answer: 78 hours
• Half-life of I-123.
Answer: 13 hours
• Half-life of Xe-133.
Answer: 5.3 days
• Half-life of I-131.
Answer: 8 days
• Bone scan adult dose.
Answer: 20-30 mCi IV (Tc-99m MDP/HDP)
• Half-life of F-18.
Answer: 110 minutes
• Bone scan pediatric dose.
Answer: 0.25 mCi/kg (minimum ~3 mCi)
• Rest MPI dose (1-day protocol).
Answer: 8-12 mCi Tc-99m
,• Stress MPI dose (1-day protocol).
Answer: 24-36 mCi Tc-99m
• Half-life of Ga-68.
Answer: 68 minutes
• Half-life of Rb-82.
Answer: 75 seconds
• 2-day MPI dose.
Answer: 20-30 mCi each day
• Thallium-201 dose.
Answer: 2-4 mCi
• Half-life of Lu-177.
Answer: 6.7 days
• Adenosine infusion dose.
Answer: 140 mcg/kg/min for 6 minutes
• Hemopoatic (Bone Marrow) Syndrome.
Answer: * 1-10 Gy * infection, bleeding, bone marrow failure * low WBC,
low plateletes, infections, bruising * 2-6 weeks
• Regadenoson (Lexiscan) dose.
Answer: 0.4 mg rapid IV push
• Dipyridamole dose.
Answer: 0.56 mg/kg over 4 minutes
• Gastrointestinal (GI) Syndrome.
Answer: * 10-50 Gy * GI destruction, sepsis * nasuea, vomitting, bloody
direara, dehydration * 3-10 days
• Cerebrovascular (CVS) Syndrome.
Answer: * greater than 50 Gy * brain swelling * seizures, unconciousness *
hours to 1-2 days
,• Dobutamine max dose.
Answer: 40 mcg/kg/min
• DOT White 1.
Answer: less than 0.5 mrem/hr
• Aminophylline reversal dose.
Answer: 50-250 mg IV
• DOT Yellow 2.
Answer: 0.5-50 mrem/hr
• FDG adult dose.
Answer: 10-20 mCi IV
• DOT Yellow 3.
Answer: 50-200 mrem/hr
• FDG pediatric dose.
Answer: ~0.14 mCi/kg
• Bone Scan.
Answer: 20-30mci MDP/HDP
• I-123 thyroid uptake dose.
Answer: 200-400 µCi
• Tc-99m pertechnetate thyroid dose.
Answer: 5-10 mCi
• Lung Ventilation.
Answer: * 10-20mci of Xe133 * 25-40mci of DTPA
• I-131 uptake dose (diagnostic).
Answer: 5-10 µCi
• I-131 ablation dose.
Answer: 30-150 mCi
• Lung Perfusion.
, Answer: 2-6mci MAA
• Liver/Spleen.
Answer: 2-7mci sc
• Gastric Emptying.
Answer: 1mci of SC 20uci DTPA 125uci In111 DTPA
• GI Bleed Scan.
Answer: 20-30mci RBC 10-20 mci SC
• Parathyroid sestamibi dose.
Answer: 20-30 mCi Tc-99m
• Thyroid Uptake.
Answer: 100-450uci I-123 1uci-10mci I-131
• MAG3 adult dose.
Answer: 8-12 mCi
• Thyroid Scan.
Answer: 100-450uci I-123 1uci-10mci I-131
• Renal ERPF.
Answer: 3-15mci MAG3
• Renal GFR.
Answer: 3-15mci DTPA
• MAG3 pediatric dose.
Answer: 0.1 mCi/kg
• Renal Cortical.
Answer: 1-6mci DMSA
• Lymphstigraphy.
Answer: 200uci-2mci SC
• Infection/Inflammation.
Answer: HMPAO In-111
WITH CORRECT ANSWERS GRADED A+
• Half-life of Tc99.
Answer: 6 hours
• Half-life of Mo99.
Answer: 66 hours
• Half-life of In-111.
Answer: 67 hours
• Half-life of Tl-201.
Answer: 73 hours
• Half-life of Ga-67.
Answer: 78 hours
• Half-life of I-123.
Answer: 13 hours
• Half-life of Xe-133.
Answer: 5.3 days
• Half-life of I-131.
Answer: 8 days
• Bone scan adult dose.
Answer: 20-30 mCi IV (Tc-99m MDP/HDP)
• Half-life of F-18.
Answer: 110 minutes
• Bone scan pediatric dose.
Answer: 0.25 mCi/kg (minimum ~3 mCi)
• Rest MPI dose (1-day protocol).
Answer: 8-12 mCi Tc-99m
,• Stress MPI dose (1-day protocol).
Answer: 24-36 mCi Tc-99m
• Half-life of Ga-68.
Answer: 68 minutes
• Half-life of Rb-82.
Answer: 75 seconds
• 2-day MPI dose.
Answer: 20-30 mCi each day
• Thallium-201 dose.
Answer: 2-4 mCi
• Half-life of Lu-177.
Answer: 6.7 days
• Adenosine infusion dose.
Answer: 140 mcg/kg/min for 6 minutes
• Hemopoatic (Bone Marrow) Syndrome.
Answer: * 1-10 Gy * infection, bleeding, bone marrow failure * low WBC,
low plateletes, infections, bruising * 2-6 weeks
• Regadenoson (Lexiscan) dose.
Answer: 0.4 mg rapid IV push
• Dipyridamole dose.
Answer: 0.56 mg/kg over 4 minutes
• Gastrointestinal (GI) Syndrome.
Answer: * 10-50 Gy * GI destruction, sepsis * nasuea, vomitting, bloody
direara, dehydration * 3-10 days
• Cerebrovascular (CVS) Syndrome.
Answer: * greater than 50 Gy * brain swelling * seizures, unconciousness *
hours to 1-2 days
,• Dobutamine max dose.
Answer: 40 mcg/kg/min
• DOT White 1.
Answer: less than 0.5 mrem/hr
• Aminophylline reversal dose.
Answer: 50-250 mg IV
• DOT Yellow 2.
Answer: 0.5-50 mrem/hr
• FDG adult dose.
Answer: 10-20 mCi IV
• DOT Yellow 3.
Answer: 50-200 mrem/hr
• FDG pediatric dose.
Answer: ~0.14 mCi/kg
• Bone Scan.
Answer: 20-30mci MDP/HDP
• I-123 thyroid uptake dose.
Answer: 200-400 µCi
• Tc-99m pertechnetate thyroid dose.
Answer: 5-10 mCi
• Lung Ventilation.
Answer: * 10-20mci of Xe133 * 25-40mci of DTPA
• I-131 uptake dose (diagnostic).
Answer: 5-10 µCi
• I-131 ablation dose.
Answer: 30-150 mCi
• Lung Perfusion.
, Answer: 2-6mci MAA
• Liver/Spleen.
Answer: 2-7mci sc
• Gastric Emptying.
Answer: 1mci of SC 20uci DTPA 125uci In111 DTPA
• GI Bleed Scan.
Answer: 20-30mci RBC 10-20 mci SC
• Parathyroid sestamibi dose.
Answer: 20-30 mCi Tc-99m
• Thyroid Uptake.
Answer: 100-450uci I-123 1uci-10mci I-131
• MAG3 adult dose.
Answer: 8-12 mCi
• Thyroid Scan.
Answer: 100-450uci I-123 1uci-10mci I-131
• Renal ERPF.
Answer: 3-15mci MAG3
• Renal GFR.
Answer: 3-15mci DTPA
• MAG3 pediatric dose.
Answer: 0.1 mCi/kg
• Renal Cortical.
Answer: 1-6mci DMSA
• Lymphstigraphy.
Answer: 200uci-2mci SC
• Infection/Inflammation.
Answer: HMPAO In-111
