Nuclear Medicine Rad Boards Review
Exam Latest Updated Graded A+
Bone Scan Tc-99m MDP: nl distribution - ANSWER-Normal biodistribution: bone,
kidney, bladder
Bone Scan Tc-99m MDP: scan time - ANSWER-Timing: 2 hrs
Causes of diffuse liver uptake on bone scan - ANSWER-Aluminum contamination
(chemical purity)
Colloid formation (radiochemical purity)
F-18 FDG dose - ANSWER-Dose: 10-20 mCi
F-18 FDG half life? - ANSWER-T 1/2: 109 min
F-18 FDG scan time - ANSWER-Imaging - PET/CT at 60 min post-injection, +/- delays
in H&N, others.
FDG: radionuclide, photopeak - ANSWER-F-18, Energy: 511 keV, coincident photons
GALLIUM-67 dose - ANSWER-Dose: 10 mCi.
GALLIUM-67 half life - ANSWER-T ½ 78 hrs.
GALLIUM-67 indications/uses - ANSWER-Indications: Tumor imaging, infection and
inflammation imaging.
E.g. Sarcoid, lymphoproliferative dz, PCP pneumonia and other pulmonary infections
GALLIUM-67 photopeaks - ANSWER-Energy: 93, 185, 288, 394 keV (Think 100, 200,
300, 400 keV.)
I-123 scan: uses - ANSWER-Surveillance of thyroid CA
I-123: critical organ - ANSWER-Critical Organ: bladder
I-123: dose and administration - ANSWER-Dose: 2-4 mCi Orally
I-123: photopeak and half life - ANSWER-Energy: 159 keV. T1/2 = 13 hrs.
I-123: when to scan? - ANSWER-Image: 24 hr +/- 48 hr planar WB + Hi-count
neck/chest. ? Cobalt transmission
I-131 dose for diagnostic scan? - ANSWER-Dose: 4 mCi I-131 PO.
Exam Latest Updated Graded A+
Bone Scan Tc-99m MDP: nl distribution - ANSWER-Normal biodistribution: bone,
kidney, bladder
Bone Scan Tc-99m MDP: scan time - ANSWER-Timing: 2 hrs
Causes of diffuse liver uptake on bone scan - ANSWER-Aluminum contamination
(chemical purity)
Colloid formation (radiochemical purity)
F-18 FDG dose - ANSWER-Dose: 10-20 mCi
F-18 FDG half life? - ANSWER-T 1/2: 109 min
F-18 FDG scan time - ANSWER-Imaging - PET/CT at 60 min post-injection, +/- delays
in H&N, others.
FDG: radionuclide, photopeak - ANSWER-F-18, Energy: 511 keV, coincident photons
GALLIUM-67 dose - ANSWER-Dose: 10 mCi.
GALLIUM-67 half life - ANSWER-T ½ 78 hrs.
GALLIUM-67 indications/uses - ANSWER-Indications: Tumor imaging, infection and
inflammation imaging.
E.g. Sarcoid, lymphoproliferative dz, PCP pneumonia and other pulmonary infections
GALLIUM-67 photopeaks - ANSWER-Energy: 93, 185, 288, 394 keV (Think 100, 200,
300, 400 keV.)
I-123 scan: uses - ANSWER-Surveillance of thyroid CA
I-123: critical organ - ANSWER-Critical Organ: bladder
I-123: dose and administration - ANSWER-Dose: 2-4 mCi Orally
I-123: photopeak and half life - ANSWER-Energy: 159 keV. T1/2 = 13 hrs.
I-123: when to scan? - ANSWER-Image: 24 hr +/- 48 hr planar WB + Hi-count
neck/chest. ? Cobalt transmission
I-131 dose for diagnostic scan? - ANSWER-Dose: 4 mCi I-131 PO.
