NMTCB Practice Exam 2025/2026 Exam
Questions and Answers | 100% Solved
In which RP is Tc99m left in the valence state of +7
a. sulfur colloid
b. MAA
c. MAG3
d. sestamibi - 🧠 ANSWER ✔✔A. Sulfur colloid
a tech receives a request for a patient to receive Sm153 for palliation of
pain from bone mets. the patient has a WBC count of 3500 and 40000
platelets. what should happen next?
a. the order should be changed to Sr89
b. the tx should be delayed until the platelet ct is at least 60,000
,c. the tx should be delayed until the WBC is below 2400
d. the Sm153 should be ordered - 🧠 ANSWER ✔✔B. the tx should be
delayed until the platelet ct is at least 60,000
a SC kit requires the addition of 1-3 ml containing no more than 500mCi of
TcO4-. in addition, 1.5 ml of solution A must be added before boiling, and
1.5 ml of Solution B must be added after cooling. If the kit is correctly
prepared, what is the max concentration of Tc99m it could contain?
a. 83 mCi/ml
b. 125 mCi/ml
c. 167 mCi/ml
d. 500 mCi/ml - 🧠 ANSWER ✔✔B. 125 mCi/ml
max. 1 ml TcO4- containing 500 mCi
500/(1.5+1.5+1) = 125 mCi/ml
A hine-duley phantom is useful for testing the spatial resolution and spatial
linearity with only one image.
a. true
,b. false - 🧠 ANSWER ✔✔B. false
the advantage of a lung ventilation scan performed with Xenon is
a. the ability to match perfusion and vent positioning
b. the ability to detect delayed washout
c. the ability to perform the exam at the patient's bedside
d. the ability to perform perfusion before ventilation without increasing the
dose given for the vent study - 🧠 ANSWER ✔✔B. the ability to detect
delayed washout
A diphosphonate kit contian 180 mCi of Tc99m in 30 ml when it is prepared
at 8am. Immediately, a 20 mCi dose is withdrawn for a bone scan. if the
patient arrives late at 9:30 and half the volume is accidentally discharged,
how much volume from the kit must now be added to the syringe to correct
the dose to 20 mCi? (no other doses have been withdrawn meanwhile, and
the decay factor for 1.5 hrs is 0.841)
a. 1.5 ml
b. 2.0 ml
c. 2.3 ml
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, d. 2.5 ml
e. 2.7 ml - 🧠 ANSWER ✔✔C. 2.3 mL
lots of math, sorry :(
a WBS bone scan film shows a good posterior image, but the anterior view
appears diffuse with greater soft tissue activity. what is the probable
cause?
a. wrong collimator used for anterior
b. increased patient to detector distance on the ant relative to the post
c. low tagging efficiency of the RP
d. patient was not sufficiently hydrated
e. none of the above - 🧠 ANSWER ✔✔b. increased patient to detector
distance on the ant relative to the post
Which of the following will not reduce the probability of contamination from
perspiration and saliva of a therapy patient?
a. disposable eating utensils
b. plastic covering over the mattress
Questions and Answers | 100% Solved
In which RP is Tc99m left in the valence state of +7
a. sulfur colloid
b. MAA
c. MAG3
d. sestamibi - 🧠 ANSWER ✔✔A. Sulfur colloid
a tech receives a request for a patient to receive Sm153 for palliation of
pain from bone mets. the patient has a WBC count of 3500 and 40000
platelets. what should happen next?
a. the order should be changed to Sr89
b. the tx should be delayed until the platelet ct is at least 60,000
,c. the tx should be delayed until the WBC is below 2400
d. the Sm153 should be ordered - 🧠 ANSWER ✔✔B. the tx should be
delayed until the platelet ct is at least 60,000
a SC kit requires the addition of 1-3 ml containing no more than 500mCi of
TcO4-. in addition, 1.5 ml of solution A must be added before boiling, and
1.5 ml of Solution B must be added after cooling. If the kit is correctly
prepared, what is the max concentration of Tc99m it could contain?
a. 83 mCi/ml
b. 125 mCi/ml
c. 167 mCi/ml
d. 500 mCi/ml - 🧠 ANSWER ✔✔B. 125 mCi/ml
max. 1 ml TcO4- containing 500 mCi
500/(1.5+1.5+1) = 125 mCi/ml
A hine-duley phantom is useful for testing the spatial resolution and spatial
linearity with only one image.
a. true
,b. false - 🧠 ANSWER ✔✔B. false
the advantage of a lung ventilation scan performed with Xenon is
a. the ability to match perfusion and vent positioning
b. the ability to detect delayed washout
c. the ability to perform the exam at the patient's bedside
d. the ability to perform perfusion before ventilation without increasing the
dose given for the vent study - 🧠 ANSWER ✔✔B. the ability to detect
delayed washout
A diphosphonate kit contian 180 mCi of Tc99m in 30 ml when it is prepared
at 8am. Immediately, a 20 mCi dose is withdrawn for a bone scan. if the
patient arrives late at 9:30 and half the volume is accidentally discharged,
how much volume from the kit must now be added to the syringe to correct
the dose to 20 mCi? (no other doses have been withdrawn meanwhile, and
the decay factor for 1.5 hrs is 0.841)
a. 1.5 ml
b. 2.0 ml
c. 2.3 ml
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, d. 2.5 ml
e. 2.7 ml - 🧠 ANSWER ✔✔C. 2.3 mL
lots of math, sorry :(
a WBS bone scan film shows a good posterior image, but the anterior view
appears diffuse with greater soft tissue activity. what is the probable
cause?
a. wrong collimator used for anterior
b. increased patient to detector distance on the ant relative to the post
c. low tagging efficiency of the RP
d. patient was not sufficiently hydrated
e. none of the above - 🧠 ANSWER ✔✔b. increased patient to detector
distance on the ant relative to the post
Which of the following will not reduce the probability of contamination from
perspiration and saliva of a therapy patient?
a. disposable eating utensils
b. plastic covering over the mattress
