NMTCB MOCK EXAM Qs 2026
Questions and Answers
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%
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,(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
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,c. normal resting Tc MIBI, normal stress Tl201
d. abnormal resting Tl201, abnormal stress Tc MIBI
e. Abnormal stress Tl201, normal redistribution Tl201 - Correct answer-D. Both
resting and stress will appear abnormal to indicate an infarction
Which electron transition process involves monochromatic incident X-ray yeilding
a photon and other electron's conservation of energy by moving shells? - Correct
answer-Characteristic X Ray Production
How many dpm will yield a count rate of 640 cpm when measured by a detector
with a counting efficiency of 85%? - Correct answer-753 dpm
E=C/A
A= 640cpm/0.85 =753
E=cpm/dpm
Proper patient transfer technique includes all of the following except:
a. letting the patient help as much as possible
b. maintaining a wide base of support
c. having the patient's center of gravity away from your COG
d. using muscles of the arms and legs for lifting
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, e. getting help when it is needed - Correct answer-C. Center of gravity should be
close together
prior to performing an oncology PET/CT scan, the patient height and weight is
recorded in order to assist in the circulation of
a. CTDI
b. EF
c. CO
d. SUV
e. CTAC - Correct answer-D. standard uptake value
If tracer concentration is visualized in the skeleton, kidneys, and liver on a WBB
scan the most likely explanation for these findings is that:
a. imaging was performed too soon following tracer admin
b. the radiopharm contained excess free Tc
c. the patients renal function is compromised
d. the incorrect radiopharm was administered
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Questions and Answers
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%
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,(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
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,c. normal resting Tc MIBI, normal stress Tl201
d. abnormal resting Tl201, abnormal stress Tc MIBI
e. Abnormal stress Tl201, normal redistribution Tl201 - Correct answer-D. Both
resting and stress will appear abnormal to indicate an infarction
Which electron transition process involves monochromatic incident X-ray yeilding
a photon and other electron's conservation of energy by moving shells? - Correct
answer-Characteristic X Ray Production
How many dpm will yield a count rate of 640 cpm when measured by a detector
with a counting efficiency of 85%? - Correct answer-753 dpm
E=C/A
A= 640cpm/0.85 =753
E=cpm/dpm
Proper patient transfer technique includes all of the following except:
a. letting the patient help as much as possible
b. maintaining a wide base of support
c. having the patient's center of gravity away from your COG
d. using muscles of the arms and legs for lifting
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, e. getting help when it is needed - Correct answer-C. Center of gravity should be
close together
prior to performing an oncology PET/CT scan, the patient height and weight is
recorded in order to assist in the circulation of
a. CTDI
b. EF
c. CO
d. SUV
e. CTAC - Correct answer-D. standard uptake value
If tracer concentration is visualized in the skeleton, kidneys, and liver on a WBB
scan the most likely explanation for these findings is that:
a. imaging was performed too soon following tracer admin
b. the radiopharm contained excess free Tc
c. the patients renal function is compromised
d. the incorrect radiopharm was administered
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
