Skeletal System SPRINGER NMTCB PRACTICE
Questions and Answers
Which of the following is a malignant bone disease?
(a) Paget's disease
(b) Ewing's sarcoma
(c) Osteomyelitis
(d) Osteoid osteoma
B Ewing's Sarcoma
Ewing's sarcoma is a type of cancer most often found in children and young adults
and is more common in males than females.
What is the purpose of a reducing agent in a 99mTc diphosphonate kit?
(a) To oxidize technetium
(b) To lower the valence state of technetium
(c) To improve the tag efficiency (
d) Both (b) and (c)
(e) (a), (b), and (c)
d) Both (b) and (c)
Stannous chloride reduces the valence state of technetium, thereby improving
the tag efficiency.
The presence of free pertechnetate on a bone scan may be the result of:
(a) The use of a radiopharmaceutical which was prepared too long ago
(b) Introduction of air into the kit vial while adding technetium
(c) Increased blood flow to bones
(d) Both (a) and (b)
d) Both (a) and (b)
Free pertechnetate demonstrated as gastric, salivary, and thyroid activity on bone
, scans may be the result of administering a dose from a kit that has been
prepared more than 4 h prior to injection.
Additionally, if air has been introduced into the reaction vial during labeling, there
may be a poor technetium-phosphate tag
What timing protocol best describes a four-phase bone scan?
(a) During injection, immediately following injection, 2-4 h, and 18-24 h
(b) During injection, 2-4 h, 24 h, and 48 h
(c) During injection, immediately following injection, 2-4 h, and 6 h
(d) None of the above
(a) During injection, immediately following injection, 2-4 h, and 18-24 h
The fourth phase of imaging is usually completed approximately 24 h following
injection; therefore, choices (b) and (c) are incorrect.
This protocol may be necessary in patients with renal failure because soft tissue
activity may persist
See an expert-written answer!
A bone scan showing relatively uniformly increased skeletal uptake of
radiopharmaceutical with almost absent renal and bladder activity is usually
referred to as a:
(a) Flare phenomenon
(b) Superscan
(c) Renal failure
(d) Suprascan
B. Superscan
Questions and Answers
Which of the following is a malignant bone disease?
(a) Paget's disease
(b) Ewing's sarcoma
(c) Osteomyelitis
(d) Osteoid osteoma
B Ewing's Sarcoma
Ewing's sarcoma is a type of cancer most often found in children and young adults
and is more common in males than females.
What is the purpose of a reducing agent in a 99mTc diphosphonate kit?
(a) To oxidize technetium
(b) To lower the valence state of technetium
(c) To improve the tag efficiency (
d) Both (b) and (c)
(e) (a), (b), and (c)
d) Both (b) and (c)
Stannous chloride reduces the valence state of technetium, thereby improving
the tag efficiency.
The presence of free pertechnetate on a bone scan may be the result of:
(a) The use of a radiopharmaceutical which was prepared too long ago
(b) Introduction of air into the kit vial while adding technetium
(c) Increased blood flow to bones
(d) Both (a) and (b)
d) Both (a) and (b)
Free pertechnetate demonstrated as gastric, salivary, and thyroid activity on bone
, scans may be the result of administering a dose from a kit that has been
prepared more than 4 h prior to injection.
Additionally, if air has been introduced into the reaction vial during labeling, there
may be a poor technetium-phosphate tag
What timing protocol best describes a four-phase bone scan?
(a) During injection, immediately following injection, 2-4 h, and 18-24 h
(b) During injection, 2-4 h, 24 h, and 48 h
(c) During injection, immediately following injection, 2-4 h, and 6 h
(d) None of the above
(a) During injection, immediately following injection, 2-4 h, and 18-24 h
The fourth phase of imaging is usually completed approximately 24 h following
injection; therefore, choices (b) and (c) are incorrect.
This protocol may be necessary in patients with renal failure because soft tissue
activity may persist
See an expert-written answer!
A bone scan showing relatively uniformly increased skeletal uptake of
radiopharmaceutical with almost absent renal and bladder activity is usually
referred to as a:
(a) Flare phenomenon
(b) Superscan
(c) Renal failure
(d) Suprascan
B. Superscan
