Deck 22: Skeletal System

Question 1

In the evaluation of primary bone neoplasms, bone scans

A)are the first step in diagnosis.
B)are used to detect disease elsewhere.
C)are used instead of radiographs for diagnosis.
D)demonstrate the primary bone neoplasm as a photopenic area.

Answer 1

are used to detect disease elsewhere.

Question 2

Fluorine-18 is an analog of

A)calcium.
B)phosphorous.
C)hydroxyl.
D)technetium.

Answer 2

hydroxyl.

Question 3

A nomogram is used for

A)determining proper scan speed.
B)determining proper ID.
C)determining equal-time imagery.
D)determining sites of superimposition.

Answer 3

determining proper scan speed.

Question 4

Strontium is an analog of

A)calcium.
B)phosphorous.
C)hydroxyl.
D)technetium.

Question 5

Patients having a bone scan should be hydrated between injection and delayed imaging in order to

A)increase heterionic exchange.
B)aid clearance of the radiopharmaceutical from body.
C)aid the osseous phase of the study.
D)increase clarity of the blood pool image.

Question 6

Equal-time imaging for bone scanning refers to the technique in which

A)one area is imaged for preset counts with the time recorded and all subsequent images are taken for that same time interval.
B)third- and fourth-phase images are taken for the same time interval.
C)second- and third-phase images are taken for the same time interval.
D)parameters are set so the same amount of time is used for each image in a flow sequence.

Question 7

Accumulation of radionuclides in the bone is related to both the rate of bone production and

A)the type of bone.
B)the type of analog.
C)vascularity.
D)amount of activity.

Question 8

A bone scan image of a female patient shows radiopharmaceutical uptake in the breasts.The technologist should

A)check to see if the patient was given the correct radiopharmaceutical.
B)check for contamination.
C)consider this to be a normal variant.
D)check the patient's history of trauma to the chest.

Question 9

For lytic lesions to be seen radiographically, the loss of mineral content of the bone must be approximately

A)10%.
B)20%.
C)35%.
D)50%.

Question 10

Typically, skeletal metastatic disease has the greatest involvement in (the)

A)appendicular skeleton.
B)axial skeleton.
C)areas of synarthrosis.
D)areas of diarthrosis.

Question 11

Visualization of the kidneys on a ^99mTc-MDP scan is considered

A)abnormal, because ^99mTc-MDP is excreted via the bowel.
B)normal, because ^99mTc-MDP is excreted via the urinary tract.
C)abnormal and is indicative of calcifications.
D)rarely seen because of uptake by the vertebra.

Question 12

What are the two types of bone tissue?

A)Compact and spongy
B)Spongy and trabecular
C)Cortical and compact
D)Trabecular and cortical

Question 13

Patients having a bone scan should be encouraged to void urine frequently between injection and delayed scanning to

A)increase heterionic exchange.
B)reduce the radiation dose to the bladder.
C)aid the osseous phase of the scan.
D)decrease risk of contamination during scan.

Question 14

Metastatic lesions that have no osteoblastic activity

A)can be confused with a renal abnormality.
B)are usually detected as a photon-rich area.
C)are usually detected as a photon-deficient area.
D)often result in breast uptake.

Question 15

A patient is entering the osseous phase of a routine three-phase bone scan.The technologist should

A)prepare the room for a dynamic study.
B)begin to take blood pool images.
C)begin to take 2- to 3-hour delayed images.
D)take 5- to 24-hour delayed images.