Deck 11: Long Bone Measurement

Question 1

What patient positions may be used for a long bone measurement?
1)Standing
2)Prone
3)Supine

A) 1 only
B) 2 only
C) 3 only
D) 1, 2, and 3

Answer 1

3 only

Question 2

Which long bone measurement technique requires a special single, long image receptor and uses a long SID?

A) Scanogram
B) Orthoroentgenography
C) Teleoroentgenography
D) Direct digital radiography

Answer 2

Teleoroentgenography

Question 3

Which of the following is currently the examination method of choice for long bone measurements because of its accuracy and reduced dose?

A) Conventional radiography
B) Magnetic resonance imaging
C) Computed tomography
D) Direct digital radiography

Answer 3

Computed tomography

Question 4

Which long bone measurement technique requires three separate image receptors?

A) Scanogram
B) Orthoroentgenography
C) Teleoroentgenography
D) Direct digital radiography

Question 5

What projection is used for long bone measurement radiographs?

A) PA
B) AP
C) Lateral
D) Variable depending on body habitus

Question 6

All of the following imaging modalities may be used to measure for limb length discrepancy except:

A) microdose digital radiography.
B) nuclear medicine.
C) computed tomography.
D) magnetic resonance imaging.

Question 7

How many x-ray exposures are required during a long bone measurement study?

A) Two
B) Three
C) Four
D) Six

Question 8

Long bone measurement is most frequently used on the:

A) spine.
B) upper limbs.
C) lower limbs.
D) femora only.

Question 9

Which landmark is used to localize the shoulder joint for upper limb long bone measurement?

A) Superior margin of the humeral head
B) Medial margin of the glenoid fossa
C) 1 inch inferior to the coracoid process
D) 2 inches inferior and medial to the superolateral border of the shoulder

Question 10

Which anatomic landmark is used to localize the knee joint for lower limb long bone measurement?

A) 1 inch inferior to the tibial tuberosity
B) 1 inch superior to the tibial tuberosity
C) Just below the patellar apex
D) Just above the patellar apex