Question

question 16 (2.5 points)
a patient on estrogen replacement therapy (ert) receives a dxa study of the hips. what is the cpt® code reported for the bone density study?
77080
77077
77081
77078

question 17 (2.5 points)
what x-ray projection enters the front of the body and exits through the back of the body with the patient lying down on the back?
pa
oblique
lateral
ap

Explanation:

Identify CPT code for axial DXA scan

Using the Bone Density Coding and DXA Scan Coding knowledge points

• The patient receives a dual-energy X-ray absorptiometry (DXA) study of the hips.
• The hips represent an axial skeleton site.
• CPT code 77080 is designated for dual-energy X-ray absorptiometry (DXA), bone density study, 1 or more sites; axial skeleton (e.g., hips, pelvis, spine).
• Therefore, the correct CPT code is 77080.

Identify X-ray projection from front to back

Using the Anteroposterior Projection knowledge point

• The question describes an X-ray beam entering the front (anterior) of the body and exiting the back (posterior).
• This path is defined as an anteroposterior (AP) projection.
• Therefore, the correct projection is AP.

Answer:

Question 16

• (A) 77080 (Correct answer)
• (B) 77077
• (C) 77081
• (D) 77078

Question 17

• (A) PA
• (B) Oblique
• (C) Lateral
• (D) AP (Correct answer)