How much are the knees flexed when performing the Merchant method?

60 degrees
20 degrees
0 degrees
40 degrees


40 degrees

Rationale: The Merchant method is a bilateral method to image the patella in profile and the patellofemoral joints. The legs must be relaxed and flexed approximately 40 degrees off the end of the table. The beam is directed superior to inferior to pass through the patellofemoral joint space.

Health Professions

You might also like to view...

Which of the following sequences is the best method for performing a fingerstick?

A) squeeze the finger, decontaminate, puncture the skin B) decontaminate, squeeze the finger, puncture the skin, collect the first drop C) decontaminate, puncture the skin, wipe the first drop, collect the sample D) apply tourniquet, puncture the skin, wipe the first drop, collect the sample

Health Professions

STDs can be transmitted during sex by:

A) vaginal secretions. B) semen. C) blood. D) all of the above.

Health Professions

A third-party payer is an organization that processes claims for ____________________ covered by a health care plan

Fill in the blank(s) with correct word

Health Professions

What does the "A" stand for in the acronym AST?

a. Alerting b. Acid c. Airborne d. Above

Health Professions