Proper maintenance of ultrasound equipment between use for each patient is important to prevent which of the following?
A 30-year-old female patient with rheumatoid arthritis reports pain at the medial malleolus. The medial side of the ankle is tender and seems to be swollen. How should a practitioner interpret the transverse images at the medial malleolus?

What is the position of the arm MOST likely used to obtain this B-Mode image of the shoulder?

Which of the following images is MOST suggestive of sonographic features of patients with spondyloarthropathy?




Which carpal bone is visualized medially to the ulnar nerve on a transverse scan of the wrist at the level of the distal wrist crease?
In performing an in-plane ultrasound-guided procedure, it is helpful to orient the transducer so that the:
A practitioner obtains the following ultrasound image of a patient with a positive rheumatoid factor and normal ESR, CRP, and hand X-rays.

Which of the following options would be an evidence-based statement during a discussion of the management plan?
An 83-year-old female with a medical history of congestive heart failure, critical aortic stenosis, end-stage renal disease, and morbid obesity presents to the office with a complaint of right knee pain for two years. The pain is worse with activity and better with rest. She notes no redness, warmth, or swelling in the joint, with no other joints being painful. A physical examination reveals crepitus in the right knee with medial and lateral joint line tenderness of the left knee. X-rays of the right knee from six months ago are consistent with severe tricompartmental osteoarthritis. Due to morbid obesity, visualization of bony landmarks is not possible and the decision is made to proceed with an ultrasound-guided knee injection with a hyaluronic acid derivative.
Prior to injection, where should the needle tip be visualized?

This ultrasound image from a 60-year-old woman with knee pain is MOST suggestive of which of the following?

Which of the following is the MOST appropriate next step to confirm the presence of pathology in this metacarpophalangeal joint?
