Certified Hand Therapist (CHT) Exam 2025 – 400 Free Practice Questions to Pass the Exam

Allen's test specifically evaluates the arterial supply to the hand. It is a clinical test that assesses the patency of the radial and ulnar arteries, which are essential for adequate blood flow to the hand. During the procedure, the clinician has the patient make a fist to empty the blood from the hand, then compresses both the radial and ulnar arteries to occlude blood flow. Once the patient opens their hand, the clinician releases one artery at a time and observes the filling of the hand with blood. The speed and quality of the refill indicate how well each artery can supply blood to the hand.

This assessment is particularly important in hand therapy, as it helps determine the viability of tissue and the risk of ischemia, especially prior to surgical procedures or interventions that might affect blood flow. If one of the arteries is compromised, it can lead to inadequate blood supply, which can complicate recovery and healing.

The other options focus on different aspects of hand function. While nerve function and muscle strength are critical for hand functionality, Allen's test does not directly examine these parameters. Similarly, joint stability pertains to the integrity of the joints and the surrounding structures, which is unrelated to the vascular assessment provided by Allen's test. Thus, the primary