Certified Healthcare Safety Professional (CHSP) Practice Exam

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What is Trigger Finger?

A condition of arthritis in the finger
A condition where finger flexors contract but can't extend due to a nodule
A fracture of the finger bones
A skin condition affecting the fingers

The correct answer is: A condition where finger flexors contract but can't extend due to a nodule

Trigger Finger, also known as stenosing tenosynovitis, is characterized by a specific mechanism that affects the finger flexors. In this condition, the tendons that flex the fingers develop a nodule or thickening, which causes the tendon to catch or lock when it moves through the sheath that encases it. As a result, the finger may become stuck in a bent position and may suddenly pop straight, resembling a trigger being released on a gun. This phenomenon emphasizes the core aspect of Trigger Finger, which is the inability to extend the finger despite the contraction of the flexor muscles. Recognizing this mechanism is crucial for understanding the functional limitations posed by Trigger Finger compared to simply referring to it as a condition of arthritis, a fracture, or a skin issue. While these alternative options describe different medical issues, they do not capture the unique locking and catching action of the tendons involved in Trigger Finger.