Cozen's test
Encyclopedia
Cozen's test is a physical examination
Physical examination
Physical examination or clinical examination is the process by which a doctor investigates the body of a patient for signs of disease. It generally follows the taking of the medical history — an account of the symptoms as experienced by the patient...

 performed to evaluate for tennis elbow
Tennis elbow
Lateral epicondylitis or lateral epicondylalgia, also known as tennis elbow, shooter's elbow and archer's elbow, is a condition where the outer part of the elbow becomes sore and tender...

. It's said positive if a resisted wrist
Wrist
In human anatomy, the wrist is variously defined as 1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand;...

 extension triggers pain to the patient. The test is performed with extended elbow
Elbow
The human elbow is the region surrounding the elbow-joint—the ginglymus or hinge joint in the middle of the arm. Three bones form the elbow joint: the humerus of the upper arm, and the paired radius and ulna of the forearm....

.
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