Look at the patient’s blink rate. If a patient is truly bradykinetic or parkinsonian, his or her blink rate will be decreased. If this is due to psychiatric depression or psychogenic movement disorder, then the blink rate will be normal.—DIANA FERMAN, PA-C, Los Angeles, Calif. (205-3)

These are letters from practitioners around the country who want to share their clinical problems and successes, observations and pearls with their colleagues. We invite you to participate. If you have a clinical pearl, submit it here.

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