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What is an expected outcome for a client receiving sumatriptan?

  1. Reduced cough.

  2. Diminished headache.

  3. Relaxed muscles.

  4. Decreased peripheral edema.

The correct answer is: Diminished headache.

When a client is receiving sumatriptan, the expected outcome is diminished headache, particularly in the context of treating acute migraine attacks. Sumatriptan belongs to a class of medications known as triptans, which are specifically designed to alleviate the symptoms of migraines by targeting serotonin receptors in the brain. This action leads to the constriction of dilated blood vessels and reduces inflammation, ultimately providing relief from headache symptoms. While reduced cough, relaxed muscles, and decreased peripheral edema are significant clinical outcomes relevant to other medications or conditions, they do not pertain to the action or effects of sumatriptan in treating migraines. Therefore, diminishment of headache represents the most accurate outcome for a client undergoing treatment with this medication.