When is refrigeration (2-8 C) generally required for specimens?

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Multiple Choice

When is refrigeration (2-8 C) generally required for specimens?

Explanation:
Stability of the specimen drives how you handle it. Refrigeration at 2-8 C slows down changes that can alter test results, so it’s used to preserve samples when there will be a delay before testing. The usual rule is to refrigerate if you can’t test promptly, unless the test request or lab protocol specifies a different handling condition. This isn’t required for all specimens—some are stable at room temperature for a period, and some require other handling instructions—and it’s not limited to urine samples, since many specimen types benefit from cold storage if processing will be delayed.

Stability of the specimen drives how you handle it. Refrigeration at 2-8 C slows down changes that can alter test results, so it’s used to preserve samples when there will be a delay before testing. The usual rule is to refrigerate if you can’t test promptly, unless the test request or lab protocol specifies a different handling condition. This isn’t required for all specimens—some are stable at room temperature for a period, and some require other handling instructions—and it’s not limited to urine samples, since many specimen types benefit from cold storage if processing will be delayed.

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