How long can a urine specimen sit on the counter before refrigeration is required?

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Multiple Choice

How long can a urine specimen sit on the counter before refrigeration is required?

Explanation:
Preserving urine sample integrity relies on limiting changes that occur at room temperature. Bacteria in urine can multiply and enzymes can alter drug/metabolite concentrations and pH, which can skew test results. To keep results accurate, refrigerate the specimen if it won’t be tested within about one hour of collection. If testing can be done within that hour, refrigeration isn’t yet required.

Preserving urine sample integrity relies on limiting changes that occur at room temperature. Bacteria in urine can multiply and enzymes can alter drug/metabolite concentrations and pH, which can skew test results. To keep results accurate, refrigerate the specimen if it won’t be tested within about one hour of collection. If testing can be done within that hour, refrigeration isn’t yet required.

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