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You have a urine sample that has been refrigerated, when should you run the sample?

  1. After 24 hours of refrigeration

  2. Immediately after refrigeration

  3. Wait until it is at room temperature

  4. Refrain from running the sample

The correct answer is: Wait until it is at room temperature

When a sample is refrigerated, it should be allowed to come to room temperature before being analyzed. This is because cold temperatures can affect the results and may cause inaccurate readings. Running the sample immediately after refrigeration (option B) or after 24 hours (option A) could potentially alter the sample and lead to incorrect test results. Refraining from running the sample (option D) is also not the correct approach as it is important to analyze the sample within a reasonable time frame. Therefore, the best course of action is to wait until the sample has reached room temperature before running any tests on it.