The faster the better. Samples degrade over time. We suggest mailing back the same day or the following.
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We recommend mailing your smaple out on Monday or Thursday. The lab is closed over the weekend.
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If you are mailing a CBC test back to us – it’s critical that you send it as instructed.
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Your sample (not the CBC) will stay good for up to 30 days at temperatures of 70-79 degrees fahrenheit. If you have something come up and you can’t mail it within a couple days – you can place it somewhere cool (like a fridge) to help preserve your sample.
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Glucose is the first to degrade if a sample does break down due to delays. If it breaks down it will be reported as a TNP (test not performed).