The National Committee for Clinical Laboratory Standards (NCCLS) provides the following recommendations for storing blood specimens:
– Store samples at 22°C (72° F) for no longer than 8 hours.
–If the assay will not be completed within 8 hours, refrigerate the sample at 2–8 °C (36–46 °F).
–If the assay will not be completed within 48 hours, or for shipment of samples, freeze at or below –20 °C (-4 °F).
•Samples are not to be repeatedly frozen and thawed because this can cause analyte deterioration. Samples are to be thawed only once.
The National Committee for Clinical Laboratory Standards (NCCLS) provides the following recommendations for storing blood specimens:
– Store samples at 22°C (72° F) for no longer than 8 hours.
–If the assay will not be completed within 8 hours, refrigerate the sample at 2–8 °C (36–46 °F).
–If the assay will not be completed within 48 hours, or for shipment of samples, freeze at or below –20 °C (-4 °F).
•Samples are not to be repeatedly frozen and thawed because this can cause analyte deterioration. Samples are to be thawed only once.