Collection Notes: After centrifugation if plasma samples are not tested within 24 hours, store samples in plastic tubes and freeze at -20°C. Ship on Dry Ice.
Clinical Utility: This test is helpful in the early diagnosis of congestive heart failure (CHF). It is used to rule out CHF as the cause of shortness of breath.
Plasma (2 mL)
EDTA
Refrigerated 24 Hours
Frozen 9 Months
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