Renin Activity RENIN
|Method(s)||Quantitative Enzyme-Linked Immunosorbent Assay|
One 3 mL lavender (EDTA) top tube. Also acceptable: One pink (K2EDTA) top tube. Do not collect in refrigerated tubes.
2 mL plasma, frozen. (Min: 1.2 mL). Separate from cells ASAP or within 2 hours of collection and freeze immediately - CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Collect midmorning after patient has been sitting, standing or walking for at least 2 hours and seated for 5-15 minutes. Refer to the Additional Technical Information for specific patient preparation recommendations.
Collection to initiation of testing: Ambient: 6 hours; Refrigerated: Unacceptable; Frozen: 1 month.
Serum. Specimens collected in heparin, citrate or oxalate. Hemolyzed specimens.
CRITICAL FROZEN. Separate samples must be submitted when multiple tests are ordered. DO NOT refrigerate. DO NOT collect in refrigerated tubes. If an upright sample is collected, patient should be upright (seated or standing) for at least two hours.
|Preferred Specimen Collection Device(s)|