Serum Separator Tube (SST) prefered Green, Lithium Heparin, also acceptable
Refrigerated
3 days at 20-25 °C 6 days at 2-8 °C
Daily
Same day
Chemistry
Immunoassay
Males:
Females:
Age < 50 years: < 450 pg/mL acute heart failure unlikely Age 50 -75 years: < 900 pg/mL acute heart failure unlikely Age > 75 years: < 1800 pg/mL acute heart failure unlikely
83880