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Test Code BNP B-Type Natriuretic Peptide

Specimen Type

Blood

Preferred Collection Container

LAV

Collection Instructions

Specimen must be a venous draw

Collection Volume

3 mL in a 5 mL tube for venipuncture specimen

Minimum Collection Volume

0.6 mL in Lavender microtainer, venous draw

Testing Volume

0.35 mL (350 ul)

Rejection Criteria

Grossly Hemolyzed; Specimen collected in anticoagulant other than EDTA; Serum; QNS samples; Improper or insufficient labeling; Whole blood specimens or plasma >7 hours old stored at room temperature; Plasma specimens >24 hours stored refrigerated; Capillary or arterial draws

Specimen Storage and Stability

Ambient – 7 hours; Refrigerated – 24 hours; Frozen – 7 days, only 1 thaw cycle

Day(s) and Time(s) Performed

Monday through Sunday, 24 hours

Alias

BNP; B-Type Natriuretic Peptide

EPIC Code

LAB106

Acceptable Collection Container

LAV (EDTA)

Additional Information

Specimens must be analyzed within 7 hours if at room temperature. Plasma specimen may be stored refrigerated and tested within 24 hours of collection. If the sample cannot be tested within 24 hours, plasma can be stored at -20 C, transport frozen plasma to NCL. DO NOT FREEZE WHOLE BLOOD. Samples that have been stored refrigerated or frozen must be at room temperature for 30 minutes before testing and be homogenized.

Transport

Ambient or Refrigerated following stability guidelines.

Turn Around Time

1 to 4 hour

Lab Department

Chemistry

CPT

83880