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NT-Pro B-type Natriuretic Peptide (Pro-BNP)

Test Name:NT-Pro B-type Natriuretic Peptide (Pro-BNP)
Epic Order Code:LAB5099  
CPT Code:83880  
Specimen(s) Type:Plasma or Serum; 0.5 mL
Acceptable Container(s):Tops are light green and gold.
Testing Schedule:24 hrs/day, 7 days/week
Turn Around Time:STAT: 1 hour  
 Routine: 2 hours  
Collection Information:No special patient preparation is required. Collect specimens by standard phlebotomy procedures.
Transport Information:Deliver to lab immediately. All specimens must be signed into the laboratory.
Reference Clients:If unable to deliver to the lab within 1 hour, centrifuge the specimen and remove plasma/serum from the red cells. Store and transport at 2-8° C. Specimen must be received in the lab within 24 hours.
Causes for Rejection:Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport.
Reference Range:12 - 150 pg/ml
Additional Information:Manufacturer Suggested Rule-out Cutpoints (99% sensitivity, 100% negative predictive value*):
 Age <75:125 pg/mL 
 Age > or 75:450 pg/mL 
 *Januzzi, et al, found similar results using a single age-independent exclusionary cutpoint of 300 pg/mL.