BNP

CHEMISTRY

BNP

BRAIN NATRIURETIC PEPTIDE

WHOLE BLOOD OR PLASMA-Specimen Stability

1-2 MLS

IF BNP AND CBC ARE ORDERED TOGETHER PLEASE DRAW 2 LAVENDER TOP TUBES.

PLASTIC TUBE

2-8 c REFRIGERATED, PLASMA OR WHOLE BLOOD good for 24hrs.
Frozen (Plasma only) good for 3 Months.
Room Temp is only stable for 4hrs.  Plasma or Whole Blood

WHOLE BLOOD OR PLASMA SAMPLE IS STABLE AT ROOM TEMPERATURE FOR 4 HOURS,
REFRIGERATED(WHOLE BLOOD, OR PLASMA)IS STABLE FOR 24 HOURS, AND 
FROZEN PLASMA SAMPLE IS STABLE FOR 3 MONTHS.(PLASMA ONLY)

IF SAMPLE CANNOT BE DELIVERED TO THE LAB WITHIN 4 HOURS, IT MUST BE 
REFRIGERATED 2-8 DEGREES WHERE IT IS GOOD FOR 24HRS.
IF SAMPLE IS GOING TO BE DELAYED GREATER THAN 24HR THE PLASMA SAMPLE CAN
BE FROZEN AND SENT TO LAB.  FROZEN PLASMA IS GOOD FOR 3 MONTHS.

** BOTH WHOLE BLOOD AND PLASMA SAMPLES ARE STABLE FOR 24HRS 
IF REFRIGERATED.***

**Rejection will happen if the above criteria is not followed.
 
EXTRA LABEL PROVIDED

Unlabeled sample, improper temperature during transport. Wrong sample collection. Sample unspun before transport.

DAILY

DAILY

5-100 pg/mL : Normal, CHF unlikely 100-400 pg/mL : Abnormal, patients with LV dysfunction >400 pg/mL: CHF likely

Plasma BNP levels provide clinically useful information concerning the diagnosis and management of left ventricular dysfunction and heart failure, which complements other diagnostic testing procedures (e.g.. electrocardiograms, chest x-rays, and echocardiograms). Elevated levels of BNP in heart failure patients predict disease progression and increased morbidity and mortality. Acute coronary syndrome (ACS) patients with increased BNP levels have a higher rate of cardiac complications and higher mortality post myocardial infarction.