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Test Code LABNTPBNP NT-Pro B-Type Natriuretic Peptide

Important Note

The test is intended for aiding in the diagnosis of heart failure.

Additional Codes

Test Name in EPIC EPIC Test Code
BNP LABNTPBNP

Methodology

Alinity: Chemiluminescent microparticle immunoassay (CMIA)

RAMP 200: Immunoassay (Performing sites Ada and Graceville)

Specimen Requirements

Methodology: Alinity

Specimen Type: Plasma (preferred) or Serum

Container/Tube: Lithium Heparin Plasma (Light Green Top)

Preferred Specimen Volume: 1 mL 

Minimum specimen volume: 0.5 mL

1. Hemolyzed specimen is not acceptable.

2. Remove plasma or serum from the clot, red blood cells, or separator gel if testing will be delayed more than 24 hours.

 

Methodology: RAMP 200

Specimen Type: Whole blood

Container/Tube: EDTA

Preferred Specimen Volume: 1 mL 

Minimum specimen volume: 0.15 mL

1. Hemolyzed specimen is not acceptable.

2. If patient is on nesiritide (Natrecor), wait 5 half-lives (2 hour) after infusion before drawing specimen.

3. Testing must be completed within 2 hours of phlebotomy.

4. If there is a delay in testing, the EDTA whole blood can be stored for up to 2 days at 2-8° C.

Specimen Transport Temperature

Alinity RAMP 200
Ambient up to 2 days/ Refrigerate 7 days/Frozen 1 year  Ambient 2 hours/Refrigerate up to 2 days/Frozen NO

 

Day(s) Test set Up

Monday through Sunday

Performing Laboratory - Alinity

Minnesota North Dakota Wisconsin
Deer River Hospital Lab Fargo Hospital Lab St. Mary's - Superior Hospital Lab
Fosston Hospital Lab    
Northern Pines Hospital Lab(Aurora)    
SMDC Clinical Lab (Duluth)    
St. Joseph's Medical Center Lab (Brainerd)    
St. Mary's - Detroit Lakes Hospital Lab    
Virginia Hospital Lab    

 

Performing Laboratory - RAMP 200

Minnesota
Ada Hospital Lab (RAMP 200)
Graceville Hospital Lab (RAMP 200)

Test Classification and CPT Coding

Alinity RAMP 200
ASSAY OF NATRIURETIC PEPTIDE [83880] ASSAY OF NATRIURETIC PEPTIDE [83880]

 

Reference Values

Methodology: Alinity

All Genders Age Group (years) Range (pg/mL) Interpretation
All <300 Negative : HF unlikely

18 to <50

 

50 to 75

 

> 75

>300 to <450

 

>300 to <900

 

>300 to <1800

Grayzone: Indeterminate 

Consider other causes of NT-proBNP elevation.

18 to <50

 

50 to 75

 

>75

>450

 

>900

 

>1800

Positive: HF likely

Methodology: RAMP 200

<125 pg/mL for < 75 years of age

 

<450 pg/mL for > 75 years of age