Methodology
Chemiluminescent Microparticle Immunoassay (CMIA)
Synonyms
NT-proBNP; ProBNP
Specimen Type
Plasma or Serum
Performing Lab
RCHSD Chemistry
Epic ID
LAB10601
Lab Test Days
Daily
Standard TAT
1 Hour
Collection Information
Specimen Required
1 mL Blood
Container Type
Lithium Heparin (Light Green-Top) Tube (PST)
Collection Instructions
Plasma collected in an EDTA (Lavender-Top) tube or Serum collected in a gold serum separator tube (SST) or red-top tube is also acceptable.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Ambient-OK
Specimen Stability
Room Temp: 48 Hours; Refrigerated: 3 Days; Frozen: 30 Days
Rejection Criteria
Heat-inactivated specimens; Pooled specimens; Grossly hemolyzed specimens; Specimens with obvious microbial contamination; Specimens with fungal growth
Test Volume Required
0.5mL Plasma or Serum
Minimum Test Volume
0.25 mL Plasma or Serum
Processing Instructions
Separate plasma or serum and deliver to Chemistry.
CPT Codes
83880
Revised
1/22/26
Initials
SA