Cardiac Markers
Normal range < 125 (age < 75); < 450 if older pg/mL (< 125 ng/L SI). Specimen: Plasma or serum.
Also known as: N-terminal proBNP.
This result is reported qualitatively or as a one-sided threshold rather than a two-sided numeric band.
| Specimen | Plasma or serum |
|---|---|
| Conventional range | < 125 (age < 75); < 450 if older pg/mL |
| SI range | < 125 ng/L |
| Conversion factor | ×1 (conventional → SI) |
| Panel | Cardiac Markers |
Convert any NT-proBNP result between units on the unit converter.
The standard teaching reference range for NT-proBNP is < 125 (age < 75); < 450 if older pg/mL in conventional units, or < 125 ng/L in SI units. This value is measured in plasma or serum.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.
Above the range
Below the range
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