BNP / NT-proBNP
CardiacNormal range
BNP < 100 pg/mL · NT-proBNP < 300 pg/mL (age-adjusted)
☎ When to call
Escalate the clinical picture — worsening dyspnea, dropping sats, weight up 2–3 lb overnight — with the BNP as supporting data.
What you do
- Interpret with the exam: crackles, JVD, edema, orthopnea, daily weight
- Trending down with diuresis = treatment working — chart the pair (weight + BNP)
Causes of HIGH bnp / nt-probnp
Causes of LOW bnp / nt-probnp
Source: Pagana, Mosby's Manual of Diagnostic and Laboratory Tests, 7th ed.Reference only — verify against your facility's policy.
