learn.howToCalculate
learn.whatIsHeading
Cardiac output is the volume of blood pumped per minute. It's calculated from heart rate and stroke volume, crucial for shock assessment.
Formel
Calculate: CO = HR × SV (in mL)
- CO
- CO/BSA — CO/BSA
- HR
- HR value — Variable used in the calculation
- SV
- SV value — Variable used in the calculation
Trin-for-trin guide
- 1Calculate: CO = HR × SV (in mL)
- 2Normal CO ≈ 5 L/min; normalize to body surface area: CI = CO/BSA
- 3Normal CI ≈ 2.5-3.5 L/min/m²
Løste eksempler
Input
HR 100, SV 50 mL
Resultat
CO = 5 L/min (normal)
Normal cardiac output
Almindelige fejl at undgå
- ✕Confusing cardiac output with blood pressure
- ✕Using SV values from different populations without BSA normalization
Ofte stillede spørgsmål
What decreases cardiac output?
Decreased heart rate, decreased stroke volume (due to reduced preload, afterload, or contractility).
How is stroke volume measured?
Echocardiography, cardiac catheterization, or non-invasive methods. Not directly measured from vital signs.
Klar til at beregne? Prøv den gratis Cardiac Output-beregner
Prøv det selv →