Πώς να υπολογίσετε το Cardiac Output
Τι είναι το Cardiac Output;
Cardiac output is the volume of blood pumped per minute. It's calculated from heart rate and stroke volume, crucial for shock assessment.
Τύπος
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
Οδηγός βήμα προς βήμα
- 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
Worked Examples
Εισαγωγή
HR 100, SV 50 mL
Αποτέλεσμα
CO = 5 L/min (normal)
Normal cardiac output
Common Mistakes to Avoid
- ✕Confusing cardiac output with blood pressure
- ✕Using SV values from different populations without BSA normalization
Frequently Asked Questions
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.
Είστε έτοιμοι να υπολογίσετε; Δοκιμάστε τον δωρεάν υπολογιστή Cardiac Output
Δοκιμάστε το μόνοι σας →