09/05/2026
Test Your Tactical Medicine Knowledge – Question #8
Cardiac Output is a key hemodynamic measurement that helps us understand how effectively the heart is delivering blood—and therefore oxygen—to the body.
Question #8:
What is the normal Cardiac Output (CO) for an adult?
A. 2–4 L/min
B. 4–8 L/min
C. 8–12 L/min
D. 10–14 L/min
Think you know it? Comment A, B, C, or D below and share your reasoning.
Knowing normal hemodynamic ranges is only the beginning. The real challenge is recognizing when those numbers indicate that your patient is moving toward cardiovascular compromise.
We’ll reveal the correct answer next week.
Last Week’s Answer
For Question #7, we asked:
“A Cardiac Index less than ______ suggests cardiogenic shock.”
Correct Answer: B – 2.2 L/min/m²
A Cardiac Index below 2.2 L/min/m² is commonly used as a hemodynamic criterion for cardiogenic shock when accompanied by evidence of inadequate tissue perfusion. Cardiac Index adjusts cardiac output for body surface area, giving clinicians a more individualized picture of cardiac performance.
Did you get #7 right? Now it’s time to take on Question #8.