Cardiac Hemodynamics Matcher

Drag the items from the grey pool into the correct Bucket below.

Cardiac Hemodynamics Reference

Term Definition Simple Concept Key Associations
Preload Wall stress at end of diastole (filling). The Stretch
Like filling a balloon with water.		 • Increases with hypervolemia & regurgitation.
• Represents volume available to pump.
Afterload Resistance ventricle must overcome. The Resistance
Like the knot at the balloon opening.		 • Increases with hypertension & stenosis.
• Approximated by MAP.
LVEDV Volume just before contraction. The Tank Full
Max volume in cycle.		 • Best proxy for Preload.
• LVEDV up = Preload up.
LVESV Volume remaining after contraction. The Leftovers
Min volume in cycle.		 • Inversely related to Contractility.
• Harder squeeze = Lower LVESV.

💡 The Math Connection

Stroke Volume (SV) = LVEDV - LVESV

Wall stress at end of diastole
Analogy: Stretching a balloon with water
Increases with Hypervolemia
Increases with Valve Regurgitation
Decreased by Nitrates (Venodilators)
Forces/Resistance ventricle must overcome
Analogy: The knot at the balloon opening
Approximated by Mean Arterial Pressure
Increases with Hypertension
Increases with Aortic Stenosis
Decreased by Hydralazine (Arteriodilators)
Volume in ventricle just before contraction
Analogy: The Tank is Full
Best clinical proxy for Preload
Max volume in the cardiac cycle
Volume remaining after contraction
Analogy: The Leftovers
Inversely related to Contractility
Increases when heart squeeze is weak

Preload

Afterload

LVEDV

LVESV

🎉 All concepts matched correctly! 🎉