Fick Cardiac Output

Fick Principle: The gold standard for measuring cardiac output based on oxygen consumption and arteriovenous oxygen difference.

VO₂ (mL/min)

Art O₂ (mL/L)

Ven O₂ (mL/L)

Guidelines & Evidence

Verified

Last Review: 2026-07-17

When to Use

Evaluation of hemodynamics during Right Heart Catheterization (RHC).

Quantification of cardiac output (CO) and cardiac index (CI).

Assessing shock states and guiding inotropic/vasopressor therapy.

Last Comprehensive Review: 2026-07-17

Guidelines & Evidence

Verified

Last Review: 2026-07-17

When to Use

Evaluation of hemodynamics during Right Heart Catheterization (RHC).

Quantification of cardiac output (CO) and cardiac index (CI).

Assessing shock states and guiding inotropic/vasopressor therapy.

Last Comprehensive Review: 2026-07-17

Recent Journal Updates

JAMAJul 21, 2026

Errors in Figures

Clinical Context

We think this might be relevant to the clinical guidance for Fick Cardiac Output.

WHO NewsJul 20, 2026

Road deaths fall by 21% globally but stronger action is needed to save lives

Clinical Context

We think this has broad domain relevance to Fick Cardiac Output.

WHO NewsJul 15, 2026

New WHO guidelines: up to 45% of dementia risk could be prevented or delayed

Clinical Context

We think this has broad domain relevance to Fick Cardiac Output.

Fick Cardiac Output

When to Use

When to Use

How it Works

The Fick Principle

Formula

Clinical Pearls

Estimated vs. Measured VO2

Next Steps

Complementary Calculators

The Evidence

Foundational Principle

Uber die Messung des Blutquantums in den Herzventrikeln.

When to Use

When to Use

How it Works

The Fick Principle

Formula

Clinical Pearls

Estimated vs. Measured VO2

Next Steps

Complementary Calculators

The Evidence

Foundational Principle

Uber die Messung des Blutquantums in den Herzventrikeln.

Recent Journal Updates

Fick Cardiac Output

When to Use

When to Use

How it Works

The Fick Principle

Formula

Clinical Pearls

Estimated vs. Measured VO2

Next Steps

Complementary Calculators

The Evidence

Foundational Principle

Uber die Messung des Blutquantums in den Herzventrikeln.

When to Use

When to Use

How it Works

The Fick Principle

Formula

Clinical Pearls

Estimated vs. Measured VO2

Next Steps

Complementary Calculators

The Evidence

Foundational Principle

Uber die Messung des Blutquantums in den Herzventrikeln.

Recent Journal Updates