Free Tool

The free cath lab hemodynamics simulator

Every pressure waveform you'll read in the cath lab — RA, RV, PA, wedge, LV, and aorta — rendered live and time-locked to the ECG, the way the monitor actually shows them. Measure the waves, run the pullbacks, and learn to read pressures the way the room demands. Free, in your browser.

The hemodynamics simulator showing a labeled left-atrial pressure waveform — a wave, v wave, and x and y descents — above a live ECG

One idealized, labeled beat above a live bedside monitor — every wave tied to the ECG.

Hemodynamics is where a lot of cardiovascular techs get stuck. A pressure tracing on a page is static and abstract; a waveform moving under the sweep, tied to the ECG, is what you actually have to read at the table. This simulator teaches the second one.

What it does

What's free, and what's premium

Free: the normal waveforms and the pullback sequences — everything you need to learn to read a normal cath lab study cold. Premium: the pathology library — pulmonary hypertension subtypes (pre-, post-, and combined-capillary) and shunts (ASD, VSD, PDA), where the waveforms tell the diagnosis.

Who it's for

New cath lab techs

Hemodynamics is one of the hardest things to learn from a book. Build real recognition before you're running the monitor during a case.

RCIS candidates

Hemodynamics and pressure measurement are core exam domains. Drill the waveforms until they're automatic.

Monitor-seat trainees

The monitor tech reads the pressures and calls the transitions. This is that skill, practiced safely.

Educators

A live teaching tool for the waveform lecture — far better than static figures on a slide.

Read your first pullback right now.

Open the simulator, pick a chamber, press start. Free, no signup, in your browser.

Launch the simulator

Part of a bigger pathway

The hemodynamics simulator pairs with our ECG Foundations and Cath Lab Foundations programs — rhythm first, then pressures, then the room. Start free here; go deep when you're ready. For a written companion, the free Cath Lab Field Guide covers the normal pressures and the six core waveforms on a few pages.

Questions

Is it really free?
Yes — the normal waveforms and the pullback sequences are free to use in your browser, no signup. The pathology library (pulmonary hypertension and shunts) is part of the premium version.
Do I need to install anything?
No. It runs in any modern browser on desktop or mobile. Just launch it.
Does it help with the RCIS?
Hemodynamics and pressure measurement are core RCIS domains, and the simulator is built around exactly those waveforms. It's strong preparation — not a substitute for CCI's official materials.
Can our lab use it for teaching?
Absolutely — it's built for it. For structured, competency-tracked training across a team, see Cath Lab Foundations or book a call.