First Aid

Blood Pressure & Circulation

Read Casualties: Unknown blood pressure alongside heart rate and blood volume, understand the tutorial baseline and avoid confusing a number with a diagnosis.

The First Aid course gives roughly 120/80 as normal in-game blood pressure and warns against severe extremes. Read pressure together with heart rate and blood volume; it is an outcome of several systems.

Low pressure

The course removes blood to show pressure falling and heart rate rising to compensate. That compensation has limits. Very low pressure or high heart rate can start fibrillation, which introduces another urgent problem.

This is why resetting an arrhythmia does not independently fix blood loss. Check the bleeding source and the remaining blood volume as well.

High pressure

The tutorial warns about stroke risk when hypertension becomes severe, advising against letting pressure exceed 180/120. This is a value from the game’s training, not a real-world medical recommendation or an exact guarantee that every lower reading is safe.

A useful diagnostic sequence

Read the current rate of bleeding, the affected limbs, heart rate, ECG and respiratory readings. Choose the treatment for the demonstrated cause rather than adding unrelated medicines to chase a single number.

Run modifiers can change how quickly conditions worsen. See bleeding, defibrillators and hemothorax for targeted branches of that sequence.

Sources & version notes

Reviewed against the primary sources below. Version-dependent details are identified in the article; these procedures have not been personally playtested.

Compiled from public sources. We have not personally played or tested these procedures. Check your installed build and its tooltips when details differ.