How to make a clinical flowchart or decision algorithm

A good clinical algorithm turns a complex management path into something you follow with a finger. It's the kind of figure that becomes an on-call reference. Describe the scenario and thresholds and get a clean, publication-ready decision flowchart.

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Perioperative fluid management algorithm with decisions and thresholds
Decision flow for the hypotension prediction index
VExUS grading matrix used in clinical management

What a clinical algorithm is

It's a decision flowchart: a trigger at the top, a sequence of decisions (diamonds) with real quantitative criteria, and management boxes at the end of each branch. Yes/no arrows guide the reader down the right path, and 'reassess' loops show that management is dynamic.

What a good algorithm needs

A clear vertical decision spine, real thresholds inside the diamonds (e.g. 'MAP < 65 mmHg', 'lactate > 2 mmol/L'), colors by role (trigger, decision, action, escalation, stop), and labeled branches. Even spacing and short headers — the reader has to find their case instantly.

Mistakes that kill an algorithm's usefulness

Vague criteria ('if stable…') instead of thresholds; unlabeled branches; too many boxes with no hierarchy; and no reassessment point. An algorithm exists to be followed under pressure — if it creates doubt, it fails its job.

  1. 1
    Describe the scenario and thresholds

    e.g. "intraoperative hypotension management: trigger MAP < 65, check volume (PPV > 13%), then vasopressor, reassess".

  2. 2
    The assistant builds the flow

    It constructs the decision spine, the diamonds with your thresholds, colors by role, and reassessment loops. You review it before spending a credit.

  3. 3
    Generate and export

    Get it in seconds and download PNG, TIFF 300 DPI, or PDF — for the paper, the protocol, or the on-call poster.

Build your clinical algorithm now

Describe the scenario and thresholds and get a publication-ready decision flowchart. No subscription — pay only for what you use.

Start a new figure