About this content

How scenarios are written

Each scenario is a hand-written chain of cause and effect, not a computer simulation. Every step is stored as data with two explanations: one in plain systems language (pumps, filters, controllers, coping loops) and one in medical terms. Every step cites at least one textbook or clinical guideline.

How they are checked

A scenario is published only after a qualified clinician has reviewed it. The review is tied to a fingerprint of the exact text the reviewer read, so any later change has to be reviewed again before it can go live.

What they cannot tell you

• Each scenario follows one illustrative course of events. Real outcomes vary widely, and modern treatment often changes them a great deal.
• Times on the clock are approximate and chosen to show the order of events.
• Nothing here describes a particular person. If you are worried about your own or someone else's health, talk to a doctor or nurse.

What we measure

To learn whether the explainer is useful, the published site counts page visits, how far readers get through a scenario and how long the page is in active use. It uses a cookieless analytics service: no cookies, no account, nothing that identifies you and nothing about your health. If your browser sends Do Not Track or Global Privacy Control, nothing is counted.

Review status