APACHE

An acronym for Acute Physiology and Chronic Health Evaluation, a scoring system using routinely collected data and providing an accurate, objective description for a broad range of intensive care unit admissions, measuring severity of illness in critically ill patients. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.

Yes. APACHE is also referred to as Acute Physiology and Chronic Health Evaluation, APACHE I, APACHE II, APACHE III in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.

APACHE falls under the broader medical category "Analytical, Diagnostic and Therapeutic Techniques and Equipment" in the MeSH hierarchy (tree numbers: E05.318.308.980.438.475.365, E05.318.308.980.438.475.456.500.250, N05.715.360.300.800.438.375.364.500.250). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.

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