Analytical, Diagnostic and Therapeutic Techniques, and Equipment

Maximal Midexpiratory Flow Rate

Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

11 entry terms
  • FEF 25-75 Percent
  • Flow Rate, Maximal Midexpiratory
  • Forced Expiratory Flow 025-075 Percent
  • MMFR
  • 25-75 Percent, FEF
  • 25-75 Percents, FEF
  • FEF 25 75 Percent
  • FEF 25-75 Percents
  • Forced Expiratory Flow 025 075 Percent
  • Percent, FEF 25-75
  • Percents, FEF 25-75

MeSH Record

Aspects Covered

6 allowable subheadings

Indexed with the subheadings drug effects, ethics, genetics, immunology, physiology, radiation effects.

MeSH Record

Indexing Annotation

usually NIM; do not confuse with MAXIMAL EXPIRATORY FLOW RATE; (MEFR)

MeSH Record

History Note

91(75); was see under FORCED EXPIRATORY FLOW RATES 1975-90

MeSH Hierarchy

Tree Numbers

  1. E01w.370.386.700w.660.225.510
  2. G09.772.650.300.670

AMA Style

References

  1. National Library of Medicine. Maximal Midexpiratory Flow Rate. Medical Subject Headings (MeSH). 2026. Unique ID D008450. http://id.nlm.nih.gov/mesh/2026/D008450
  2. Maximal Midexpiratory Flow Rate. In: Wikidata. https://www.wikidata.org/wiki/Q70679650