Forced Expiratory Flow Rates
| Definition: |
The rate of airflow measured during a FORCED VITAL CAPACITY determination. |
| Notes: |
GEN or unspecified; prefer specifics; do not confuse with FORCED EXPIRATORY VOLUME, a specific test of pulm ventilation; usually NIM |
| Previously Indexed: |
Respiratory Airflow (1971-1974),Spirometry (1966-1974) |
Forced Expiratory Flow Rates Categories.
 |
Maximal Expiratory Flow Rate - The airflow rate measured during the first liter expired after the first 200 ml have been exhausted during a FORCED VITAL CAPACITY determination. Common abbreviations are MEFR, FEF 200-1200, and FEF 0.2-1.2. |
|
Maximal Expiratory Flow-Volume Curves - Curves depicting MAXIMAL EXPIRATORY FLOW RATE, in liters/second, versus lung inflation, in liters or percentage of lung capacity, during a FORCED VITAL CAPACITY determination. Common abbreviation is MEFV. |
|
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%. |
|
Peak Expiratory Flow Rate - Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR. |
Forced Expiratory Flow Rates Definitions and Terms
MedicalGlossary.org is designed as a free, browsable resource for all. The medical terms and definitions are not intended to replace medical informaion provided by licensed healthcare professionals. Please see a doctor if you need medical assistance. Don't see the medical term you were researching? Send us an e-mail from our "about us" page. We will do our best to research and classify new medical terms in a timely manner. Our current list of medical terms is over 26,000. Data sources include the U.S. National Library of Medicine, 2004 Medical Subject Headings.
|
