• Thumbnail for Peak expiratory flow
    The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) and peak flow measurement, is a person's maximum speed of expiration, as measured...
    11 KB (1,251 words) - 12:49, 2 November 2024
  • Thumbnail for Spirometry
    MMEF or MEF stands for maximal (mid-)expiratory flow and is the peak of expiratory flow as taken from the flow-volume curve and measured in liters per...
    30 KB (3,455 words) - 15:09, 2 November 2024
  • Thumbnail for Asthma
    according to the frequency of symptoms of forced expiratory volume in one second (FEV1), and peak expiratory flow rate. It may also be classified as atopic or...
    172 KB (18,620 words) - 04:22, 17 May 2025
  • expiratory phase, or may be quite normal. Consequently, a potential for under-diagnosis exists. Measurement of airflow, such as peak expiratory flow rates...
    19 KB (2,192 words) - 21:06, 3 December 2024
  • Thumbnail for FEV1/FVC ratio
    the point of measurement.) PEF Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter MVV Maximal voluntary ventilation:...
    6 KB (635 words) - 16:22, 4 September 2024
  • menstrual cycles along with asthma symptoms experienced, and the peak expiratory flow rate (PMA may cause the PEF to be lowered in the premenstrual period)...
    13 KB (1,609 words) - 16:07, 14 January 2025
  • Thumbnail for Lung volumes and capacities
    also causes a decreased total lung capacity (TLC) by 5% and decreased expiratory reserve volume by 20%. Tidal volume increases by 30–40%, from 0.5 to 0...
    13 KB (1,281 words) - 18:46, 17 January 2025
  • Thumbnail for Pulmonary function testing
    lung volumes are tidal volume (VT), inspiratory reserve volume (IRV), expiratory reserve volume (ERV), and residual volume (RV). The four lung capacities...
    17 KB (2,090 words) - 13:42, 2 November 2024
  • Thumbnail for Chronic obstructive pulmonary disease
    the alveoli, as well as damage to the capillary bed. Testing the peak expiratory flow (the maximum speed of expiration), commonly used in asthma diagnosis...
    154 KB (16,651 words) - 04:16, 14 May 2025
  • Thumbnail for Dust storm
    Hwan; Ju, Young-Su (2005). "Effects of ambient particulate matter on peak expiratory flow rates and respiratory symptoms of asthmatics during Asian dust periods...
    21 KB (2,284 words) - 14:15, 17 May 2025
  • Thumbnail for Tidal volume
    the point of measurement.) PEF Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter MVV Maximal voluntary ventilation:...
    5 KB (556 words) - 09:28, 15 August 2024
  • Thumbnail for Brittle asthma
    on the stability of the patient's maximum speed of expiration, or peak expiratory flow rate (PEFR). Type 1 is characterized by a maintained wide PEF variability...
    7 KB (751 words) - 21:33, 2 January 2024
  • presence of expiratory phase wheezing signifies that the patient's peak expiratory flow rate is less than 50% of normal. Wheezing heard in the inspiratory...
    10 KB (1,237 words) - 12:19, 2 January 2025
  • stand for the following abbreviations: Palestine Exploration Fund Peak expiratory flow PEF Private University of Management Vienna Pentax raw file (see...
    934 bytes (141 words) - 13:38, 1 May 2023
  • Thumbnail for Biofeedback
    "Heart rate variability biofeedback increases baroreflex gain and peak expiratory flow". Psychosomatic Medicine. 65 (5): 796–805. doi:10.1097/01.psy.0000089200...
    131 KB (15,446 words) - 17:07, 24 April 2025
  • (chemotherapy regimen) PEEP positive end-expiratory pressure PEF peak expiratory flow PEFR peak expiratory flow rate PEG percutaneous endoscopic gastrostomy...
    15 KB (66 words) - 19:37, 10 April 2025
  • pulmonary function testing which shows a characteristic reduction in peak expiratory flow (PEF), physical examination, and imaging such as computed tomography...
    11 KB (1,017 words) - 16:41, 28 April 2024
  • The peak expiratory flow can be measured at the bedside; in acute severe asthma, the flow is less than 50% of a person's normal or predicted flow. Very...
    14 KB (1,566 words) - 12:49, 22 September 2024
  • Thumbnail for Minute ventilation
    can be viewed as a unit of volume, it is usually treated in practice as a flow rate (given that it represents a volume change over time). Typical units...
    5 KB (567 words) - 17:35, 11 September 2024
  • help diagnose asthma. A peak flow meter is a hand-held device which measures how fast a person can exhale – peak expiratory flow rate (PEFR) – and is a...
    26 KB (2,287 words) - 13:00, 23 March 2025
  • Microsoft Maximum Elevation Figure (flying) Maximal expiratory flow, another name for peak expiratory flow in spirometry Medial eye fields Metro Ethernet Forum...
    2 KB (271 words) - 00:23, 21 July 2024
  • Thumbnail for Asian Dust
    and Japan focused on respiratory function performance by measuring peak expiratory flow. These studies found that individuals with respiratory diseases such...
    26 KB (3,198 words) - 20:12, 29 April 2025
  • Thumbnail for Fitness to dive
    COPD, all of which are contraindications for diving. Sometimes only peak expiratory flow (PEF) is measured, which uses a much simpler apparatus, but is still...
    90 KB (9,982 words) - 18:52, 7 May 2025
  • JR (1993). "Mechanical insufflation-exsufflation. Comparison of peak expiratory flows with manually assisted and unassisted coughing techniques". Chest...
    13 KB (1,422 words) - 06:20, 16 February 2025
  • pressure (called continuous lung-distending pressure) through an adjustable expiratory valve.  Small pressure oscillations delivered at a very high rate are...
    24 KB (2,970 words) - 18:00, 11 May 2025
  • to 85% of asthma exacerbations that were associated with reduced peak expiratory flow rates and wheezing were due to viral upper respiratory tract infections...
    21 KB (2,706 words) - 15:24, 13 May 2025
  • Thumbnail for Dual-control modes of ventilation
    will use the exhaled tidal volume measured at the end of that breath's expiratory phase to calculate the pressure of the next breath. If the exhaled tidal...
    3 KB (460 words) - 05:32, 12 July 2021
  • linear density ISO 23747:2015 Anaesthetic and respiratory equipment – Peak expiratory flow meters for the assessment of pulmonary function in spontaneously...
    30 KB (3,687 words) - 17:19, 22 June 2024
  • microlax, Manual decompaction of faeces, Ophthalmoscopy, Otoscopy, Peak expiratory flow rate measurement, PEG management, Rectal prolapse reduction, Urinary...
    18 KB (1,729 words) - 06:46, 7 March 2025
  • positive flow to the start of negative flow. Expiratory time is defined as the period from the start of expiratory flow to the start of inspiratory flow. The...
    43 KB (5,319 words) - 10:34, 17 May 2025