Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

423
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
423
Pipe Flowrate Measurement01:28

Pipe Flowrate Measurement

790
In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
790
Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

390
Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
390

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Functional Engineering of Bioactive Peptides: Chemical Modifications and Synthetic Biology Approaches.

International journal of molecular sciences·2026
Same author

Measurement agreement between a portable and a conventional impulse oscillometry system: a two-centre method-comparison study.

BMJ open respiratory research·2026
Same author

How artificial intelligence could improve the diagnosis and management of COPD: a perspective from GOLD.

American journal of respiratory and critical care medicine·2026
Same author

Rice-Derived Peptides Exhibit Wound Healing Properties in Human Keratinocytes: Screening, Identification, and Mechanism Revelation.

Plant foods for human nutrition (Dordrecht, Netherlands)·2026
Same author

Corrigendum to "Injectable hydrogel for postoperative synergistic photothermal-chemodynamic tumor and anti-infection therapy" [Biomaterials 280(2022) 121289].

Biomaterials·2026
Same author

An intelligent evaluation model for spirometry quality using wavelet and deep time-series methods.

Physiological measurement·2026

Related Experiment Video

Updated: Aug 31, 2025

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

5.7K

Performance testing for different peak expiratory flow meters.

Zhongping Wu, Ruibo Huang, Liping Zhong

    Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
    |August 21, 2022
    PubMed
    Summary

    Peak expiratory flow meters (PEFMs) show variable technical performance, with only 16.67% meeting all criteria. Quality control is needed to ensure accurate respiratory disease monitoring.

    Keywords:
    ISO 23747:2015Peak expiratory flow meterquality controlstandard flow/volume simulator

    More Related Videos

    Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
    08:44

    Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies

    Published on: February 2, 2024

    819
    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
    08:47

    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

    Published on: March 3, 2023

    2.5K

    Related Experiment Videos

    Last Updated: Aug 31, 2025

    Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
    06:11

    Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

    Published on: February 9, 2022

    5.7K
    Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
    08:44

    Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies

    Published on: February 2, 2024

    819
    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
    08:47

    Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

    Published on: March 3, 2023

    2.5K

    Area of Science:

    • Respiratory Medicine
    • Medical Device Engineering
    • Quality Control

    Background:

    • Peak expiratory flow meters (PEFMs) are crucial for diagnosing and monitoring respiratory conditions like asthma and COPD.
    • The performance of PEFMs directly influences the accuracy of disease evaluation.

    Purpose of the Study:

    • To evaluate the technical performance of commonly used mechanical and electronic PEFMs in clinical settings.
    • Assessing key performance metrics including accuracy, repeatability, and linearity.

    Main Methods:

    • Tested 12 PEFM brands (5 electronic, 7 mechanical) using a standard flow/volume simulator.
    • Evaluated performance against ISO 23747:2015 standards with defined A-waveforms and B-waveforms.
    • Measured accuracy, repeatability, airflow resistance, frequency response, and linearity.

    Main Results:

    • Overall pass rates: Accuracy 41.67%, Repeatability 75.00%, Linearity 50.00%, Airflow Resistance 75.00%, Frequency Response 25.00%.
    • Only 16.67% of PEFMs met all evaluated criteria; others partially met them.
    • PEFMs demonstrated poor accuracy but good repeatability, with most errors in the BTPS state.

    Conclusions:

    • Significant variability exists in the technical performance of clinical PEFMs.
    • There is a need for enhanced quality control and management of PEFMs in healthcare settings, particularly in China.