Skip to main content
 

Main menu

  • Home
  • Content
    • Current Issue
    • Editor's Commentary
    • Archives
    • Most-Read Papers of 2022
  • Authors
    • Author Guidelines
    • Submit a Manuscript
  • Reviewers
    • Reviewer Information
    • Create Reviewer Account
    • Reviewer Guidelines: Original Research
    • Reviewer Guidelines: Reviews
    • Appreciation of Reviewers
  • CRCE
    • Through the Journal
    • JournalCasts
    • AARC University
    • PowerPoint Template
  • Open Forum
    • 2023 Call for Abstracts
    • 2022 Abstracts
    • Previous Open Forums
  • Podcast
    • English
    • Español
    • Portugûes
    • 国语
  • Videos
    • Video Abstracts
    • Author Interviews
    • Highlighted Articles
    • The Journal

User menu

  • Subscribe
  • My alerts
  • Log in

Search

  • Advanced search
American Association for Respiratory Care
  • Subscribe
  • My alerts
  • Log in
American Association for Respiratory Care

Advanced Search

  • Home
  • Content
    • Current Issue
    • Editor's Commentary
    • Archives
    • Most-Read Papers of 2022
  • Authors
    • Author Guidelines
    • Submit a Manuscript
  • Reviewers
    • Reviewer Information
    • Create Reviewer Account
    • Reviewer Guidelines: Original Research
    • Reviewer Guidelines: Reviews
    • Appreciation of Reviewers
  • CRCE
    • Through the Journal
    • JournalCasts
    • AARC University
    • PowerPoint Template
  • Open Forum
    • 2023 Call for Abstracts
    • 2022 Abstracts
    • Previous Open Forums
  • Podcast
    • English
    • Español
    • Portugûes
    • 国语
  • Videos
    • Video Abstracts
    • Author Interviews
    • Highlighted Articles
    • The Journal
  • Twitter
  • Facebook
  • YouTube
Research ArticleOriginal Contributions

Change in Forced Expiratory Time and Spirometric Performance During a Single Pulmonary Function Testing Session

Adam G Tsai, Jason D Christie, Christina A Gaughan, Wenceslao R Palma and Mitchell L Margolis
Respiratory Care March 2006, 51 (3) 246-251;
Adam G Tsai
Division of General Internal Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
Weight and Eating Disorders Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Jason D Christie
Pulmonary Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Christina A Gaughan
Center for Clinical Epidemiology and Biostatistics, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Wenceslao R Palma Jr
Pulmonary Function Laboratory, Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Mitchell L Margolis
Pulmonary Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: [email protected]
  • Article
  • References
  • Info & Metrics
  • PDF
Loading

Abstract

BACKGROUND: Among patients with obstructive lung disease, the correlation between clinical improvement and bronchodilator response is poor. Forced expiratory time (FET) may explain some discrepancy, but FET has received little attention.

METHODS: We analyzed change in FET during the 3 initial satisfactory flow-volume loops in 102 consecutive patients, 37 with normal spirometry and 65 with airflow obstruction referred to a Veterans Administration pulmonary function testing (PFT) laboratory over 5 months. Patients included both PFT-naïve and PFT-experienced individuals. We also evaluated the relationship between FET and spirometric performance (sum of forced expiratory volume in the first second and forced vital capacity) and the effect of inhaled bronchodilator on FET among patients with airflow obstruction.

RESULTS: Normals and patients with airflow obstruction showed significant increments in FET and in spirometric performance during the 3 initial successive pre-bronchodilator attempts (p < 0.001 for both groups). This was true for PFT-naïve and PFT-experienced individuals. There were significant associations between increments in FET and improvements in spirometric performance in all subgroups. After inhaled bronchodilator there was a further FET increment among patients with airflow obstruction (p = 0.009), but there was no significant difference between bronchodilator responders and nonresponders.

CONCLUSIONS: Patients with normal pulmonary function and those with obstruction develop longer FET during the initial phases of spirometric testing, regardless of previous PFT experience. Longer FET is associated with better spirometric performance. Bronchodilator administration is associated with modest prolongation of FET, but change in FET did not help identify bronchodilator responders.

  • pulmonary function test
  • forced expiratory time

Footnotes

  • Correspondence: Mitchell L Margolis MD, Pulmonary Division, Philadelphia Veterans Affairs Medical Center, University and Woodland Avenues, Philadelphia PA 19104. E-mail: mitchell.margolis{at}med.va.gov.
  • Copyright © 2006 by Daedalus Enterprises Inc.
PreviousNext
Back to top

In this issue

Respiratory Care: 51 (3)
Respiratory Care
Vol. 51, Issue 3
1 Mar 2006
  • Table of Contents
  • Table of Contents (PDF)
  • Cover (PDF)
  • Index by author

 

Download PDF
Article Alerts
Sign In to Email Alerts with your Email Address
Email Article

Thank you for your interest in spreading the word on American Association for Respiratory Care.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Change in Forced Expiratory Time and Spirometric Performance During a Single Pulmonary Function Testing Session
(Your Name) has sent you a message from American Association for Respiratory Care
(Your Name) thought you would like to see the American Association for Respiratory Care web site.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Citation Tools
Change in Forced Expiratory Time and Spirometric Performance During a Single Pulmonary Function Testing Session
Adam G Tsai, Jason D Christie, Christina A Gaughan, Wenceslao R Palma, Mitchell L Margolis
Respiratory Care Mar 2006, 51 (3) 246-251;

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero

Share
Change in Forced Expiratory Time and Spirometric Performance During a Single Pulmonary Function Testing Session
Adam G Tsai, Jason D Christie, Christina A Gaughan, Wenceslao R Palma, Mitchell L Margolis
Respiratory Care Mar 2006, 51 (3) 246-251;
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Jump to section

  • Article
  • Info & Metrics
  • References
  • PDF

Related Articles

Cited By...

Keywords

  • pulmonary function test
  • forced expiratory time

Info For

  • Subscribers
  • Institutions
  • Advertisers

About Us

  • About the Journal
  • Editorial Board

AARC

  • Membership
  • Meetings
  • Clinical Practice Guidelines

More

  • Contact Us
  • RSS
American Association for Respiratory Care

Print ISSN: 0020-1324        Online ISSN: 1943-3654

© Daedalus Enterprises, Inc.

Powered by HighWire