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Pulmonary Function Tests

Pulmonary Function Tests

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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...

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Related Experiment Video

Updated: Jul 10, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus

Published on: March 6, 2019

Changing patterns of fetal lung maturity testing.

K T McGinnis¹, J A Brown, J C Morrison

¹Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, MS 39216-4505, USA.

Journal of Perinatology : Official Journal of the California Perinatal Association

|November 16, 2007

Summary

This summary is machine-generated.

Fetal lung maturity (FLM) testing has declined nationally, with 60% of practitioners reporting reduced use. This decrease, particularly in near-term pregnancies, may negatively impact neonatal outcomes.

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Last Updated: Jul 10, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus

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Published on: March 6, 2019

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Published on: May 5, 2018

Area of Science:

Obstetrics and Gynecology
Neonatal Medicine
Clinical Chemistry

Background:

Fetal lung maturity (FLM) testing is crucial for assessing neonatal respiratory risk.
A notable decrease in FLM testing was observed in our laboratory over a decade.

Purpose of the Study:

To determine if the observed decline in FLM testing is a national trend.
To identify potential reasons for changes in FLM testing practices.

Main Methods:

A survey was distributed to Maternal-Fetal Medicine fellows across academic and private practices.
Survey responses were analyzed to assess trends and reasons for FLM testing reduction.

Main Results:

A significant decrease in FLM testing was reported by 60% of respondents.
Specific test reductions included foam stability index (65%), fluorescence polarization (35%), phosphatidyl glycerol (71%), and lecithin/sphingomyelin ratio (70%).
The primary reason cited for decreased testing was its perceived lack of necessity in patient management.

Conclusions:

Obstetric practices regarding FLM testing have shifted, with a documented decline.
This reduction, especially in near-term pregnancies, carries potential risks for adverse neonatal outcomes.