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Pulmonary Function Tests

Pulmonary Function Tests

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...

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.

Pneumonia III: Complications and Assessment

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:

COPD: Pathogenesis and Clinical Features

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation

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Updated: Aug 7, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

Published on: December 19, 2020

Pulmonary Function Test as a Diagnostic Tool for Post-COVID-19 Effects.

Muskan Lalwani¹, Avinash B Taksande¹

¹Physiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences, Wardha, IND.

|March 13, 2023

Summary

This summary is machine-generated.

Many COVID-19 survivors experience persistent lung issues and breathing problems for months after recovery. This review examines long-term pulmonary effects and recovery in these patients.

Keywords:

long term covid19 effects lung function test post covid19 post discharge effects pulmonary function test

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Last Updated: Aug 7, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

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Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging

Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging

Published on: June 21, 2024

Area of Science:

Pulmonology
Infectious Diseases
Post-COVID Conditions

Background:

Persistent symptoms are common in COVID-19 survivors post-hospitalization.
The lungs are frequently affected, leading to potential chronic breathing impairments.
Long-term effects of COVID-19 (coronavirus disease 2019) require further investigation.

Purpose of the Study:

To evaluate the prevalence and characteristics of pulmonary function changes in COVID-19 survivors.
To compare restrictive, obstructive patterns, and diffusion capacity post-COVID-19 infection.
To identify risk factors and pathophysiologic mechanisms of long-term respiratory sequelae.

Main Methods:

Review of existing literature on long-term COVID-19 effects.
Analysis of lung function tests (pulmonary function tests) conducted 3-12 months post-discharge.
Evaluation of clinical features and biomarkers in survivors with varying diffusion capacities.

Main Results:

A significant percentage of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) patients report chronic symptoms.
Pulmonary function test abnormalities, including restrictive and obstructive patterns, are observed.
Changes in breathing characteristics and diffusion capacity for carbon monoxide (DLCO) persist for up to a year.

Conclusions:

COVID-19 can lead to lasting pulmonary impairment in survivors.
Multidisciplinary approaches are essential for managing long-term COVID-19 care and rehabilitation.
Further research is needed to understand mechanisms and develop targeted interventions for post-COVID respiratory conditions.