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Related Concept Videos

Pulmonary Function Tests01:25

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...
Physical Assessment of the Respiratory Tract II: Palpation01:24

Physical Assessment of the Respiratory Tract II: Palpation

Physical assessment of the respiratory tract is critical in identifying potential health issues. One key component of this assessment is palpation, a technique healthcare providers use to assess the body for abnormalities. This content explores the method of palpation in evaluating the respiratory tract, focusing on thoracic palpation and tactile fremitus.
Thoracic Palpation
Thoracic palpation detects tenderness, masses, lesions, respiratory excursions, and vocal fremitus. The nurse assesses...

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Related Experiment Video

Updated: Jul 10, 2026

Experimental Protocol of a Three-minute, All-out Arm Crank Exercise Test in Spinal-cord Injured and Able-bodied Individuals
07:32

Experimental Protocol of a Three-minute, All-out Arm Crank Exercise Test in Spinal-cord Injured and Able-bodied Individuals

Published on: June 8, 2017

Pulmonary function testing in quadriplegic subjects.

K R Pithon1, L E B Martins, A C M Renno

  • 1Orthopaedics Department, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil.

Spinal Cord
|November 21, 2007
PubMed
Summary

Pulmonary function tests in quadriplegic individuals show that standard prediction equations overestimate lung capacity. Measured values are significantly lower than predicted, highlighting the need for specialized assessment tools for this population.

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Area of Science:

  • Pulmonary Medicine
  • Rehabilitation Medicine
  • Clinical Physiology

Background:

  • Pulmonary functional capacity is crucial for individuals with spinal cord injuries.
  • Accurate assessment of lung function is vital for managing respiratory health in quadriplegia.
  • Existing prediction equations for pulmonary function may not accurately reflect the physiological status of quadriplegic individuals.

Purpose of the Study:

  • To investigate and compare measured pulmonary functional capacity with predicted values in Brazilian quadriplegic subjects (ASIA A).
  • To evaluate the accuracy of existing prediction equations for estimating lung function in individuals with complete spinal cord injuries.

Main Methods:

  • A cross-sectional study was conducted with 23 quadriplegic subjects (ASIA A).
  • Pulmonary function was assessed using spirometry, including forced vital capacity (FVC) and maximal voluntary ventilation (MVV).
  • Measured values were compared against three established prediction equations for spinal cord injury populations.

Main Results:

  • Measured FVC, FEV1, and MVV values were significantly lower than those predicted by standard equations.
  • The study demonstrated a significant overestimation of pulmonary function when using existing prediction formulas.
  • Experimental spirometry data revealed substantial differences compared to predicted outcomes.

Conclusions:

  • Prediction equations commonly used for wheelchair users significantly overestimate pulmonary function in quadriplegic individuals with complete lesions (ASIA A).
  • Measured spirometry values provide a more accurate representation of lung function in this population.
  • Clinical guidelines should consider these discrepancies and potentially utilize tailored assessment methods for quadriplegic patients.