Related Experiment Video
Updated: Aug 14, 2026

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
Guideline for office spirometry in adults, 2004
E M van Schalkwyk1, C Schultz, J R Joubert
1Department of Medicine, Stellenbosch University, PO Box 19063, Tygerberg, 7505. emvs@sun.ac.za
Objective:
To provide clinical guidelines for office spirometry in South Africa.
Options:
More stringent guidelines are required for diagnostic laboratories and research.
Outcomes:
To minimise variations in standard practice and improve the quality and usefulness of spirometry in the clinical setting.
Evidence:
Recommendations are based on key international publications as well as research publications regarding reference values for South Africans.
Benefits, Harm And Costs:
The medical, social and economic benefits and costs of standardisation of office spirometry in South Africa were considered in the recommendations.
Validation:
The document has been reviewed and endorsed by the South African Thoracic Society.
Conclusions:
The indications for spirometry must be specific and clear. Spirometry equipment must meet internationally accepted performance standards and carry proof of validation. Equipment must be regularly calibrated and maintained. Individuals performing spirometry must be adequately trained and demonstrate a high level of competence. Subject preparation, testing and quality control of results must be carried out according to published guidelines. Finally, test results must be interpreted according to current diagnostic guidelines, taking into account the purpose of the test, appropriateness of reference values and the clinical evaluation.
Related Concept Videos
Respiratory Volumes
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
Assessment of Respiration
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like asthma or COPD,...
Respiratory Assessment: Purpose and Indications
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Physical Assessment of the Respiratory Tract II: Inspection
Chest Configuration
The chest configuration can...
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Pulmonary Function Tests
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...

