- Vital Capacity: Measures the largest volume of air that can be moved into or out of the lungs and is
related to the standing height of the patient.
Maximal Voluntary Ventilation (MVV)
- Definition: Can be used to assess physiological demands or a patient's ability to exercise and peak
ventilation capacity.
- Largest volume of air that a patient can move in and out in 12-15 seconds.
PFT Predicted Values Based on:
- Age
- Gender (biological sex)
- Height (standing/sitting)
- Race or ethnic origin
- Weight or body surface area
, Pre-Test Guidelines
- Withhold bronchodilator 4-6 hours prior to pre/post bronchodilator studies during PFT testing.
- Stop smoking 1 hour before the test.
- Stop smoking 24 hours before the DLCO test.
- Do not consume alcohol 4 hours before the test.
- Stop vigorous exercise immediately or within 2 hours before the test.
- Light meal and water only 1 hour before the test.
Indications for Spirometry
1. Preoperative evaluation for pneumonectomy
2. Measurement of exercise capacity
3. Determination of the beneficial effects of a bronchodilator
4. Measurement of the effects of working in a dusty environment
Approved indications include options 1, 3, and 4.
Measurement of Lung Volumes
- Measurement of total lung capacity (TLC) is indicated to diagnose restrictive lung disease.
Clinical Vignettes
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CertifiedGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.88. You're not tied to anything after your purchase.
