Understanding Pulmonary Function Tests

Cheryl Jessup, a pulmonary function and sleep technologist, explains the importance of pulmonary function tests (PFTs) in diagnosing and managing respiratory diseases. The video covers lung anatomy, spirometry, and advanced tests like DLCO and body plethysmography. It also discusses obstructive and restrictive lung diseases, and the impact of sleep on breathing. The goal is to help viewers understand lung function tests and their role in improving health.

What is the primary purpose of pulmonary function tests?

• To check heart rate

• To evaluate kidney function

• To measure blood pressure

• To assess lung function

Which of the following is NOT a factor in determining lung size?

• Weight

• Gender

• Age

• Height

What does spirometry primarily measure?

• Muscle strength

• Heart rate

• Lung volume and flow

• Blood sugar levels

In obstructive lung disease, what happens to the airways?

• They remain unchanged

• They become smaller due to inflammation

• They become more elastic

• They expand and allow more air

What is the purpose of the diffusion test?

• To evaluate heart function

• To assess oxygen diffusion into the blood

• To measure blood pressure

• To check muscle strength

What does body plethysmography measure?

• Heart rate

• Muscle strength

• Lung resistance and residual volume

• Blood sugar levels

What do muscle strength tests evaluate?

• Heart rate

• Blood pressure

• Lung volume

• Breathing muscle strength

Which test measures the strength of the diaphragm?

• Diffusion test

• MIPS

• Spirometry

• Body plethysmography

What is a polysomnogram used for?

• Measuring blood pressure

• Assessing sleep and breathing patterns

• Evaluating heart function

• Checking muscle strength

What might be required if a sleep test shows low oxygen levels during sleep?

• More sleep

• Supplemental oxygen or a ventilator

• Dietary changes

• Increased exercise