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# Pulmonary Function Test Quiz

Assess your knowledge of pulmonary function tests, including spirometry, lung volumes, and capacities. Learn how they measure lung function and breathing capacity.

Created by
@HumbleFreedom8372

1.2 L

4.7 L

3.5 L

### What is the volume of air remaining in the lungs after a forceful expiration?

<p>1.2 L</p> Signup and view all the answers

### What is the equation for Vital Capacity (VC)?

<p>VC = IRV + TV + ERV</p> Signup and view all the answers

### What is the volume of air remaining in the lungs after normal expiration?

<p>1.2 L</p> Signup and view all the answers

### What is the relationship between Inspiratory Capacity (IC) and Tidal Volume (TV)?

<p>IC = IRV + TV</p> Signup and view all the answers

### What is the difference between Expiratory Reserve Volume (ERV) and Residual Volume (RV)?

<p>ERV is the volume of air exhaled after a normal expiration, while RV is the volume of air remaining in the lungs after a forceful expiration</p> Signup and view all the answers

### What is the total lung capacity (TLC) equal to?

<p>IRV + TV + ERV + RV</p> Signup and view all the answers

### What is the maximum volume of air that can be exhaled slowly after slow maximum inhalation?

<p>Slow vital capacity (SVC)</p> Signup and view all the answers

### What is the largest volume of air that can be breathed out of the lungs in 1 minute?

<p>Maximum voluntary ventilation (MVV)</p> Signup and view all the answers

### What is the volume of expired air in liters per minute measured over a minimum of one minute while breathing normally?

<p>Minute ventilation (MV)</p> Signup and view all the answers

### What is the majority of FVC exhaled in?

<p>The first few seconds</p> Signup and view all the answers

### What is the respiratory rate multiplied by in the formula for minute ventilation?

<p>Tidal volume</p> Signup and view all the answers

### What is the purpose of dynamic lung tests?

<p>To determine the severity of obstructive and restrictive lung diseases</p> Signup and view all the answers

### What is the name of the test that measures the total volume of air that can be exhaled forcefully and rapidly after maximum inhalation?

<p>Forced vital capacity (FVC)</p> Signup and view all the answers

### What is the primary function of pulmonary function tests?

<p>To measure how well the lungs take in and release air</p> Signup and view all the answers

### What is spirometry?

<p>The most common type of pulmonary function test</p> Signup and view all the answers

### What is measured by spirometry?

<p>How much air you can breathe in and out of your lungs</p> Signup and view all the answers

### What is the difference between lung volumes and capacities?

<p>Lung volumes are static, while capacities are dynamic</p> Signup and view all the answers

### What is the Inspiratory Reserve Volume (IRV)?

<p>The maximum amount of air that can be forcefully inspired after a normal tidal volume inspiration</p> Signup and view all the answers

### What is the Tidal Volume (TV)?

<p>The amount of air inspired or expired during normal quiet breathing</p> Signup and view all the answers

### How many static lung volumes are there?

<p>4</p> Signup and view all the answers

### What is the total lung capacity?

<p>IRV + TV + ERV + RV</p> Signup and view all the answers

## Study Notes

### Pulmonary Function Tests

• Pulmonary function tests measure how well the lungs take in and release air.
• Spirometry is the most common type of pulmonary function test.

### Lung Volumes and Capacities

• Lung volumes are divided into 4 defined volumes and 4 capacities.
• Volumes are integral units, whereas capacities consist of 2 or more volumes.
• Static lung volumes do not depend on the rate at which air flows.

### Lung Volumes

• Tidal Volume (TV): volume of air inspired or expired during normal quiet breathing (0.5L).
• Inspiratory Reserve Volume (IRV): maximum amount of air that can be forcefully inspired after a normal tidal volume (3L).
• Expiratory Reserve Volume (ERV): maximum amount of air that can be forcefully expired after a normal or resting expiration (1.2L).
• Residual Volume (RV): volume of air remaining in the lungs after a forceful expiration (1.2L).

### Lung Capacities

• Vital Capacity (VC): volume of air that can be exhaled from the lungs after a maximum inspiration (VC = IRV + TV + ERV = 4.7L).
• Inspiratory Capacity (IC): amount of air that the lung can hold after normal expiration (IC = IRV + TV = 3.5L).
• Functional Residual Capacity (FRC): volume of air remaining in the lungs after normal expiration (FRC = ERV + RV = 2.4L).
• Total Lung Capacity (TLC): volume of air in the lungs after a maximum inspiration (TLC = IRV + TV + ERV + RV = 5.9L).

### Spirometry Tests

• Forced Vital Capacity (FVC): total volume of air that can be exhaled forcefully and rapidly after maximum inhalation.
• Slow Vital Capacity (SVC): maximum volume of air that can be exhaled slowly after slow maximum inhalation.
• Maximum Voluntary Ventilation (MVV): largest volume of air that can be breathed out of the lungs in 1 minute.
• Minute Ventilation (MV): volume of expired air in liters per minute measured over a minimum of one minute while breathing normally (MV = respiratory rate x tidal volume).

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