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Respiratory 2 > Pulmonary Function Testing > Flashcards

Pulmonary Function Testing Flashcards

1
Q

Spirometry

A

Used to assess how well your lungs work by measuring how much air you inhale, how much you exhale and how quickly you exhale. Spirometry is used to diagnose asthma, chronic obstructive pulmonary disease (COPD).

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2
Q

What test is used to detect COPD?

A

Spirometry as the result is always abnormal.

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3
Q

Bronchodilator reversibility

A

Test lung function (asthma). This test is done with a spirometer and a bronchodilator.

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4
Q

Broncho provocation test

A

Used to test irritation of the bronchial tree - used to exclude the diagnosis of asthma.

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5
Q

6MWT

A

6 minute walk test - used to assess aerobic capacity and endurance.

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6
Q

CPET

A

Cardiopulmonary Exercise Testing (CPET) is a non-invasive method used to assess the performance of the heart and lungs at rest and during exercise.

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7
Q

Arterial blood gas

A

An ABG is a blood test that measures the acidity, or pH, and the levels of oxygen (O2) and carbon dioxide (CO2) from an artery. The test is used to check the function of the patient’s lungs and how well they are able to move oxygen and remove carbon dioxide.

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8
Q

Diaphragm function test

A

Sniff Test aka Diaphragm fluoroscopy is done to evaluate the function of your diaphragm. Enables real time observation of diaphragm movement.
> used to diagnose diaphragmatic paralysis.
> also test with electromyography and phrenic nerve stimulation.

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9
Q

What drug is used in a bronchoprovocation test?

A

Methacholine is an inhaled drug that causes mild narrowing of the airways in the lungs, like asthma.

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10
Q

What drug is used in a bronchoprovocation test?

A

Methacholine is an inhaled drug that causes mild narrowing of the airways in the lungs, like asthma.

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11
Q

What patients would you not test spirometry on?

A

Patients that have had surgery, an aortic aneurysm, or pneumothorax.

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12
Q

Why do spirometry?

A

Confirms airway obstruction.
Assess severity of COPD.
Monitor disease progression of COPD.

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13
Q

Why do spirometry?

A 
Confirms airway obstruction.
Assess severity of COPD.
Monitor disease progression of COPD.
Assess response to therapy.
Screening.
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14
Q

FLOW VOLUME LOOP REVISE

A

FLOW VOLUME LOOP REVISE

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15
Q

FEV1

A

Forced expiratory volume in 1 second

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16
Q

FEV1

A

Forced expiratory volume in 1 second

17
Q

FVC

A

Forced vital capacity - the total volume of air that can be forcibly expelled from the lungs in one breath.

18
Q

FVC1/FVC ratio

A

The fraction of air exhaled in the first second relative to the total volume exhaled.

19
Q

PEFR

A

Peak expiratory flow rate

20
Q

What factors effect spirometry?

A

Age
Height
Sex
Ethnic origin

21
Q

FLOW VOLUME LOOPS

A

LECTURE 6 SLIDE 12

22
Q

What is meant by challenge testing in spirometry?

A

Refers to the bronchoprovocation tests with methacholine.

23
Q

What is meant by challenge testing in spirometry?

A

Refers to the bronchoprovocation tests with methacholine.

Excludes asthma if negative.

24
Q

A detailed lung function test allows assessment of what?

A

Lung volumes

Lung diffusion

25
Q

What do reduced lung volumes suggest?

A

Restrictive problems - interstitial lung disease, thoracic cage abnormalities, neuromuscular problems.

26
Q

What do increased lung volumes suggest?

A

Air trapping and lung over-inflation characteristic of emphysema in COPD.
> pattern of increased residual volume and functional residual capacity with other lung volumes normal.

27
Q

DLco

A

DLCO, also known as the TLCO, is a measurement of the conductance or ease of transfer for CO molecules from alveolar gas to the hemoglobin of the red blood cells in the pulmonary circulation.

28
Q

What do DLco (aka TLCO) and Kco test?

A

The TLCO and KCO measure the integrity of the blood–gas barrier, being reduced in emphysema, interstitial lung diseases and pulmonary vascular pathology.

29
Q

What is clubbing a sign of?

A

Clubbing occurs in some lung disorders such as lung cancer, lung abscess, pulmonary fibrosis, and bronchiectasis.
Note may be inherited so not always a symptom.

30
Q

What is meant by MEP / MIP / SNIP

A

MEP: maximal expiratory pressure, MIP: maximal inspiratory pressure, SNIP: sniff nasal inspiratory pressure.

Respiratory 2 (22 decks)

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