PULMONARY FUNCTION TEST
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Used to examine the function of respiratory
system
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Generally use spirometer that detects pulmonary
function as result in form of spirogram.
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The indications:
a)
Detect the lung diseases
b)
Evaluate extent and monitor the course of the disease.
c)
Identify the value of treatment with
bronchodilators (device that increase the volume inside the space of bronchi).
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It is divided into 2 types of test:
a)
Static test(does not involve the time factor)
b)
Dynamic test( time acts as manipulated variable)
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Examples of static test:
a)
4 lung volumes: 500 ml tidal volume (TV), 3000
ml inspiratory reserved volume (IRV), 1000 ml expiratory reserved volume (ERV)
and 1200 ml residual volume (RV).
b)
4 lung capacities: vital capacity(VC), total lung
capacity(TLC), functional residual capacity(FRC) and inspiratory capacity(IC)
c)
Dead space, the respiratory part that involve
only in air-way passage but not the gaseous exchanges.
d)
Pulmonary ventilation( minute respiratory
volume)
e)
Alveolar ventilation
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Examples of dynamic test:
a)
Timed vital capacity
b)
Maximum breathing capacity
c)
Peak expiratory flow rate
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