Manual of PFT's

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Author:
Sjerry85
ID:
55030
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Manual of PFT's
Updated:
2010-12-12 11:26:22
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Pulmonary Diagnostics
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Chapter 1 : Indications for Pulmonary Function Testing
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  1. Body Plethysmograph
    Instrument used to measure lung volumes (FRCpleth) and airway resistance (Raw); consists of an enclosed booth or chamber in which the patients sits to measure changes in lung volume indirectly
  2. Bronchial Challenge
    Bronchial provocation test; used to assess airway response after a challenge to the airways, particularly useful in measuring response to bronchodilator medications; also known as bronchochallenge
  3. Capnography
    The measurement and/or recording of exhaled carbon dioxide (CO2)
  4. Diffusing Capacity
    Measure of the uptake of small volumes of carbon monoxide (CO); referred to as DLCO or DCO
  5. Edema
    Leakage of fluides from blood vessels caused by imbalance in pressures
  6. Forced Vital Capacity (FVC)
    The maximum volume of gas that can be expired when the patient exhales as forcefully and rapidly as possible after a maximal inspiration
  7. Hypercapnia
    Higher than normal level of carbon dioxide; usually greater than 45 mmHg in arterial blood
  8. Hyperventilation
    Ventilation in excess of CO2 production resulting in respiratory alkalosis
  9. Hypoventilation
    Inadequate ventilation to remove CO2 resulting in respiratory acidosis
  10. Maximal Expiratory Flow-Volume (MEFV)
    A curve that shows flow as the patient exhales from maximal inspiration (TLC) to maximal expiration (RV)
  11. Maximal Voluntary Ventilation (MVV)
    The volume of air that can be inspired and expired during a specific interval with rapid, forced breathing
  12. Oximetry
    The measurement, either directly or indirectly, of the oxygen saturation of the blood
  13. Pulse Oximetry
    Estimation of arterial saturation by analysis of light absorption of blood pulsing through a capillary bed (finger or earlobe)
  14. Resting Energy Expenditure (REE)
    The caloric needs of the body estimated from oxygen consumption and carbon dioxide production, usually expressed in kilo-calories per 24 hours
  15. Spirometry
    The classic pulmonary function test, which measures the volume of air inspired or expired as a function of time.
  16. Vital Capacity
    This test simply measures the largest volume of air that can be moved into or out of the lungs.

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