Bed side tests of Pulmonary function - PowerPoint PPT Presentation

darius
bed side tests of pulmonary function n.
Skip this Video
Loading SlideShow in 5 Seconds..
Bed side tests of Pulmonary function PowerPoint Presentation
Download Presentation
Bed side tests of Pulmonary function

play fullscreen
1 / 11
Download Presentation
Bed side tests of Pulmonary function
661 Views
Download Presentation

Bed side tests of Pulmonary function

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Bed side tests of Pulmonary function Vineet and ravi

  2. Pulmonary function tests have been used traditionally in the preoperative assessment before any major surgery. INDICATION • Determination of any significant impairment of lung function. • Degree and severity of impairment • Characterize any pulmonary dysfunction physiologically as obstructive or restrictive • Identify the site of airway obstruction • Evaluate the risk of procedures on lung • To assess prognosis • Evaluate airway hyper-reactivity .

  3. Snider’s Match Blowing test • Mouth wide open • Match held at 15 cm distance • Chin supported • No head tilting • Match stick and mouth at the same level

  4. Can not blow out a match • MBC < 60 L/min • FEV1 < 1.6L • Able to blow out a match • MBC > 60 L/min • FEV > 1.6L

  5. Modified Snider’s test • 3 inches MBC > 40 L/min • 6 inches MBC > 60 L/min • 9 inches MBC > 150 L/min • FORCED EXPIRATORY TIME • FET < 3 Sec (Restrictive lung ) • FET > 6 sec (Obstructive lung )

  6. SEBERESE’S SINGLE BREATH COUNT • Patients is asked to take a deep breath followed by counting 1,2,3……….. till the time he cannot hold breath . • Shows trend of deteriorating or improving pulmonary function in pre & op . post op patients

  7. SEBARESE ‘S BREATH HOLDING TEST • Subject is asked to take a normal tidal inspiration and hold breath • (N) ≥ 40 Sec • < 15 Sec is a C/I for elective surgery

  8. COUGH TEST • Observe for ability to cough, strength and effectiveness • Wet productive cough candidate for pulm complications • Inadequate cough FVC < 20 ml/kg • FEV, < 15 ml / kg

  9. DE BONO’S WHISTLE TEST • Wide more tube which has a whistle at the end and an adjustable leak hole in the side . The whistle shows when the rate of airflow through the whistle exceeds a certain value. WRIGHT’S PEAK FLOW METER. • Values < 200 L/ min in surgical candidates suggest impaired cough efficiency • (N) Males – 450 – 700 L/min • Females – 300 – 500 L/min

  10. SPIROMETRY WITH POCKET SIZED SPIROMETERS • VC & FEV, Can be readily performed • BED SIDE PULSE OXIMETRY • Useful & rapid index of pulmonary gas exchange ABG • Most commonly used measures of gas exchange are the partial pressures of 02 & co2 in arterial blood. • These pressures do not measure the quantity of 02 & co2 in blood but the driving press. of the gas

  11. BLOW AGAINST THE HAND. • Place your hand against the patients month with slight resistance and ask the patient to blow I: E RATIO