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AKA weaning parameters  Respiratory Rate  Tidal Volume  Minute Ventilation  Vital Capacity  NIF (MIP,MIF)  RSBI.

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Presentation on theme: "AKA weaning parameters  Respiratory Rate  Tidal Volume  Minute Ventilation  Vital Capacity  NIF (MIP,MIF)  RSBI."— Presentation transcript:

1

2 AKA weaning parameters

3  Respiratory Rate  Tidal Volume  Minute Ventilation  Vital Capacity  NIF (MIP,MIF)  RSBI

4  You need some type of volume measuring device  Wright Respirometer is a hand held device for this  Measure exhaled tidal volume for one minute, it will accumulate and give you a minute ventilation

5  Take the minute ventilation value and divide by the RR. This gives you the average Vt  Coach the patient to do a Vital Capacity  Take the largest volume you obtain  With another device, a manometer, measure the amount of negative force a patient can generate  Do this by attaching the manometer and occluding all air and watch the manometer

6  You should have four values Respiratory rate Minute ventilation Vital capacity Negative inspiratory force  From these you can calculate Tidal volume RSBI

7  Normal bpm  Minimal values Less than 25 bpm More than 10 bpm

8  The average size tidal volume  Measure the Minute Ventilation and divide by the rate

9  Normal about 5ml/kg  Minimal values More than 250ml Minute ventilation and RSBI are more important

10  Normal 5-10 lpm  Minimal Values Less than 10 More than 5

11  The maximum amount of air you can breathe out after inhaling as much as possible.  “take a big breath in and blow it all out”  FVC is the basic test done in a PFT  The patient is not to use force for this test, we are measuring just the volume

12  Normal  Minimal values 10 ml/kg 1 liter (1000ml)

13  Negative Inspiratory Force  Maximum Inspiratory Pressure (MIP)  Maximum Inspiratory Force (MIF) The maximum amount of force a patient can generate while breathing in with a closed circuit.

14  Normal values >100 cmH2O  Minimal Values Greater than 20 cmH2O

15  Rapid Shallow Breathing Index  The more rapid and shallow the breathing the less effective it is  Respiratory rate(f) divided by tidal volume(Vt)  Single best indicator of post extubation success

16  Normal <105  Use the Vt and RR from the parameters gathered


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