AKA weaning parameters Respiratory Rate Tidal Volume Minute Ventilation Vital Capacity NIF...
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Ventilatory Parameters AKA weaning parameters
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Transcript of AKA weaning parameters Respiratory Rate Tidal Volume Minute Ventilation Vital Capacity NIF...
- Slide 1
- Slide 2
- AKA weaning parameters
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- Respiratory Rate Tidal Volume Minute Ventilation Vital Capacity NIF (MIP,MIF) RSBI
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- 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
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- 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
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- You should have four values Respiratory rate Minute ventilation Vital capacity Negative inspiratory force From these you can calculate Tidal volume RSBI
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- Normal 12-20 bpm Minimal values Less than 25 bpm More than 10 bpm
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- The average size tidal volume Measure the Minute Ventilation and divide by the rate
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- Normal about 5ml/kg Minimal values More than 250ml Minute ventilation and RSBI are more important
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- Normal 5-10 lpm Minimal Values Less than 10 More than 5
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- 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
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- Normal Minimal values 10 ml/kg 1 liter (1000ml)
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- 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.
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- Normal values >100 cmH2O Minimal Values Greater than 20 cmH2O
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- 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
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- Normal