Integrated/Ventilators

Card Set Information

Author:
sethars
ID:
277902
Filename:
Integrated/Ventilators
Updated:
2014-06-30 18:48:13
Tags:
Ventilators
Folders:
Integrated
Description:
Ventilator
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  1. 1. Pneumatic Ventilators us what for a drive gas?
    1. 100% O2 or Air. Air compresses bellows to deliver internal bellow gas to the patient.
  2. 1. What are the different types of Ventilator Modes?
    • 1. Vol. control - Delivers set vol or when pMax is reached
    • 2. Pressure control - Target pressure is set and maintianed for a certain amnt. time. Thus TV varies.
  3. 1. Most common Ventilators use Ascending or Descending? Why?
    • 1. Ascending - No chance for neg pressure.
    • 2. Ascend = ascend during EXpiration
  4. 1. What valve prevents build up of pressure in the bellows? 2. When does it remain open? 3. Shut during______ unless set pressure exceeded. Where does the gas exit?
    • 1. overflow or spill valve
    • 2. during expiratory phase and drive gas is emptying due to bellow filling.
    • 3. inspiration
    • 4. scavenger.
  5. What should be your reaction to an unresolvable alarm?
    1. Turn off vent. increase flows and manually ventilate.
  6. 1. What would a reverse flow alarm potentially mean?
    1. incompitent unidirectional expiratory valve.
  7. What is PSV?
    • 1. Pressure Support Ventilation
    • 2. Requires SPONTANEOUS vent.
    • 3. Will switch to backup mode if no spontaneous breathing after 15-30 secs.
  8. 1. What is VCV or CMV?
    2. Risk?
    3. normal Peak Pressure and vol?
    • 1. Volume control ventilation - Delivers set Vol up to PIP (peak insp. press.)
    •  - Gas delivered at constant flow "Shark fin".
    •  - Modify rate and volume adjust to meet ETCO2 requirements.
    • 2. Barotrauma
    • 3. 40 cm H2O/ TV - 10ml/kg.
  9. 1. PCV and How it works?
    2. What pts need a larger volume thus > PIP setting?
    3. What is PCV - VG
    • 1. Pressure controlled mandatory ventilation.
    •   - Delivers vol. up to set PIP and stops. Vol is pt lung dependent.
    •   - Great for kids, non-compliant lungs, LMA (PIP 20mm h20)
    • 2. Pregnant, Laparoscopic sx (pneumoperitoneum), obese, ARDS.
    • 3. VG = dynamically adjust insp pressure to guarantee min Volume.
  10. SIMV?
    SIMV-VC
    SIMV-PC
    SIMV-PC-VG
    • 1. Spontaneous Intermittent Manditory Ventialation
    • 2. Delivers up to set Volume
    • 3. Delivers up to set Pressure
    • 3. Delivers up to set pressure - Dynamically regulates PIP to ensure Volume.

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