Integrated Causes of Hypoxic

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Author:
sethars
ID:
278577
Filename:
Integrated Causes of Hypoxic
Updated:
2014-07-14 16:04:24
Tags:
Causes Hypoxia
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  1. 1. What are 4 causes of hypoxia?
    • 1. Hypoxic gas mixture
    • 2. Prob with flow control valve or flowmeters
    • 3. Oxygen leak to atmosphere
    • 4. Air entrainment
  2. What can cause an incorrect Gas supply?
    • 1. problem with pipeline
    • 2. problem with cylinder
    • 3. crossover of O2 and N2O in machine
    •     - i.e. N2O delivered via O2 flowmeter.
  3. What action MUST you take if you suspect pipeline O2 is delivering < 100% O2.
    1. OPEN O2 cylinder and disconnect pipeline.
  4. 1. What is the minimum oxygen ratio device or proportioning system?
    1. Maintains at least a 25% O2 when N2O is in use
  5. 1. What is air entrainment?
    1. Pressure loss in system < atmospheric pressure.... so, air is drawn into system via leak or disconnection.
  6. 1. What is the most common anesthesia mishap?
    2. most common location.
    3. alarms that will detect disconnection?
    • 1. Disconnection
    • 2. between breathing system and ET tube
    • 3. low pressure, low volume, low ETCO2
  7. 1. What are causes of negative pressure in the breathing system?
    • 1. Defective inlet valve of closed suctioning system
    • 2. suction NGT in trachea
  8. What are causes of hypercapnia
    • 1. Exhausted absorbent
    • 2. faulty unidirectional valves
    • 3. excessive dead space.
    • 4. hypoventilation (inspired CO2 will be ZERO if hypoventilation sole cause)
  9. A. Excessive Airway pressure can cause what problems?
    B. Excessive airway pressure can be caused by what 2 ways?
    • A.
    • 1. Barotrauma - Pneumothorax
    • 2. CV compromise
    • 3. interfere with ventilation
    • 4. interfere with surgical procedure
    • B. High flow and low outflow pressure build up.
  10. 1. High flow excessive pressure can be caused by what?
    2. Low outflow causing excessive pressure
    • 1. O2 emergency flush stuck or used during inspiration.
    • 2. - Kinked expiratory limb
    •     - stuck spillover or overflow valve
    •     - Obstructed scavenging system
    •     - obstructed APL
  11. 1. what are some problems that may arise with the vaporizors?
    • 1. accidentally left on
    • 2. over filled
    • 3. not seated correctly
    • 4. filled with wrong agent
    • 5. vaporizer not locked
    • 6. interlock failure
    • 7. cap not on tight
    • 8. cant be tipped

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