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exam1
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2010-11-30 20:35:27
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  1. not a goal of applying mechanical vent to a pt
    increase stress on the cardio-pulm system
  2. 3 indications for mechanical ventilation
    • impending resp failure
    • acute resp failure
    • prophylactic vent support
  3. not necessary for oral intubation
    water soluble lubricant
  4. a RR of ____ shows impending resp failure
    > 40 bpm
  5. 3 physical assessment of resp failure
    • tachycardia
    • cardiac arrythmias
    • hypertension
  6. severe hypoxemia can be seen on an ABG as a (2)
    PaO2 < 60 mmHg on 50% Fi02

    PaO2 < 40 on any FI02
  7. alveolar air equation is used to calculate
    PAO2
  8. prophylactic vent support is used in pt who present w/
    pulmonary complications
  9. an absolute contraindication to mech vent is
    untreated tension pneumothorax
  10. common parameters to set when ventilating in an assist control/volume mode are
    • rr
    • tidal vol/ min vol
  11. common parameters to set when ventilating in an SIMV/pressure mode are
    rr

    pressure
  12. range for setting vt to ideal body weight is (2)
    • 8-12 cc/Kg for a surgical pt
    • 5'8 cc/Kg for a medical pt
  13. "f" on a ventilator
    rr
  14. increasing vt (2)
    • inc peak pressure
    • dec CO2
  15. a pt has a PaCO2 of 50 mmHg. what would u adjust to reduce the pt PaCO2 w/o increasing their peak pressure
    increase rr
  16. minute vol (formula)
    vt x rr
  17. over time, high levels of O2 can cause
    none of the above (hyperventilating will cause Nitrogen washout)
  18. Peep
    • is set in cmH2O
    • inc FRC
    • is considered physiologic at a setting of +5

    (all of the above)
  19. normal range for an I:E ratio is
    1:2 - 1:4
  20. i-time is set in
    seconds
  21. flow (if set) is set in
    LPM
  22. an I:E ratio of 1:1 equals a _____% i-time
    50
  23. which of the following breath delivery waveforms has the fastest flow to the pt
    square
  24. an increase of flow
    none of the above (inc flow, dec i-time, inc exp time)
  25. a decrease in Vt will
    inc e-time
  26. the high and low pressure alarms are normally set ______ cmH20 above and below peak pressure
    10-15
  27. high RR alarm should be set ____ bpm over the observed rate
    10-15
  28. input power to a mechanical vent can be (2)
    • pneumatic
    • electric
  29. drive mechanisms on a mech vent includes (4)
    • microprocessors and solenoid valves
    • pistons
    • bellows
    • reducing valves

    (all of the above)
  30. control variable on a mechanical ventilator include ____ controller/s (4)
    • pressure
    • volume
    • flow
    • time

    (all of the above)
  31. when turning on the PB 840, it must have a _____ circuit to function properly
    open
  32. when using the PB 840, D sens (2)
    refers to the % of the breath that must be lost for the 840 to alarm circuit disconnect

    can adjust to compensate for a cuffless tracheostomy tube
  33. when using the PB 840, V max refers to
    flow
  34. when using the PB 840 V sens refers to
    sensitivity
  35. must produce a pressure gradient btwn the airway opening and the alveoli in order to produce inspiratory flow and volume delivery is termed for
    a mechanical ventilator
  36. in assist control, if a pt breathes over the set RR they receive
    set vt
  37. in simv, if a pt breaths over the set RR they receive
    their own spontaneous vt
  38. pressure support can be active in which of the following modes (3)
    • simv
    • spontaneous
    • simv/pressure control

    (all of the above)
  39. in ac/vc, which of the following variables are set (2)
    • vt
    • flow
  40. in simv/vc, which of the following variable are set (3)
    • vt
    • rr
    • flow
  41. In AC/PC, which of the following variables are set?
    pressure
  42. t/f ac/pc is not a weaning mode
    true
  43. in PRVC which of the following vary to deliver volume at the lowest possible pressure
    flow and vt
  44. airway pressure release ventilation sets
    two peak flows
  45. if a pt peak pressure is too high on AC, which of the following modes should be tried (2)
    • pressure control
    • PRVC

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