Author Question: A patient who requires prolonged ventilatory support should not be considered permanently ... (Read 66 times)

codyclark

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A patient who requires prolonged ventilatory support should not be considered permanently ven-tilator dependent until ________ month(s) has/have passed and all weaning attempts during that time have failed.
 
  a. 1
  b. 3
  c. 6
  d. 9

Question 2

A patient being actively weaned from mechanical ventilation currently is receiving the following ventilatory support: pressure support = 15 cm H2O,
 
  spontaneous VT = 575 mL, spontaneous rate = 14 breaths/min, spontaneous VT = 500 mL, FIO2 = 35, PEEP = 5 cm H2O. The arterial blood gas results are: pH = 7.42, PaCO2 = 38 mm Hg, PaO2 = 94 mm Hg, SaO2 = 98, HCO3 = 24 mEq/L. What should the respiratory therapist do next?
  a. Reduce PEEP to zero.
  b. Reduce the FIO2 to 30.
  c. Reduce the PS to 10 cm H2O.
  d. Extubate the patient.



medine

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Answer to Question 1

ANS: B
Unless evidence of irreversible disease exists, a patient who requires prolonged ventilatory sup-port should not be considered permanently ventilator dependent until 3 months have passed and all weaning attempts during that time have failed.

Answer to Question 2

ANS: C
At this point, the ABG results show no acid-base imbalance and no hypoxemia. The parameter that should be reduced is the pressure support. When pressure support is reduced to about 5 cm H2O, the pressure level is not high enough to contribute significantly to ventilatory support. Once at PS 5 cm H2O, the patient will be ready for a cuff leak test.



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