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Author Question: Your patient has relatively normal lungs and is receiving mechanical ventilation following sur-gery. ... (Read 23 times)

mynx

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on: Jul 16, 2018
Your patient has relatively normal lungs and is receiving mechanical ventilation following sur-gery. You observe double triggering. What is the most likely cause?
 
  a. The termination criteria is set too low.
  b. The flow rate is too slow.
  c. Auto-PEEP.
  d. The inspiratory time is too short.

Question 2

What is the normal trigger delay?
 
  a. Less than 100 msec
  b. Less than 150 msec
  c. Less than 200 msec
  d. Less than 250 msec


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LVPMS

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
In patient with relatively healthy lungs where the termination criteria is set too high or inspiratory time too short, double triggering can occur every breath. These are primarily postoperative pa-tients or overdose patients.

Answer to Question 2

ANS: A
Normally the trigger delay should be minimal, less than 100 msec. When it exceeds 150 msec, the cause should be determined. Adjusting the sensitivity, setting the tidal volume appropriately and/or applying PEEP should correct delayed triggering unless there is a true malfunction of the ventilator.


mynx

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

Dinolord

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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