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Author Question: What is the tidal volume delivered when the Newport HT50 is set to deliver volume-controlled ... (Read 54 times)

Themember4

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on: Jul 16, 2018
What is the tidal volume delivered when the Newport HT50 is set to deliver volume-controlled ventilation with an inspiratory time of 0.75 second and a flow of 0.83 L/s?
 
  a. 375 mL c. 904 mL
  b. 623 mL d. 1107 mL

Question 2

During the transport of a patient being ventilated with a Newport HT50 ventilator, the low air-way pressure/apnea indicator begins to blink red and the check proximal line alarm is triggered. What is the most appropriate action?
 
  a. Suction the pa-tient's airway. c. Check the circuit's integrity.
  b. Increase the pres-sure limit. d. Switch the mode of ventilation.


kxciann

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

ANS: B
Tidal volume = Inspiratory time (s)  Flow (L/s) = 0.75 s  0.83 L/min = 623 mL.

Answer to Question 2

ANS: C
The check proximal line alarm occurs during inspiration when the proximal pressure measured is significantly different from the internal backup pressure sensor measurement taken inside the ventilator. In addition to the message, the low airway pressure/apnea indicator blinks red. Causes include disconnections, kinking of the circuit, and a water-filled proximal sensor line.


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