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Author Question: The pressure at which large numbers of alveoli become overinflated in a patient with acute ... (Read 15 times)

Yolanda

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on: Jul 16, 2018
The pressure at which large numbers of alveoli become overinflated in a patient with acute res-piratory distress syndrome (ARDS) is located on the static pressure-volume curve at which of the following?
 
  a. Upper inflection point
  b. Lower inflection point
  c. Peak inspiratory pressure
  d. Between the lower and upper inflection points

Question 2

Which of the following indicates an increase in airway resistance in a patient receiving mechani-cal ventilation with a constant tidal volume?
 
  a. Increased peak inspiratory pressure (PIP) and transairway pressure (PTA)
  b. Increased static compliance
  c. Increased plateau pressure (Pplateau) and stable PIP
  d. Decreased dynamic compliance


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cici

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

ANS: A
The upper inflection point indicates a point at which large numbers of alveoli are becoming over-inflated.

Answer to Question 2

ANS: A
Airway resistance can be estimated for a ventilated patient using transairway pressure (PTA). When peak inspiratory pressure (PIP) increases and plateau pressure (Pplateau) remains relatively unchanged, there is an increase in PTA. An increased Pplateau and a stable PIP indicate a decrease in static compliance.


Yolanda

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Reply 2 on: Jul 16, 2018
:D TYSM

nothere

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Reply 3 on: Yesterday
Wow, this really help

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