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Author Question: Calculate the value of the elastance when the static compliance is 10 ml/cm H2O. A. 10 cm H2O/ml ... (Read 57 times)

vHAUNG6011

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Calculate the value of the elastance when the static compliance is 10 ml/cm H2O.
 
  A. 10 cm H2O/ml
  B. 1.0 cm H2O/ml
  C. 0.1 cm H2O/ml
  D. 0.01 cm H2O/ml

Question 2

On the flow-time scalar illustrated below, identify the component of the tracing labeled b.
 
  A. point of end-inspiration
  B. point of beginning of expiration
  C. expiratory hold maneuver
  D. inspiratory hold maneuver



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hugthug12

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Answer to Question 1

ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: Elastance (E) he reciprocal of compliance (C) unit for elastance is cm H2O/ml. The unit for compliance is ml/cm H2O. A compliance of 10 ml/cm H2O is equivalent to 0.1 cm H2O/ml, that is,
and

D. Incorrect response: See explanation C.

Answer to Question 2

ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Incorrect response: See explanation D.
D. Correct response:
The scalar presented here is a square wave (rectangular) flow-time tracing frequently seen during volume-control ventilation. Label a reflects the constant flow delivered throughout the time the tidal volume is being delivered by the ventilator to the patient.Label b represents an inspiratory pause, which prolongs inspiratory time, but does not involve any additional tidal volume delivery. In fact, the flow during the inspiratory pause is zero. Once the inspiratory pause concludes, the flow descends below the baseline signifying the onset of expiration (end-inspiration). The expiration continues as the flow tracing changes direction, and moves upward toward the baseline, as shown by label c. When the flow tracing returns to the baseline (assuming no expiratory hold maneuver is initiated), expiration ends




vHAUNG6011

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Reply 2 on: Jul 16, 2018
Excellent


isabelt_18

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Reply 3 on: Yesterday
:D TYSM

 

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