The following two graphic loops show which of the following ...

[rosent76]

The following two graphic loops show which of the following conditions?
 
  a. Leak in the patient-ventilator circuit
  b. Increased airway resistance
  c. Decreased lung compliance
  d. Active exhalation

Question 2

The flow-volume loop below is representative of which of the following conditions?
 
  a. System leak
  b. Intrinsic PEEP
  c. Inadequate flow
  d. Active exhalation

[kbennett34]

Answer to Question 1

ANS: A
Because the expiratory volume does not return to zero in these graphics, a leak is present in the patient-ventilator circuit. Increased airway resistance would show as a scooped-out expiratory flow on the flow-volume loop, which may not end before the next breath. Decreased lung com-pliance would show as a duck bill on the pressure-volume loop. Active exhalation would make the volume tracing drop below zero.

Answer to Question 2

ANS: B
The expiratory flow in this loop does not return to zero. This shows that auto-PEEP or intrinsic PEEP is present.

[rosent76]

Wow, this really help

[ryansturges]

Gracias!