What lung problem is ventilation/perfusion () scanning used to ...

[karlynnae]

What lung problem is ventilation/perfusion () scanning used to detect?
 
  a. Asthma
  b. Pulmonary embolism
  c. Pneumonia
  d. Lung cancer

Question 2

Airway resistance (Raw) is usually defined as:
 
  a. the pressure difference between the ends of the airway divided by the flow rate of gas moving through the airway.
  b. the sum of the pressures between the ends of the airway divided by the flow rate of gas moving through the airway.
  c. the pressure difference between the ends of the airway multiplied by the flow rate of gas moving through the airway.
  d. the sum of the pressures between the ends of the airway multiplied by the flow rate of gas moving through the airway.

[Liddy]

Answer to Question 1

ANS: B
Ventilation/perfusion scanning (also known as scanning) is often used in evaluating for pulmo-nary embolism.

Answer to Question 2

ANS: A
Airway resistance is computed as the change in pressure divided by the flow.

[karlynnae]

Thanks for the timely response, appreciate it

[mammy1697]

Excellent