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Author Question: When fired inside the mouth, what percentage of the drug dose delivered by a simple metered dose ... (Read 39 times)

darbym82

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on: Jul 16, 2018
When fired inside the mouth, what percentage of the drug dose delivered by a simple metered dose inhaler (MDI) deposits in the oropharynx?
 
  a. Approximately 20
  b. Approximately 40
  c. Approximately 60
  d. Approximately 80

Question 2

Before inspiration and actuation of a metered dose inhaler, the patient should exhale to which of the following?
 
  a. Total lung capacity
  b. Residual volume
  c. Functional residual capacity
  d. Expiratory reserve volume


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durant1234

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

ANS: D
The initial velocity and dispersion of the aerosol plume generate larger particles that decrease in size as they leave the pressurized MDI, resulting in approximately 80 of the dose leaving the actuator to impact and become deposited in the oropharynx.

Answer to Question 2

ANS: C


darbym82

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

alexanderhamilton

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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