This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the desired mass median aerodynamic diameter (MMAD) for the effective inhalation of an ... (Read 19 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
on: Jul 16, 2018
What is the desired mass median aerodynamic diameter (MMAD) for the effective inhalation of an aerosolized bronchodilator?
 
  A. less than 1 m
  B. 1 m to 3 m
  C. 3 m to 5 m
  D. greater than 5 m

Question 2

Which of the following factors affects the moisture output of an HME? I. tidal volume II. respiratory rate III. patient temperature IV. inspiratory time
 
  A. I, II only
  B. III, IV only
  C. I, II, IV only
  D. I, II, III, IV


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chelseyj.hasty

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
A. Incorrect response: Particles smaller than 1 m diameter reach deep into the tracheobronchial tree, but are commonly removed during exhalation without producing any effect. Particles this size do not significantly deposit on lung tissue to have any effect.
B. Incorrect response: Medications that are intended for penetration and deposition among the peripheral airways should have an MMAD of 1 m to 3 m diameter. Pentamidine is an example of such a medication.
C. Correct response: Medications that have their effects on the large- to medium-sized airways need to be in the range of 3 m to 5 m diameter. Bronchodilators need to be in this particle size range.
D. Incorrect response: Particles greater than 5 m in diameter would not penetrate significantly into the respiratory tract.

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: As a patient's tidal volume increases, moisture output decreases. The amount of the output decrease depends on the efficiency of the device and its dead space. An increased respiratory rate decreases the moisture output of an HME. Increased temperature increases the moisture output. A decrease in the inspiratory time decreases the moisture output of an HME. Similarly, an increase in the expiratory flow caused by decreased lung compliance decreases the moisture output.


asd123

  • Member
  • Posts: 557
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

diana chang

  • Member
  • Posts: 288
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

An “Intermediate-Mass” Black Hole An “Intermediate-Mass” Black Hole
Effective listening skills demonstrate empathy to the patient and break down barriers to communicati Effective listening skills demonstrate empathy to the patient and break down barriers to communicati
The mass media not only reflect gender stereotypes but they also play a role in changing them. ... The mass media not only reflect gender stereotypes but they also play a role in changing them. ...
Women who are 65 and older have a lower median income from all sources than men in the same age ... Women who are 65 and older have a lower median income from all sources than men in the same age ...
Climate models the flow of mass and energy Climate models the flow of mass and energy
The Inclusive Classroom: Strategies for Effective Differentiated Instruction The Inclusive Classroom: Strategies for Effective Differentiated Instruction
Video: Physiology of Asthma

For a complete list of videos, visit our video library