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

Author Question: Which of the following lung units would be most prone to air-trapping? a. One with high ... (Read 34 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Jul 16, 2018
Which of the following lung units would be most prone to air-trapping?
 
  a. One with high resistance and low compli-ance
  b. One with low resistance and low compli-ance
  c. One with normal resistance and low com-pliance
  d. One with high resistance and high com-pliance

Question 2

What factors contribute to the development of auto-positive end expiratory pressure (PEEP)? 1. High expiratory Raw 2. High inspiratory flows 3. Inadequate expiratory time
 
  a. 1 and 2 only
  b. 1 and 3 only
  c. 2 and 3 only
  d. 1, 2, and 3


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Air-trapping occurs with incomplete emptying of lung units. Lung units prone to air-trapping are those with long-time constants (i.e., with high resistance or high compliance).

Answer to Question 2

ANS: B
By effectively increasing the time constant of the lung, high expiratory resistance prolongs exha-lation to the point at which air trapping begins (Figure 46-21, B). Any shortening of the expira-tory time (Figure 46-21, C) aggravates the problem and increases both distal airway pressure and lung volume (auto-PEEP).


RRMR

  • Member
  • Posts: 557
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Progression of changes leading to lung cancer Progression of changes leading to lung cancer
Position of lung lobes in relation to anatomical landmarks Position of lung lobes in relation to anatomical landmarks
Electron micrograph of pre-rRNA transcription units from the nucleolus of a frog Electron micrograph of pre-rRNA transcription units from the nucleolus of a frog
Deconvolution fluorescence microscopy yields high-resolution optical sections th Deconvolution fluorescence microscopy yields high-resolution optical sections th
Moderate to high physical activity in PE classes is one component of a successful prevention effort ... Moderate to high physical activity in PE classes is one component of a successful prevention effort ...
Cells are the basic units of life Cells are the basic units of life
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library