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

Author Question: Overall, when mechanically ventilating a patient who has airflow obstruction, which of the following ... (Read 16 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
on: Jul 16, 2018
Overall, when mechanically ventilating a patient who has airflow obstruction, which of the following issues should the therapist bare in mind when managing this type patient compared with a person with normal lungs?
 
  A. This patient may require less minute ventilation.
  B. This patient may need to receive elevated peak inspiratory pressures.
  C. The delivery of lower than usual inspiratory flows should be expected.
  D. The acceptable oxygenation (Pao2) level of this type patient will lie in the range of 70 to 80 mm Hg.

Question 2

Which of the following physiologic and/or mechanical changes can the therapist expect a patient who is receiving volume-controlled ventilation for airflow obstruction to experience as a result of having narrowed airways? I. increased peak airway pressures II. overdistention injury to distal airways III. reduced risk for volutrauma IV. increased alveolar dead space
 
  A. I, IV only
  B. II, III only
  C. I, II, IV only
  D. I, III, IV only


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
A. Correct response: The therapist must realize that managing the mechanical ventilation of patients who have airflow obstruction, characterized by (1) air trapping and auto-PEEP, and (2) narrowed airways causing high resistance to airflow, may involve significant reduction of minute ventilation and resulting hypercapnia. This situation may be entirely normal for this type of patient who may be a CO2 retainer.
B. Incorrect response: See explanation A.
C. Incorrect response: See explanation A.
D. Incorrect response: See explanation A.

Answer to Question 2

ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: Narrowed airways produce a high resistance to flow that can cause high peak pressures. Much of this pressure is dissipated in providing gas flow through obstructed airways, and therefore does not overdistend distal alveoli. However, the heterogeneous distribution of airflow obstruction seen in most airways diseases means that less obstructed alveolar regions may be transiently exposed to these high peak pressures and be at risk for overdistention injury. Therefore the therapist should realize that a high peak pressure, even in the presence of a plateau pressure less than 30 cm H2O, should be prevented. Perhaps auto-PEEP causes overdistention injury as well.
D. Incorrect response: See explanation C.


Kikoku

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 16, 2018
Correct answers!


brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #3 on: Jul 16, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Patient registration form. Patient registration form.
A physical therapist exercising the patient’s leg in a physical therapy department. A physical therapist exercising the patient’s leg in a physical therapy department.
Aquamatic pad and heating unit provide dry heat treatment to a patient’s arm. Aquamatic pad and heating unit provide dry heat treatment to a patient’s arm.
Walkers help the patient ambulate safely. Walkers help the patient ambulate safely.
Patient Physical Status Classification Patient Physical Status Classification
Video: Wound Repair Animation

For a complete list of videos, visit our video library