Author Question: What are the causes of continued ventilator dependency in a patient whose respiratory failure ... (Read 43 times)

09madisonrousseau09 · **on:** Jul 16, 2018

What are the causes of continued ventilator dependency in a patient whose respiratory failure stabilizes and begins to reverse? I. gas exchange concerns II. mechanical issues III. inappropriate ventilator settings IV. inability to ascertain time to initiate weaning

A. I, II only
B. III, IV only
C. I, III, IV onlyD. I, II, III, IV

Question 2

According to the Task Force (described on page 318 in the text), what measurement or indicator is best to judge the success or failure of an SBT?

A. The success or failure of an SBT is not based on one particular measurement or indicator.
B. RSBI is stated to be the best measurement of success or failure of an SBT.
C. The CROP index is held to be the best indicator of success or failure of an SBT.
D. The nature of the clinical condition or disease process that was responsible for ventilator commitment correlates best with success or failure of an SBT.

Anna · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Incorrect response: See explanation D.
D. Correct response: As respiratory failure stabilizes and begins to reverse, clinical attention should shift to the ventilator withdrawal process. In these patients, continued ventilator dependency is caused by two fundamental problems: (1) disease-imposed problems, such as mechanical/gas exchange issues that continue to require positive-pressure ventilation, and (2) clinician-imposed issues, including either clinician delay in recognizing the ability of a patient to have the ventilator discontinued or inappropriate ventilator settings that overload respiratory muscles, preventing recovery.

Answer to Question 2

ANS: A
A. Correct response: The task force recommends that no single measurement or indicator be used to judge the success or failure of an SBT. Rather, an integrated assessment of the respiratory pattern, hemodynamic status, gas exchange, and patient comfort should be used.
B. Incorrect response: See explanation A.
C. Incorrect response: See explanation A.
D. Incorrect response: See explanation A.