This topic contains a solution. Click here to go to the answer

Author Question: Which of the following conditions are common reasons for SBT failure? I. respiratory drive failure ... (Read 136 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
Which of the following conditions are common reasons for SBT failure? I. respiratory drive failure II. oxygenation failure III. cardiovascular failure IV. muscle failure
 
  A. I, IV only
  B. II, III only
  C. I, III, IV only
  D. I, II, III, IV

Question 2

A patient has been breathing 5 cm H2O of pressure support ventilation for 1 hours. What patient characteristics should the therapist consider to determine readiness for extubation? I. Does the patient have an FEV1 greater than 75 of predicted? II. Does the patient have the ability to generate an adequate cough? III. Does the patient have thick secretions? IV. Is the patient capable of following commands?
 
  A. I, III only
  B. II, IV only
  C. I, III, IV only
  D. II, 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

mk6555

  • Sr. Member
  • ****
  • Posts: 310
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: Common causes for failure of ventilator discontinuation are (1) respiratory drive failure: inability to generate a reliable respiratory drive because of central nervous system depression or the presence of sedative or neuromuscular blockade; (2) oxygenation failure: rapid hemoglobin desaturation from loss of expiratory pressure and/or Fio2; (3) cardiovascular failure: dysrhythmias and/or hypotension from catechol release, edema formation, or coronary hypoxemia caused by the loss of ventilatory support; and (4) muscle failure: muscle overload from abnormal respiratory system impedances in the setting of weakened, fatigued, or metabolically disturbed muscles.

Answer to Question 2

ANS: B
A. Incorrect response: See explanation B.
B. Correct response: Once the patient has demonstrated the ability to breathe spontaneously for 90 to 120 minutes, consideration must be given to remove the ETT. That decision should be based on the following criteria. (1) Does the patient have the ability to protect the airway? The patient must demonstrate a strong cough and exhibit a minimal need for suctioning. (2) Is the patient alert and capable of following commands? This criterion is the rationale for reassessing and minimizing sedation on a regular basis. (3) Would reintubation of this patient be difficult? In borderline cases, the decision to remove the artificial airway may need to take into account the difficulty anticipated in replacing the airway if needed.
C. Incorrect response: See explanation B.
D. Incorrect response: See explanation B





 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

For a complete list of videos, visit our video library