Which of the following therapeutic modalities would be useful for a COPD patient who has failed numerous spontaneous breathing trials because of respiratory muscle weakness, and is still intubated and receiving invasive positive-pressure ventilation?
A. negative pressure ventilation
B. noninvasive positive-pressure ventilation
C. sedation and controlled mechanical ventilation
D. pressure support ventilation
ANS: B
A. Incorrect response: See explanation B.
B. Correct response: When patients with COPD exacerbations are intubated because they are not candidates for NPPV initially, or fail a trial of NPPV, clinical research demonstrates that NPPV can be used to permit earlier extubations even with patients who have failed multiple T-piece trials, and early extubation to NPPV increases eventual weaning rates. The strength of evidence for COPD exacerbation justifies use of NPPV.
C. Incorrect response: See explanation B.
D. Incorrect response: See explanation B.
You might also like to view...
Three-fourths of a grain is ________ in the apothecary system
a. ¾ b. ¾ gr c. gr ¾ d. All of the above
Which of the following is NOT a component of the Cincinnati Prehospital Stroke Scale?
a. Facial droop b. Pupil reaction c. Arm drift d. Speech
A patient in early shock informs you that he has had severe diarrhea and vomiting over the past four days. Given this history, you would recognize the pathophysiology of the shock is probably related to:
a. the loss of red blood cells. b. decreased formed elements in the blood. c. leakage of the capillaries. d. the loss of plasma volume.
Hereditary spherocytosis is the result of a defect in:
a. Hemoglobin structure b. Red cell membrane lipid bilayer c. Red cell membrane skeletal proteins d. Rate of synthesis of globin chains