Ch 40: Hypoventilation and Respiratory Muscle Dysfunction Flashcards
1
Q
Respiratory muscle function can be impaired by decreased levels of what electrolytes?
A
phosphate
calcium
magnesium
potassium
(p. 685)
2
Q
Specifically, hypophosphatemia can impair the contractile properties of the ________ during acute respiratory failure.
A
diaphragm
p. 685
3
Q
Observation of diaphragmatic weakness in the setting of hypophosphatemia was studied by Aubier and associates in 8 mechanically ventilated patients. Diaphragmatic function was quantified before and after phosphorus replacement therapy by recording transdiaphragmatic twitch pressure elicited by _______ _____ stimulation.
A
phrenic nerve
p. 685
