Which of the following is a critical value for the key clinical indicators in hypercapnic respiratory failure in an adult?
1. pH 7.25
2. Ventilatory rate 35 breaths/min
3. MIP ?25 cm H2O
4. VD/VT 40%
a. 1
b. 2
c. 1, 2
d. 3, 4
C
In an adult, a respiration of more than 30 or fewer than 10 breaths per minute may be a key clinical indicator of hypercapnic ventilatory failure.
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