Which of the following could be early warning signs that a pneumothorax is enlarging? 1. Desaturation of pulse oximetry reading 2. Development of a fever 3. Increased respiratory rate 4. Mental confusion
a. 1, 2, and 3 only
b. 1 and 3 only
c. 2 only
d. 1, 2, 3, and 4
ANS: B
During observation, it is important to record the respiratory rate and any signs of deteriorating respiratory function. An oximetry decrease can be an early warning of pneumothorax enlarge-ment. Any deterioration indicates that the pneumothorax must be drained.
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