A small pneumothorax is noted on chest x-ray although the patient demonstrates no respiratory distress. The patient's vital signs are:
â‹… Respiratory Rate: 16 breaths per minuteâ‹… Sp02: 99
The most appropriate intervention at this time is ________.
1) Observation and reassessment
2) Chest tube insertion
3) Administration of oxygen
4) Immediate intubation