Final answer:
The need for supplemental oxygen can be indicated by an SaO2 reading of 93%. Slow and shallow respirations may also warrant the use of supplemental oxygen.
Step-by-step explanation:
The need for supplemental oxygen can be indicated by an SaO2 reading of 93%. When the blood oxygen saturation level drops below 95%, supplemental oxygen may be required. Clear bilateral lung sounds are a sign of good air movement in the lungs and do not necessarily indicate the need for oxygen. Slow and shallow respirations can be a symptom of respiratory distress and may warrant the use of supplemental oxygen. Warm, dry skin is not directly related to the need for supplemental oxygen.