A 66-year-old female complains of burning pain on the right side of her back. She tells you the pain began two days ago, and she can no longer tolerate it. You observe a red rash along the eighth intercostal space on the right side of her back. You should next:

• A. administer oxygen.
• B. assess her vital signs.
• C. apply a dry, sterile dressing.
• D. cool the affected area.

Answer: (B)

When someone, especially an older adult, has sudden, burning pain with a vesicular, band-like rash along a dermatome, think herpes zoster. In the field, the immediate priority is to perform a rapid assessment of vital signs to determine overall stability and guide next steps. Checking heart rate, blood pressure, respiratory rate, oxygen saturation, and temperature helps you identify issues such as fever, dehydration, hypoxia, or shock, and tells you how urgently the patient needs transport or intervention.

Oxygen is only indicated if there are signs of hypoxia or respiratory distress, not automatically for a shingles rash. A dry dressing or cooling the area might provide comfort, but they don’t address the patient’s overall stability and potential complications. Focusing on vitals first ensures you’re making decisions based on how the patient is doing overall, not just the rash and pain.