A 32-year-old patient with sickle cell crisis has hypoxia on arrival. Which action should you implement first?

A 32-year-old patient with sickle cell crisis has hypoxia on arrival. Which action should you implement first?

• A. Give morphine sulfate 4–8 mg IV every hour as needed
• B. Administer 100% oxygen via a nonrebreather mask
• C. Start a 14-gauge IV and infuse normal saline at 200 mL/hr
• D. Give pneumococcal and Hib vaccines

Answer: (B)

In acute sickle cell crisis, the priority is to correct hypoxemia because low oxygen levels promote HbS polymerization and red cell sickling, which worsens vaso-occlusion and tissue ischemia. Administering 100% oxygen via a nonrebreather mask provides the maximum inspired oxygen to quickly improve arterial oxygenation, reduce ongoing sickling, and protect organ function. Pain relief and IV fluids are important parts of management, but they don’t address the immediate threat posed by hypoxia; you treat the low oxygen first. Vaccines are not part of acute crisis management. After oxygenation is established, you would proceed with analgesia and hydration per protocol.

In acute sickle cell crisis, the priority is to correct hypoxemia because low oxygen levels promote HbS polymerization and red cell sickling, which worsens vaso-occlusion and tissue ischemia. Administering 100% oxygen via a nonrebreather mask provides the maximum inspired oxygen to quickly improve arterial oxygenation, reduce ongoing sickling, and protect organ function. Pain relief and IV fluids are important parts of management, but they don’t address the immediate threat posed by hypoxia; you treat the low oxygen first. Vaccines are not part of acute crisis management. After oxygenation is established, you would proceed with analgesia and hydration per protocol.