A nurse is caring for an adolescent who is experiencing acute sickle cell crisis. Which of the following actions should the nurse take?

Acute sickle cell crisis occurs when sickled red blood cells obstruct microcirculation, leading to tissue ischemia, severe pain, and potential organ damage. Triggers include dehydration, hypoxia, infection, and stress. Nursing management focuses on relieving pain, improving oxygen delivery, and reducing blood viscosity. Adequate hydration is a key intervention because it helps decrease blood viscosity and promotes better circulation through the microvasculature. Rationale: A. Administering multiple units of platelets is not indicated in sickle cell crisis because the primary problem is vaso-occlusion by sickled red blood cells, not thrombocytopenia or platelet dysfunction. Platelet transfusion does not address the underlying pathophysiology and is not part of standard management. B. Preparing to administer potassium IV bolus is inappropriate because potassium supplementation is not a treatment for sickle cell crisis and may be dangerous if not indicated. IV potassium is reserved for documented hypokalemia and must be administered cautiously due to the risk of cardiac dysrhythmias. C. Providing hydration orally and IV is essential because increased fluid volume reduces blood viscosity and helps prevent further sickling of red blood cells. Adequate hydration improves circulation, supports tissue perfusion, and helps decrease pain associated with vaso-occlusion. This is a cornerstone of acute crisis management. D. Requesting a prescription for meperidine is inappropriate because this opioid is not recommended for sickle cell pain management due to its neurotoxic metabolite, normeperidine, which can cause seizures. Safer opioid options such as morphine or hydromorphone are preferred for controlling severe pain in sickle cell crisis.