RN Nursing · Sickle Cell Disease · Practice question
A patient in sickle cell crisis has oxygen saturation of 88% on room air. What is the priority intervention?
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Warm compress
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Encourage ambulation
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Opioid administration
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✓
Apply supplemental oxygen
Answer & explanation
Correct: Apply supplemental oxygen
In a patient experiencing sickle cell crisis, the sickled red blood cells obstruct microvascular flow, leading to ischemia and tissue hypoxia. An oxygen saturation of 88% on room air is critically low — normal SpO₂ is 95% or higher. The most immediate and physiologically essential intervention is to apply supplemental oxygen. Increasing the available oxygen corrects the hypoxia, reduces the sickling stimulus (since deoxygenation promotes HbS polymerization and sickling), and helps prevent further end-organ damage. While pain management with opioids is a cornerstone of sickle cell crisis treatment and will be needed, correcting life-threatening hypoxia at 88% saturation takes physiological priority. Opioid administration addresses pain but does not directly correct the dangerous oxygen deficit. Warm compresses may help with localized pain by promoting vasodilation, but they do not address systemic hypoxia. Encouraging ambulation is contraindicated during an acute crisis; activity increases oxygen demand and can worsen sickling and vascular occlusion. Supplemental oxygen must be applied first to stabilize the patient before other supportive measures are implemented.
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