Which finding best describes the presentation of acute chest syndrome in sickle cell disease?

Which finding best describes the presentation of acute chest syndrome in sickle cell disease?

• A. Chest pain with productive cough
• B. Fever only
• C. Hypoxemia with fever
• D. Normal oxygen saturation

Answer: (C)

Acute chest syndrome arises from sickling in the lungs that causes inflammation and impaired gas exchange. Fever reflects the inflammatory/infectious process, while hypoxemia shows the resulting disturbance in oxygen transfer. Together, fever with low oxygen saturation best fits the ACS picture, since infection alone or chest symptoms without oxygen impairment don’t capture the gas-exchange failure seen in ACS. A normal oxygen saturation would argue against ACS in the acute setting. In practice, new pulmonary infiltrates on imaging accompany this presentation, reinforcing the diagnosis.

Acute chest syndrome arises from sickling in the lungs that causes inflammation and impaired gas exchange. Fever reflects the inflammatory/infectious process, while hypoxemia shows the resulting disturbance in oxygen transfer. Together, fever with low oxygen saturation best fits the ACS picture, since infection alone or chest symptoms without oxygen impairment don’t capture the gas-exchange failure seen in ACS. A normal oxygen saturation would argue against ACS in the acute setting. In practice, new pulmonary infiltrates on imaging accompany this presentation, reinforcing the diagnosis.