In a patient with sickle cell disease presenting with chest pain, fever, tachypnea, and hypoxemia, what is the most likely diagnosis?

In a patient with sickle cell disease presenting with chest pain, fever, tachypnea, and hypoxemia, what is the most likely diagnosis?

• A. Acute bronchitis
• B. Asthma
• C. Pneumothorax
• D. Acute chest syndrome

Answer: (D)

In sickle cell disease, a new pulmonary process presenting with chest pain, fever, rapid breathing, and low oxygen is most consistent with acute chest syndrome. This condition arises from sickling in the lung causing pulmonary vaso-occlusion and inflammation, often with infection, leading to chest pain, fever, tachypnea, hypoxemia, and a new infiltrate on chest imaging. It is the most common and potentially life-threatening pulmonary complication in SCD, so this constellation of findings should point you toward ACS. Other conditions like bronchitis, asthma, or pneumothorax don’t typically produce the same combination of fever with hypoxemia and a new infiltrate in the setting of sickle cell disease.

In sickle cell disease, a new pulmonary process presenting with chest pain, fever, rapid breathing, and low oxygen is most consistent with acute chest syndrome. This condition arises from sickling in the lung causing pulmonary vaso-occlusion and inflammation, often with infection, leading to chest pain, fever, tachypnea, hypoxemia, and a new infiltrate on chest imaging. It is the most common and potentially life-threatening pulmonary complication in SCD, so this constellation of findings should point you toward ACS. Other conditions like bronchitis, asthma, or pneumothorax don’t typically produce the same combination of fever with hypoxemia and a new infiltrate in the setting of sickle cell disease.