Which is NOT a symptom of polycythemia in newborns?

High blood pressure is not typically recognized as a symptom of polycythemia in newborns. Polycythemia refers to an increased concentration of red blood cells in the bloodstream, which can lead to a variety of complications due to increased blood viscosity.

Newborns with polycythemia may exhibit symptoms such as apnea, poor suck, and seizures. Apnea can occur due to the increased blood volume and possible cardiovascular instability, leading to periods of interrupted breathing. Poor feeding or poor suck reflex is common because the baby may be lethargic or have altered muscle tone resulting from the condition. Seizures in polycythemic infants may arise from issues related to altered cerebral perfusion or metabolic imbalances.

Given that these symptoms are more directly linked to the physiological changes occurring in polycythemia, high blood pressure does not directly correlate and is not a common symptom associated with the condition in newborns.