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Hyperviscosity - newborn

  • Alternative Names

    Neonatal polycythemia


    Symptoms

    Symptoms may include:

    • Extreme sleepiness
    • Feeding problems
    • Seizures
    • Very ruddy (red) skin color

    Signs and tests

    There may be signs of breathing problems, kidney failure, and newborn jaundice.

    If the baby has symptoms of hyperviscosity, a blood test to count the number of red blood cells will be done. This test is called a hematocrit.

    Other tests may include:

    • Blood gases to check oxygen level in the blood
    • Blood sugar (glucose) to check for low blood sugar
    • Blood urea nitrogen (BUN), a substance that forms when protein breaks down
    • Creatinine, a substance produced by muscles that can build up in the blood if the kidneys aren't working properly
    • Urinalysis