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Hypocalcemia

  • Overview

    Hypocalcemia is a condition in which there is too little calcium in a baby's blood. A common form of hypocalcemia in babies is called neonatal hypocalcemia. This condition may occur at different times for different reasons:

    • early hypocalcemia - occurs in the first three days of life
    • late hypocalcemia - develops between the fifth to tenth days of life, usually after several days of formula feedings

    How Boston Children's Hospital approaches hypocalcemia

    If your baby has hypocalcemia, she'll likely spend some time in our neonatal intensive care unit (NICU), where her nutrition will be carefully monitored. Many babies in the NICU receive essential fluids and electrolytes through a tube in a vein called intravenous (IV) fluids. Some babies may need a special preparation called parenteral nutrition, which contains nutrients they need until they are able to take milk feedings.

    • The contents of IV fluids and perenteral nutrition are carefully calculated for each baby. Calories, protein, fats and electrolytes, including sodium, potassium, chloride, magnesium and calcium are all important components.
    • Babies need calories, protein and fats for adequate growth and development. Fluids, electrolytes and vitamins are necessary for her body to function properly.
    • Blood tests help determine how much of each component a baby needs and the amount of each nutrient can be increased or decreased accordingly.
    • We will weigh your baby regularly and monitor her urine output.

    What causes hypocalcemia?

    The causes of early hypocalcemia are unknown, while late hypocalcemia has a number of known causes, related primarily to calcium and phosphorous levels in the body as well as parathyroid hormone function.

    What are the symptoms of hypocalcemia?

    Symptoms of hypocalcemia may not be obvious in newborn babies. The following are the most common symptoms of hypocalcemia:

    • irritability
    • muscle twitches
    • jitteriness
    • tremors
    • poor feeding
    • lethargy
    • seizures

    »
    Boston Children's Hospital 
    300 Longwood Avenue
    Boston MA 02115
     617-355-8076
     fax: 617-730-0902
    +
    Winchester Hospital
    41 Highland Avenue
    Winchester MA 01890
     781-756-2240
    South Shore Hospital
    55 Fogg Road
    Weymouth MA 02190
     781-340-8373
    MetroWest Medical Center
    115 Lincoln Street
    Framingham MA 01702
     508-383-1474
    Boston Children's Hospital 
    85 Herrick Street
    Beverly MA 01915
     978-922-3000 x2270


  • In depth text

  • Tests

    In addition to a complete medical history and physical examination, your doctor will test your baby's blood for calcium.

  • Hypocalcemia may get better without treatment in some cases, especially if your baby has no symptoms. However, specific treatment for hypocalcemia will be determined by your baby's physician and may include:

    • supplemental calcium gluconate (a form of calcium that is easily absorbed) given by mouth
    • intravenous (IV) calcium gluconate
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