Hypoglycemic Reaction (Infant/Toddler)

Blood sugar is also called glucose. It's used as energy by the body. Sometimes blood sugar drops too low (hypoglycemia). This causes a hypoglycemic reaction. Symptoms of a hypoglycemic reaction in infants include:

• Being irritable or jittery.
• Shaking (tremors).
• A high-pitched cry.
• Feeding problems.
• Lack of energy (lethargy) or limpness.
• Skin has a blue color.
• Very fast breathing or heart rate.

Symptoms of a hypoglycemic reaction in older children include:

• Feeling hungry, nervous, or angry.
• Acting out.
• Nightmares or waking up crying out.
• Headache.
• Sweating.
• Feeling weak.
• Confusion.
• In severe cases, having a seizure or fainting (losing consciousness).

Low blood sugar may occur in healthy children who have not eaten for a while. It can also happen in children who have been vomiting or have had diarrhea. Some children are more likely to have hypoglycemic reactions. These include children with a metabolic or digestive problem, a hormone deficiency, or diabetes. Taking diabetes medicine or alcohol by accident may also cause low blood sugar.

This condition is diagnosed in children by testing blood. Low blood sugar must be raised to prevent a serious problem. First, try raising your child's blood sugar by giving a food or drink that is high in sugar. If that doesn't work, your child may be given an I.V. (intravenous) sugar solution. Or they may get a shot (injection) of glucagon. This is a medicine that helps raise blood sugar levels. A baby's blood may be tested again after they skip one or two feedings. For older children, blood may be tested again after not eating overnight. This is called a fasting test. If your child still has low blood sugar, the doctor will test for other causes.

If your child has diabetes, the doctor will prescribe medicine to control blood sugar levels. Follow instructions for giving this medicine.

• Know your child's signs of hunger and low blood sugar. Hypoglycemic reactions most often occur before meals.
• Make sure your child has small, frequent meals. If they are not eating well, talk with your child's doctor.
• If your child has diabetes, limit hard physical activity until the diabetes is under control.
• If you have diabetes and are breastfeeding your baby, watch your glucose levels closely.
• If you are instructed to check your baby's blood sugar, do so as directed.

At the first sign of low blood sugar, give your child a food or drink high in glucose. Make sure your child can eat and drink safely. Depending on your child's age, high-glucose options include:

• For babies. Give formula or breast milk. If your baby can't swallow, glucagon injections or I.V. glucose may be needed.
• For toddlers. Try 4 ounces of fruit juice.

Follow up with your child's doctor as advised. If lab tests were done, contact the doctor for results as instructed.

Call 911anytime you think your child may need emergency care. For example, call if:

• Your child is having a seizure.
• Your child is not able to wake up.
• Your child is not able to eat or drink safely.

Contact the doctor now or seek immediate medical care if:

• Your child has a fever higher than 100.4°F (38°C), or a temperature lower than what is normal for your child.
• Your child's low blood sugar symptoms come back (see symptoms above).