Is blood sugar 119 normal for an 11-year-old child

by tina
(sacramento ca )






Question


My friend is diabetic and tested her sugar at my house last night. My son (11) was curious about it and as part of the explanation she let him test his own sugar. It was 119 four hours after he ate. Is this normal?


—Tina, Sacramento, California





Quick Answer


Tina, a home-meter reading of 119 mg/dL four hours after eating is not alarming by itself. However, it is not a standardized fasting test or a two-hour glucose-tolerance test, so it cannot prove that your son’s glucose is completely normal or diagnose diabetes.


If he feels well and has no increased thirst, frequent urination, new bed-wetting, unexplained weight loss, fatigue, or blurry vision, one result like this usually does not require emergency care. Routine finger-pricking is unnecessary. Discuss laboratory testing with his pediatrician only if symptoms, risk factors, or repeated abnormal readings are present.




Answer by Dr. Albana Greca, MD, MMedSc



Hello Tina,


Children do not normally have higher glucose simply because they are active or growing. The same laboratory diagnostic thresholds for diabetes are generally used in children and adults. What changes is how a result is interpreted according to timing, symptoms, test method, and whether the child already has diabetes.



What Does 119 mg/dL Four Hours After Eating Mean?


Four hours after a meal is neither a true fasting measurement nor a standard diagnostic after-meal test. Glucose can still be affected by the meal, snacks, activity, stress, illness, and normal meter variation.


A value of 119 mg/dL in a well child is not an emergency and, by itself, does not suggest diabetes. It also should not be compared with the treatment targets used for children who already have diabetes.



What Is a Normal Fasting Result?


For a child without known diabetes, a normal laboratory fasting plasma glucose is generally 70–99 mg/dL, or approximately 3.9–5.5 mmol/L, after at least eight hours without calories.



  • 100–125 mg/dL fasting: above normal and needs pediatric interpretation

  • 126 mg/dL or higher fasting: in the diabetes range when confirmed

  • 200 mg/dL or higher randomly with classic symptoms: can diagnose diabetes


Our normal fasting blood sugar guide explains why an eight-hour laboratory fast is different from a random home reading.



Can a Home Meter Diagnose Diabetes?


No. Home glucose meters are designed for monitoring, not diagnosis. Food residue on the fingers, too little blood, expired strips, poor strip storage, or normal meter variation can affect the result.


If a reading is unexpected, wash and dry the hands and repeat it with a new strip. Do not repeatedly test a healthy child out of curiosity. When testing is medically indicated, the pediatrician may order fasting plasma glucose, HbA1c, or another appropriate test. These are described in our blood tests for diabetes guide.




Symptoms That Need Prompt Medical Attention


Contact the pediatrician promptly if your son develops:



  • Unusual thirst or drinking much more than normal

  • Frequent urination or new bed-wetting

  • Unexplained weight loss despite normal or increased appetite

  • Persistent fatigue, irritability, blurry vision, or recurrent infections


Seek emergency care for vomiting, abdominal pain, deep or rapid breathing, fruity-smelling breath, severe dehydration, confusion, or marked drowsiness. These can indicate diabetic ketoacidosis, sometimes the first sign of type 1 diabetes.




Additional Parent Question: An 18-Month-Old With Glucose 146



Kim asked: “Our granddaughter’s blood sugar was 146. She ate around 11:30, and I tested it at 4:00. I am diabetic, and diabetes is also present on her mother’s side.”



A home reading of 146 mg/dL about four and a half hours after eating should not automatically be called normal because the child is an infant. There is no general healthy-infant range of 70–150 mg/dL for random home testing.


This one reading does not diagnose diabetes, but the child’s pediatrician should decide whether laboratory testing is appropriate, particularly if the result repeats or symptoms are present. Family history alone does not justify frequent finger-pricking of an 18-month-old.



What About a Fasting Home Reading of 126?


A separate comment currently on this page describes a child with a fasting home reading of 126 mg/dL. That should not be labeled normal because of morning hormones or a “high metabolism.” If a child has a true fasting laboratory glucose of 126 mg/dL or higher, it is in the diabetes range when confirmed. A home result should be repeated correctly and discussed promptly with the pediatrician rather than rechecked casually one month later.



When Should a Child Be Screened?


Any child with diabetes symptoms should be tested promptly. Risk-based screening for type 2 diabetes is generally considered after puberty begins or after age 10, whichever comes first, in children with overweight or obesity plus another risk factor. Type 1 diabetes can occur at any weight and may develop quickly.


Our type 1 diabetes symptoms guide explains the changes parents should recognize.




What to Do With One Unexpected Reading



  1. Confirm the unit and whether the child had eaten or drunk anything.

  2. Wash and dry the hands before any repeat test.

  3. Record symptoms, illness, medicines, and family history.

  4. Do not diagnose or exclude diabetes from one home reading.

  5. Ask the pediatrician about laboratory testing if readings repeat or symptoms appear.




What I want you to remember: 119 mg/dL four hours after eating is not concerning by itself, but it is not a diagnostic “normal range.” Children should not be assigned broad higher glucose limits simply because they are growing, and repeated or symptomatic abnormal readings deserve pediatric evaluation.




Written by: Dr. Albana Greca, MD, MMedSc, Family Physician

Medically reviewed by: Dr. Ruden Cakoni, MD, Endocrinologist

Last medically reviewed: August 4, 2026


Related Questions




Related Resources




References




Safety note: General education only. Children with symptoms, repeated abnormal readings, or severe high or low glucose need pediatric medical assessment.



Comments for Is blood sugar 119 normal for an 11-year-old child

Average Rating starstarstarstarstar

Click here to add your own Comment / Follow up

Jun 12, 2013
Rating
starstarstarstarstar 		Blood sugar for an 18 months
by: Kim

CONCERN: Our granddaughter blood sugar was at 146, and she ate around 11:30 I took it at 4:00 and the reading was 146.

I'm a diabetic and so is her mother's side of the family.

ANSWER: Hi Kim,

I do not see any problem in the blood sugar result of your granddaughter.

Please keep in mind that normal range of glycemia for children (including infants) varies from 70 up to 150 mg/dL.

As you see, your granddaughter's results fall under the normal range.

This is because children, particularly infants, have high rates of metabolism which requires sugar.

Therefore, as the body responds to the requests of its cells for increased energy; it provides them the quantity of sugar they need, which is high in fact.

That is why, every time you check blood sugar in children, you might find it high.

Sometimes, when children are hungry, the sugar results might be as low as 70, which is also perfectly normal.

It is good that keep recording her blood sugar; however, I want to remind that keep pricking this little child fingers might be painful.

Sometimes, it might affect her daily activities. Therefore, I would suggest to talk to her pediatrician to have his/her opinion on how often you should check your granddaughter's blood glucose and when you should really become worried.

Hope it helped!

Dr.Alba

Click here to add your own Comment / Follow up

Ask the Doctor now? Simply click here to return to Blood Sugar Charts & Normal Ranges.