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King Fahad Medical City

Health Education / Stay Healthy / DM

​Blood Sugar Levels:

A Healthy Person




​Less than 5.7

​Between 5.7 and 6.4

​6.5 and more

Fasting blood Suger

​less than 100 dL\mg (5.6 mmol\L)

​between 100 and 125 dL\mg (5.6 - 6.9 mmol\L)

​More than 126  dL\mg (7 mmol\L)

Glucose tolerance test

​less than 140 dL\mg (5.6 mmol\L)

​between 140 and 199 dL\mg (7.8 - 11 mmol\L)


​More than 200 dL\mg (11.1 mmol\L)



  • Frequent urination
  • Incresed thirst
  • Fatigue
  • Blurred vision
  • Numbness of limbs
  • Mood swings
  • Fruity-Smelling breath
  • Weight loss
  • Coma with elevated blood sugar level


What should you do if your glucose level was more than 240dL\mg?

  • Drink plenty of water
  • Limit intake of fatty and sugary foods
  • Take the corrective dose as prescribed from the doctor or the health education
  • Test your sugar level every two hours


Hypoglycemia symptoms:

  • An irregular heart rhythm
  • Fatigue
  • Pale skin
  • Shakiness
  • Sweating
  • Hunger


If a patient has symptoms of low sugar (semi-conscious):

It is recommended to use the 15-minute rule which is to consume 15 grams of carbohydrates and then wait 15 minutes and measure the level of sugar in the blood, he must increase his blood sugar to a minimum of 3.9 mmoL / L or 70 dL\mg then eat a snack.


  • 1\2 cup apple juice or orange.
  • A cup of milk.
  • 4 glucose tablets.
  • 2 teaspoons sugar.
  • 2 table-spoons raisin.
  • 3 teaspoons honey.
  • 2 tea-spoons jelly.


In the case of unconsciousness of the patient:

Use the glucagon needle. When the patient regains consciousness, he should be given a snack immediately, while he or she continues to check blood sugar with a blood glucose meter. Don't forget to mention it to the doctor.