Low blood sugar levels measuring less than 70 milligrams per deciliter are immediately treated by taking 15 to 30 grams of quickly absorbed carbohydrates, such as candies, juices, fruits and glucose tablets or gel, explains the University of California San Francisco. Specific examples include honey, apple juice, regular soda, fat free milk and gum drops. Bananas, apples, oranges, raisins and grapes are fruits that quickly raise blood sugar levels as well.
Glucose tablets are available over the counter, and they help with remedying low blood sugar, according to Healthline. Those with diabetes are advised to keep snacks with high levels of carbohydrates on hand. After eating, it is necessary to wait 15 minutes before testing the blood sugar level again. If it is still below the minimum amount, the patient needs to eat an additional 15 grams of carbohydrates. This process is repeated until the blood sugar level begins to rise.
Hypoglycemia or low blood sugar can cause fainting, explains WebMD. A prescription medication called glucagon is then injected into the affected patient to raise his blood sugar. People who have low blood sugar when they haven't eaten are asked to have a protein snack or eat a complex carbohydrate before going to bed. Peanut butter crackers and cheese crackers are examples of carbohydrate and protein sources.