Have you ever looked at someone lying on a hospital bed and seen a bottle of saline attached to their arm? We often refer to all of them as 'giving saline.' But there's more to those bottles than just that. Today we're talking about Dextrose or glucose solution, a life-saving fluid that's often used in hospitals.
Simply put, what is Dextrose?
Dextrose is a very simple thing. This is another medical use of the glucose we talk about every day. To be precise, this is a simple sugar made from plants, especially corn. The cells in our body need energy to work. Just like gasoline for a car. That energy is the main fuel that our bodies use to build. So Dextrose is a pure glucose energy source that can be delivered directly to the blood.
In what situations is this medicine used?
Dextrose solution is used in a hospital for three main purposes.
1. As a nutritional support
Imagine that someone is in a situation where they are unable to eat or drink or absorb nutrients from their intestines after a major surgery, due to a serious infection, or due to some other medical condition. In such a situation, it is impossible to fast for days. The body loses energy. In such cases, the necessary nutrition is given directly to the body through a vein. We call this ``Total Parenteral Nutrition - TPN``. Here, Dextrose is the main source of energy in this nutritional mixture. That is, the energy obtained from food is given directly to the blood.
2. When blood sugar levels are low (Low Blood Sugar)
This is the most common and urgent use of Dextrose. We call hypoglycemia when blood sugar levels suddenly drop dangerously low. This can happen when a diabetic takes too much insulin, misses a meal, or has other medical conditions.
Here the patient,
- Dizziness
- Trembling
- Excessive sweating
- Confusion
- Things like losing consciousness can happen later .
In an emergency like this, if it is difficult to give the patient sugar by mouth, the best way to quickly restore the sugar level is to inject Dextrose solution into a vein. This immediately provides the brain and body with the energy they need.
3. When the potassium level in the blood increases (High Potassium Levels)
This is a bit complicated. Our blood contains a mineral called potassium. It is essential for the functioning of the heart, nerves, and muscles. However, if the level of potassium in the blood becomes dangerously high, whether due to kidney problems or other reasons, it can cause the heart to stop working.
In such cases, doctors administer Dextrose solution along with insulin. Then, with the help of insulin, the excess potassium in the blood goes into the body's cells. That is, potassium is removed from the blood, quickly reducing the risk to the heart.
Things to tell your doctor before giving this medicine
Even though this is a medication given in a hospital setting, it is important that your medical team is aware of your health history. So be sure to tell them if you have any of the following conditions:
| Health condition or habit | Why is notification important? |
|---|---|
| Diabetes | Because dextrose is sugar, blood sugar levels should be carefully monitored when given to diabetics. |
| Kidney Disease | When the kidneys are not functioning properly, the balance of fluids and salts in the body can change. |
| Bleeding in the brain or spinal cord | In some cases, changes in blood sugar levels can affect these conditions. |
| Alcohol addiction | Alcohol consumption affects the body's vitamin and nutrient levels, so care should be taken during treatment. |
| Allergy to dextrose, corn, or anything else | Since dextrose is made from corn, it is essential to inform the doctor if you have a corn allergy. |
| If you are pregnant or expecting a baby | As with any medication, it is important to inform the doctor in these cases. |
| If a mother is breastfeeding her child | Since medications taken by the mother can pass to the baby through breast milk, inform the doctor about this as well. |
Remember, this is an intravenous fluid given in a hospital by a doctor or trained nursing staff. This is not a medicine you can take home or use for yourself.
Can this medicine be given to children?
Yes, this medicine can be given to children under the supervision of a pediatrician when necessary. However, there are some things to be careful about. Things like the dosage and the speed of administration should be carefully calculated according to the child's weight and condition.
What happens if you take too much medicine?
Since this treatment is carried out under medical supervision in a hospital, the risk of overdose is very low. The medical team will constantly monitor your condition. If you think something has happened, inform the doctor or nurse immediately. In the event of an emergency, they will take the necessary measures. If there is any suspicion of poisoning, they will contact the National Poisons Information Centre at the Colombo National Hospital for advice, or refer you to the hospital's Emergency Treatment Unit (ETU).
What are the possible side effects of this medicine?
Like any medicine, Dextrose can cause some side effects. However, most of the time, these are minor.
| Type of side effect | Symptoms |
|---|---|
| Things to tell your doctor or nurse immediately | |
| Allergic Reactions | Skin rash, itching, swelling of the lips, tongue or face. |
| Symptoms of high blood sugar (Hyperglycemia) | Dry mouth, excessive thirst, frequent urination, nausea, stomach cramps, fruity breath odor. |
| Other | Confusion. |
| Things that are usually not serious, but should be reported if they persist | |
| Minor injuries | Dry mouth, pain or swelling where the saline was administered. |
Can there be problems with other medications?
Dextrose solution usually does not cause any major problems with other medications. However, it is very important to tell your doctor about all the medications you are taking (medicines for other conditions, vitamins, herbal remedies, and supplements). Also, tell your doctor if you smoke or drink alcohol. Some things can affect the treatment you are given.
Take-Home Message
- Dextrose is a glucose (sugar) liquid given through a vein in hospitals. It provides energy to the body.
- It is mainly used to provide nutrition, when blood sugar is low, and when potassium levels in the blood are high.
- This is a medicine that is only given in a hospital, under medical supervision. It cannot be taken home.
- If you have conditions such as diabetes, kidney disease, or allergies, tell your doctor before treatment.
- If you experience any unusual symptoms (skin lesions, difficulty breathing, excessive thirst) during treatment, notify the medical team immediately.
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