How to donate blood for sugar? Preparing for the analysis, its interpretation and methods used

One of the main methods that can detect various deviations in the work of the human body is the study of blood for the total amount of sugar. In particular, it allows to diagnose such a serious disease as diabetes. And today we'll talk about how to donate blood for sugar.

In what cases can this analysis be assigned?

The doctor gives an appointment to conduct such an analysis if there is a suspicion of developing diabetes, because it is specifically for this disease and is characterized by an increase in blood glucose levels.

The study is mandatory if:

• There are complaints of constant thirst, accompanied by severe dryness in the mouth;
• There is a sharp weight loss;
• Urination increases;
• There is rapid fatigue.

The analysis is mandatory for people with excess weight, as well as hypertensive patients.

Passing the analysis

If we talk about how to donate blood for sugar, then there is nothing complicated. Whichever variant of blood sampling is chosen (finger or vein), blood is surrendered only in the morning and on an empty stomach.

Preparing for the upcoming study

Before giving blood, you should not drink alcohol-containing beverages (this applies to beer). Alcohol in the first few hours after entering the body is able to increase blood sugar. Later, the reverse process occurs. The liver, responsible for protein processing in glucose, is forced to cope with the consequences of alcohol intoxication. That is why the level of sugar falls, and the morning blood test is most likely to be erroneous.

Before you donate blood, you can not eat for at least eight hours. You can just drink plain water. How to donate blood to sugar and how to prepare for the analysis, you now know. It's time to get acquainted with the decoding of the data.

Sugar on an empty stomach: norm

The morning glucose level should not exceed the limits of 3.50 ... 5.50 mmol / liter. Throughout the day, indicators may fluctuate, but generally remain within this range.

The increase in figures to 5.50 ... 6.00 mmol / liter is interpreted as a predæbetic state. In this situation, additional research will be required. If the performed clinical analysis of blood on an empty stomach showed that the concentration of sugar was above 6,00 mmol / l, then diabetes is practically confirmed.

Additional tests for blood sugar

To clarify the diagnosis, the following tests can be prescribed:

• Carrying out a test for tolerance of the organism to glucose;
• Test for glycemic hemoglobin.

Glucose Tolerance Test

If the sugar on an empty stomach (the rate you already know) was between 5.70 ... 6.90 mmol / liter, then an additional study is assigned.

Before the test, a person is prescribed a diet containing at least 125 g of carbohydrates. The study is also performed on an empty stomach.

The testing itself looks like this:

• In the beginning the blood is taken from the finger;
• Next, you need to take an aqueous solution of glucose (in 200 ml of water, dissolve 75 g);
• After that, blood sampling takes place every half hour.

Diabetes mellitus is confirmed if the morning analysis showed a sugar level of 7.00 mmol / liter and more, and after two hours after taking the glucose solution, the blood sugar concentration exceeded 11.00 mmol / liter.

If the first analysis showed that the sugar content is slightly less than 7.00 mmol / liter, and after two hours after taking the sweet solution, it was within the range of 8.00 ... .11.00 mmol / liter, this is diagnosed as a violation of tolerance To glucose. And you can talk about the hidden form of diabetes.

Determination of the level of glycemic hemoglobin

This blood test helps to calculate the level of daily average blood glucose for the last 1-3 months. Blood is taken from a person's vein.

The norm is considered to be up to 6%. Figures 6.0 ... 6.5% indicate an increased risk of diabetes. And at rates above 6,5% confirm the diagnosis, but not always diabetes is the reason of deviations.

Additional causes of increased blood sugar

Sugar can be increased not only in diabetes mellitus. Hyperglycemia can talk about the presence of the following diseases:

• Pheochromocytoma, a serious disease of the endocrine system, when a high amount of norepinephrine and adrenaline enters the human blood. Additional signs include jumps in blood pressure, an inexplicable sense of anxiety, a frequent pulse and increased sweating.
• Pathological conditions of the endocrine system. Here we are talking about Cushing's syndrome and thyrotoxicosis.
• Hepatitis and cirrhosis of the liver are also accompanied by a high sugar level in the blood.
• Any form of pancreatitis and pancreatic tumors.

Another reason for hyperglycemia may be the use of certain medications, in particular, diuretics, oral contraceptives and anti-inflammatory steroid drugs.

Sometimes the measurement of blood sugar indicates its too low level. This condition is called hypoglycemia and is accompanied by the following symptoms:

• Pallor of the skin;
• Increased sweating;
• A strong sense of hunger;
• Unexplained anxiety;
• Acceleration of the heart;
• Lethargy.

Controlling the amount of sugar in the blood is necessary for everyone, even if there are no abnormalities in the general state of health. How to donate blood to sugar, what are the methods and generally accepted norms, you now know. Be healthy!