How to donate blood for sugar? Preparation for delivery of 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 will talk about how to donate blood for sugar.

When can this analysis be assigned?

The doctor gives an appointment to conduct such an analysis if there is a suspicion of developing diabetes, since it is specifically for this disease that the growth of blood glucose level is characteristic.

The study is mandatory if:

  • has complaints of persistent thirst, accompanied by severe dry mouth;
  • there is a sharp weight loss;
  • is worse with urination;
  • there is rapid fatigue.

The analysis is mandatory and is prescribed for people with excess weight, as well as hypertension.

Taking the analysis of

If we talk about how to donate blood to 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 Do not consume alcoholic beverages before you donate blood( this also applies to beer).Alcohol in the first few hours after ingestion can 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.

You must also eat for at least eight hours before you donate blood. 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.

Fasting sugar:

norm 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 predetermined state. In this situation, additional research will be required. If, however, the clinical analysis of fasting blood showed that the sugar concentration was higher than 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 norm 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.

Testing itself is as follows:

  • at the beginning of a blood sampling from the finger;
  • further need to take an aqueous solution of glucose( in 200 ml of water is dissolved 75 g);
  • after that the blood sample is taken every half hour.

Diabetes mellitus is confirmed if the morning analysis showed a sugar level of 7.00 mmol / liter or 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 violationtolerance to glucose. And we can talk about the latent 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. The blood is taken from the vein of a person.

The norm is considered to be up to 6%.Figures 6.0. .. 6.5% indicate an increased risk of developing diabetes. And with indicators over 6.5% confirm the diagnosis, but not always it is diabetes that causes 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 rapid 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;
  • is an unexplained anxiety;
  • heart rate acceleration;
  • listlessness.

It is necessary to control the amount of sugar in the blood, 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!