Is it possible to do Diaskintest for a cold or immediately after an acute respiratory infection?

Is it possible to do Diaskintest with a runny nose?

A runny nose is a common disease that most often plagues people in the autumn-spring period, and some “lucky” people suffer from inflammation of the nasal mucosa in the warm season.

The main causes of a runny nose:

Acute respiratory viral diseases. Inflammation begins due to the activity of viruses and bacteria. It is often accompanied by other unpleasant symptoms: cough, fever, headache, weakness.
Allergy. Sometimes allergic rhinitis does not cause serious inconvenience, but more often it is severe, accompanied by coughing and swelling. It depends on the strength of the body's reaction.
Increased sensitivity of the mucous membrane. In this case, a short runny nose occurs, caused by external irritants: strong, unpleasant odors, temperature fluctuations, dust, dry air.
Chronic rhinitis caused by congenital or acquired diseases.

Not all of these reasons become a contraindication to diaskintest. In case of a cold caused by an infection, it is recommended to postpone this test, but increased sensitivity is not a limitation for it. A runny nose sometimes becomes a side effect of the test itself: this is how the body reacts to the drug injected into the blood.

Parents often ask whether Diaskintest can be done for a runny nose, especially for a child. However, tuberculosis not diagnosed in time will cause much more harm to health, so it is worth getting tested even with a mild form of rhinitis, unless a doctor prohibits it.

Is it possible to do Diaskintest for a sick child?

Before the test, both adults and children undergo a medical examination. A health check is necessary, since it is impossible to do a diaskintest if you are ill, especially with damage to the respiratory tract.

Restrictions are necessary due to the nature of the test. During the procedure, instead of a pathogen, genetically modified proteins are introduced into the blood, causing a reaction only if the tuberculosis bacillus is present in it. In an organism affected by pathogens, the immune system is activated to fight pathogens, which distorts the test results.

Vaccination against the background of the disease causes the following side effects:

allergy;
increased symptoms of the disease;
decreased immunity;
heat;
compaction at the injection site.

There is no point in doing a test during illness, but the doctor may suggest performing the procedure if there is a slight runny nose unaccompanied by other symptoms. In this case, the choice of whether to give the baby a test or to postpone the procedure remains with the parents. However, no specialist will insist on conducting a test in the midst of an epidemic.

Is it possible to do Diaskintest if you have a cold?

Testing for tuberculosis when you have a cold is not recommended. The presence of infection in the body is likely to distort its effect. Colds often cause a false-positive result, and further tests do not detect tuberculosis.

A cold can easily develop into or be the first symptom of any serious respiratory disease. Complications that can harm all body functions are also possible.

The following side effects occur as a consequence of getting vaccinated during a cold:

Increased symptoms.
Headache.
Nausea.
Dizziness.

A cold, no matter how mild it may seem, is an absolute contraindication for Diaskintest. Vaccination should be postponed until complete recovery.

Is it possible to do Diaskintest for coughing?

The cough itself is only a symptom. It occurs for various reasons, which include:

cold;
acute respiratory diseases;
stress;
osteochondrosis;
cardiovascular diseases;
increased stomach acidity;
smoking.

All this is related to health problems, but only in case of cough caused by a cold or infectious diseases, the discintest is contraindicated.

In some cases, "smoker's cough" may be a sign of chronic bronchitis. An examination is necessary to find out for sure.

Before getting vaccinated, you need to determine the cause of your cough, then the doctor will be able to tell you for sure whether you can undergo the test. The cough that appears after Diaskintest is most likely an allergic reaction.

Is it possible to do the Diaskin test at a temperature

If elevated temperature is a symptom of an infectious disease, diaskintest cannot be performed.

In the case when the temperature is not accompanied by other signs of a cold, the reasons are as follows:

stress;
increase in external temperature;
physical activity;
any injury (cut, foreign body, frostbite, burn);
spoiled food;
allergy;
drinking alcohol or hot drinks.

There are no visible contraindications for vaccination. However, it is advisable to postpone the test at a temperature, since it itself sometimes provokes an increase in temperature against the background of an allergic reaction.

In women, fever sometimes occurs during menstruation. In this case, it is recommended to postpone the Diaskintest until completion in order to avoid a false positive reaction.

Is it possible to do Diaskintest for allergy sufferers?

Diaskintest is carried out for chronic allergies. Bronchial asthma, dermatitis, allergic rhinitis and food intolerance are not an absolute contraindication.

However, the test can cause an allergic reaction, like any medication:

Redness at the injection site, spreading redness to the entire forearm.
Purulent formations.
Skin rash, itching.
Labored breathing.
Runny nose, cough.

If a severe allergic reaction occurs, you should immediately consult a doctor. The sample results will not be evaluated. If you know you have an allergy, tell us before the test, even if the allergy test is negative.

To avoid side effects, allergy sufferers should prepare in advance for vaccination: a week before the test and for several days after it, have as little contact with pathogens as possible, and take antihistamines.

Evaluation of test results with Diaskintest

The result of the test is assessed by a doctor or trained nurse 72 hours after it was performed by measuring the transverse (relative to the axis of the forearm) size of the hyperemia (redness) and infiltrate (papules) in millimeters with a transparent ruler.

Hyperemia is taken into account only in the absence of infiltration.

The response to the test is considered:

doubtful - in the presence of hyperemia without infiltration;
positive - in the presence of infiltrate (papules) of any size.

Positive reactions conditionally vary in severity:

mild reaction - in the presence of infiltrate up to 5 mm in size;
moderate reaction - with an infiltrate size of 5-9 mm;
pronounced reaction - with an infiltrate size of 10-14 mm;
hyperergic reaction - with an infiltrate size of 15 mm or more, with vesicular-necrotic changes and (or) lymphangitis, lymphadenitis, regardless of the size of the infiltrate.

Persons with questionable and positive reactions are examined for tuberculosis.

There is usually no reaction to Diaskintest:

in persons not infected with Mycobacterium tuberculosis;
in persons previously infected with Mycobacterium tuberculosis with inactive tuberculosis infection;
in patients with tuberculosis during the period of completion of the involution of tuberculous changes in the absence of clinical, X-ray tomographic, instrumental and laboratory signs of process activity;
in persons cured of tuberculosis;
in persons with extrapulmonary localization of tuberculosis.

At the same time, a test with the drug "Diaskintest" may be negative in patients with tuberculosis with severe immunopathological disorders caused by a severe course of the tuberculosis process, in persons in the early stages of infection with Mycobacterium tuberculosis, in the early stages of the tuberculosis process, in persons with concomitant diseases accompanied by an immunodeficiency state.

Is it possible to do Diaskintest immediately after an illness?

A decrease in symptoms and an improvement in well-being does not indicate a final victory over the disease. The infection, although suppressed, may still be present in the body. Most often this concerns colds: the medications taken for them are mostly intended only for a general improvement in well-being.

For those wishing to carry out a diaskintest after an acute respiratory viral infection or other illness, the time when it can be done without fear of getting a false result cannot be specified precisely.

First you will have to undergo a medical examination and pass the following tests:

blood;
feces;
urine;
mucus from the nose.

If the test does not reveal the presence of infection, a test for tuberculosis can be done a month after recovery to allow the body to fully recover.

Additional tests are also necessary to detect hidden infection or microbial carriage. In both cases, the pathogen is present in the body, or causes an asymptomatic course of the disease, or is in a state of equilibrium with the host without stimulating its immune system.

When can you do Diaskintest?

Due to the small number of side effects and the low probability of their occurrence, Diaskintest is almost safe for health. It is recommended for elderly people, pregnant and lactating women. Even a one-year-old child can be tested for tuberculosis safely using this method. The sample does not contain the causative agent of the disease, but antigens present in strains of the tuberculosis bacillus.

Diaskintest checks the body for the presence of tuberculosis bacteria, which can cause this disease in the future. This differs from the Mantoux test, which can also react to traces of Koch’s bacillus in the blood, even if there are no microorganisms themselves in it.

The test is allowed if the patient does not have infectious diseases or other serious pathologies.

He is appointed:

People at risk. It is determined by environmental, social, medical and epidemiological factors.
People living in places where tuberculosis is widely detected.
For children under 17 years of age, as an annual scheduled check.

Diaskintest is allowed to be carried out a month after another vaccination. In case of a negative result, a repeat test is prescribed no earlier than two months after the first test.

Many people wonder whether it is necessary to follow a certain diet after vaccination, giving up sweet, fatty foods, and alcohol. Doctors recommend that people with allergies avoid eating foods that cause an allergic reaction. However, there are no restrictions for healthy people. Drinking alcohol also does not affect the results of the Diaskintest, but increases the risk of side effects such as pressure surges, headaches, hardening at the injection site, or even fever.

Contraindications

Only a doctor can decide whether Diaskintest is suitable for testing for tuberculosis.

The Diaskintest test is not recommended and is not performed on children under 7 years of age inclusive.

"Diaskintest" is contraindicated for persons with allergic and autoimmune diseases! Also, the use of Diaskintest is contraindicated in the following cases:

Skin diseases.
Epilepsy.
In children's groups where there is a quarantine for childhood infections, the test is carried out only after the quarantine is lifted.

In what cases is it better to postpone Diaskintest?

Diaskintest is more sensitive than the Mantoux test, but it is seriously influenced by the individual characteristics of the patient’s body, his state of health and external factors.

In what cases is it better to refrain from vaccination:

For infectious diseases, colds, rhinitis. The presence of pathogenic organisms in the blood provokes a false-positive or false-negative result, so doctors recommend postponing the diaskin test until complete recovery and require additional tests.
During pregnancy. Cases of individual intolerance to the components of the drug are rare, but possible, so it is better not to do the test while you are expecting a child if you are not at risk.
Allergy. Diaskintest is not contraindicated for allergy sufferers, however, without prior preparation, its completion will cause complications: a severe allergic reaction, acute bronchitis, tracheitis. It is advisable to refrain from vaccination during the period of active pathogens.
Quarantine period. If there is a high probability of contracting an infectious disease, doctors themselves recommend postponing the procedure, as it will most likely give a false result.

If the doctor insists on taking the test, despite contraindications, make sure that information about the current state of health is fully included in the medical record.

Mantoux test

The Mantoux test is an intradermal injection of tuberculin to detect tuberculosis. Despite popular belief, this is not a vaccination, but a test for the presence of specific antibodies to mycobacterium tuberculosis. This is an important method because it allows you to detect tuberculosis in the early stages. Its administration is standard: 0.1 ml of tuberculin is injected into the middle third of the area of the inner surface of the forearm. The result is assessed after 72 hours.

The mechanism of the test is as follows: it causes a local allergic reaction of a delayed type. Accompanied by swelling, redness, and sometimes itching. If such a reaction occurs, it means that immunity to tuberculosis has formed, and the body already knows how to recognize these bacteria. If there is no reaction, then there is no immunity to Mycobacterium tuberculosis.

There are contraindications for performing the Mantoux test: epilepsy, rheumatism, tumors, a confirmed allergic reaction to tuberculin, as well as exacerbation of allergies, chronic infections, quarantine at school and kindergarten. Due to possible allergic reactions, some parents are afraid to do the Mantoux test.

Who makes the decision to conduct the test?

The decision whether to perform a Diaskin test or not is made jointly by the doctor and the patient. When the test is given to a child, the pediatrician makes the decision about the need for vaccination, but the final word remains with the parents.

After performing Diaskintest, there is a possibility of side effects:

loss of appetite;
weakness;
slight headache.

In a normal situation, these symptoms disappear after two to three days, but if this does not happen, or the child’s condition worsens, you should immediately consult a doctor.

If you refuse Diaskintest due to temporary or absolute contraindications, you will have to be tested for tuberculosis in the form of fluorography or x-ray.