Why should a healthy person take tests
Most of us, finding ourselves with a doctor with some kind of ailment, are annoyed when he, instead of prescribing pills right away, forces us to take tests and do all kinds of tests. And this is a waste of extra time, money and effort, and if you remember the queues in clinics, then nerves. In fact, why are we doing so many tests?
Elena Kuzina, a general practitioner, agreed to answer several popular reading questions.
Are there universal laboratory research methods that can detect any disease?
Each study is carried out with a specific purpose and has its own advantages and disadvantages. So, for example, x-rays and ultrasounds are able to identify anatomical pathology in humans (in the bone system, internal organs). But at the same time, functional disorders remain “behind the scenes”.
A biochemical blood test gives an idea of the work of the liver, kidneys, endocrine glands, metabolic state, but is silent about infections. To identify them, serological blood tests or methods for detecting pathogens in tissues are needed.
The condition of the intestinal microflora can be judged only by making a special analysis for dysbiosis.
Non-traditional research methods claiming universality (iridodiagnosis, Voll method, etc.) give, as a rule, too generalized results, which still require laboratory specification.
Is it true that a more expensive examination will be more effective?
Not. The price of analyzes depends on a lot: on the cost of equipment, the used test systems, the time and effort of personnel, the contractual relationship of the clinic with the laboratory, etc. If some kind of analysis is done, say, in only one laboratory in the city, can its price be unreasonably high?
Why can’t an experienced doctor make a diagnosis based on examining a patient without chasing him with jars and cones?
Of course, a competent specialist in some cases can save you from unjustified expenses of time and money for additional examinations. But even with a disease that is obvious at first glance, it is necessary to pass some mandatory tests.
The doctor needs to have more information about your body in order to make the correct diagnosis, not to miss the concomitant disease, to prescribe the right treatment. The fact is that many diseases are very similar in their symptoms, but require completely different treatments.
The cause of abdominal pain, for example, may be bacteria, protozoa, worms, or diseases of the gastrointestinal tract. To understand the doctor and prescribes additional studies: ultrasound, gastroscopy, microbiological examination.
Why undergo “on-duty” examinations, say, when applying for a job or medical examination, if you feel completely healthy?
Some diseases (endocrine, oncological, urinary tract infections) may not manifest themselves for a long time. Their initial manifestations are too vague: a person quickly gets tired, feels weak, sleeps poorly. Such things are usually attributed to stress and vitamin deficiency.
If you feel healthy, then you do not need to undergo expensive research. It is enough to periodically take simple tests: total blood and urine tests, women visit a gynecologist once a year. Then most of the beginning sores can be detected at an early stage and get rid of them quickly.
If a special analysis has not found any disease, does this mean that it really is not?
It happens that when certain infections are detected, pathogens or antibodies to them are not detected in the blood. This can happen if the test was taken during the incubation (latent) period of the disease, or the patient took some antibiotic before coming to the doctor and “wiped” the symptoms of the disease for a while.
For example, antibodies to rubella virus appear in the blood only 2 weeks after infection. In order to detect worms, you need to “catch” the moment when they begin to lay their eggs. If the analysis does not confirm the disease, and the symptoms persist, the doctor may send you for a second examination.
If it also turns out to be inconclusive, then a specialist will treat you, focusing only on your complaints and symptoms.
Is it true that modern research methods make it possible to accurately diagnose?
Unfortunately, as in any field of medicine, it is impossible to give a one hundred percent guarantee. Even the most accurate study can fail due to the individual reaction of the body. In addition, when conducting, for example, X-ray studies, the qualification of a diagnostic doctor who can correctly interpret the data obtained is very important.
The reliability of even the best diagnostic procedures is 95% at best. Therefore, the main task of the doctor remains the correct decoding of all results in aggregate.