Rules for preparing a patient for diagnostic studies – a medical treatment room in Saratov at the TANMED clinic – a full list of services, affordable prices. Call and sign up!

Rules for preparing a patient for diagnostic studies

For the most accurate diagnosis of diseases, the most modern laboratory equipment is not enough. The accuracy of the results depends not only on the reagents and apparatus used, but also on the time and correctness of the collection of the test material. If the basic rules for preparing for analyzes are not observed, their results can be significantly distorted.

Blood test

Morning hours are the most suitable for blood tests. For most studies, blood is taken strictly on an empty stomach. Coffee, tea and juice are also food. You can drink water.

The following intervals after the last meal are recommended:

for a general blood test at least hours;
for a biochemical blood test, it is advisable not to eat for 12-14 hours (but not less than 8 hours).

2 days before the examination, it is necessary to give up alcohol, fatty and fried foods. Do not smoke 1-2 hours before blood sampling.

Before a blood test, physical activity should be minimized as much as possible. Avoid running, climbing stairs. Avoid emotional arousal. 10-15 minutes you need to rest, relax and calm down.

You can not donate blood immediately after physiotherapy procedures, ultrasound and x-ray examinations, massage and reflexology.

Before donating blood, you need to exclude temperature extremes, that is, a bath and a sauna.

Before a hormonal blood test in women of reproductive age, one should follow the recommendations of the attending physician about the day of the menstrual cycle on which it is necessary to donate blood, since the physiological factors of the phase of the menstrual cycle affect the result of the analysis.

Before donating blood, you need to calm down in order to avoid an unmotivated release of hormones into the blood and an increase in their rate.

To donate blood for viral hepatitis, it is advisable to exclude citrus fruits, orange fruits and vegetables from the diet 2 days before the study.

To correctly evaluate and compare the results of your laboratory tests, it is recommended that they be carried out in the same laboratory, since different laboratories may use different methods of analysis and measurement units.

Analysis of urine

General clinical analysis of urine:

only morning urine, taken in the middle of urination, is collected;
morning portion of urine: collection is made immediately after getting out of bed, before taking morning coffee or tea;
previous urination was no later than 2 am;
before collecting a urine test, a thorough toilet of the external genitalia is performed;
In a special container with a lid, 10 ml of urine is collected, equipped with a direction, assembled urine immediately sent to the laboratory;
Storage of urine in the refrigerator is allowed at T 2-4 C, but not more than 1.5 hours;
Women can not donate urine during menstruation.

Daily urine collection:

The patient collects urine for 24 hours with ordinary drinking mode (about 1.5 liters per day);
In the morning of 6-8 hours, it frees the bladder and pours this portion, then during the day collects all the urine into a clean wide-round vessel from dark glass with a capacity of at least 2 liters;
The last portion is taken at the same time when the on the eve was started, the start and end time is noted;
Capacity is stored in a cool place (better in the refrigerator on the bottom shelf), freezing is not allowed;
At the end of the collection of urine, its volume is measured, urine carefully shake and differ 50-100 ml into a special container in which it will be delivered to the laboratory;

Collection of urine for research on Nechiporenko (identification of a hidden inflammatory process)

– In the morning, the empty stomach is collected by 10 ml of morning urine, taken in the middle of urination into a special laboratory container.

Analysis of Cala

One day before the study, avoid receiving drugs, changing the nature of the feces and causing functional disorders of the tract;
It is impossible to explore the feces after the enema, the use of rectal candles, reception of laxatives or coloring substances, as well as pylocarpine, gland preparations, bismuth, barium, etc.;
Cal should not contain foreign impurities, such as urine, disinfectants, etc.;
Prepare a clean cutter for the feces;
The contents of the morning feces from the points are assembled into the container and delivered to the laboratory within hours.

Analysis of feces on the detection of melted invasions.

Within two days, the patient should not eat hard, poorly digestible food ("food garbage") – seeds, nuts, raw vegetables and fruits with a sandpaper, as well as sorbents – activated carbon and other, as well as mushrooms!

Analyzes in gynecology, urology

For women:

It is impossible to urinate within hours before surrendering the analysis (smear, sowing);
It is not recommended to enter into sexual contact for 36 hours, especially with the use of contraceptives that can distort the result, since they have an antibacterial effect;
On the eve, it is impossible to arrange an antibacterial soap and drain;
It is impossible to use antibiotics inside;
It is impossible to take tests during menstruation.

For men:

It is impossible to go to the toilet 3 hours before the examination;
It is impossible to take inside of stereft, antibiotics;
apply externally solutions with a disinfecting effect, an antibacterial effect soap;
It is not recommended to enter the sexual contact 36 hours before the tests.

Ultrasound research

Preparation for abdominal ultrasound

2-3 days before the examination, it is recommended to switch to a slicing diet, eliminate from diet products that enhances gas formation in the intestines (raw vegetables rich in vegetable fiber, whole milk, black bread, legumes, carbonated drinks, and high-calorie pastry – cakes, cakes );
Patients having problems with the gastrointestinal tract (constipation) are advisable during this period of time to take enzyme preparations and enterosorbents (for example, festal, activated carbon or espeamizan 1 tablet 3 times a day), which will help reduce the manifestations of meteorism;
Ultrasound of the abdominal organs need to be done on an empty stomach if the study cannot be carried out in the morning, a light breakfast is allowed;
If you take medicines, warn your ultrasound doctor about it;
It is impossible to conduct a study after gastro and colonoscopy, as well as after X-ray studies of the gastrointestinal bodies.

Preparation for ultrasound of a small pelvic organs (bladder, uterus, appendages in women)

The study is carried out with a complete urinary bubble, so it is necessary not to urinate to the study for 3-4 hours and drink 1 l of non-carbonated fluid 1 hour before the procedure.

For transvaginal ultrasound (TVS), special preparation is not required.

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