Important information on research preparation.

Dynamic nephroscintigraphy (kidney function examination). Preparation: eat, drink 2 glasses of liquid before the examination (30-40 minutes). Duration of the examination on average 30-40 minutes.

Static kidney scintigraphy.

Preparation: not required. Have a sheet with you. Duration of the examination on average 1.5-2 hours.

Osteoscintigraphy (bone examination).

Preparation: not required. Have a sheet with you. Duration of the examination: 3-4 hours.

Thyroid scintigraphy.

Preparation: 2 weeks before the examination cancel the drugs containing iodine, thyroid hormones, thyroid drugs. Have a sheet with you. The examination takes 40 minutes. - 1 hour.

Scintigraphy of the parathyroid glands.

Preparation: 2 weeks before the examination cancel the drugs containing iodine, thyroid hormones, thyrostatic drugs. Have a sheet with you. Duration of the examination is about 2 hours on average.

Scintigraphy of the heart (rest, stress (with dipyridomol)). Preparation: Beta-blockers, nitrates, Ca antagonists, tea and coffee are canceled within 24 hours before the examination. Conducted on an empty stomach. Duration 2 days.

Blood tests for all tests must be taken:

In the morning, on an empty stomach, preferably after a 12-hour fast.

For 1-2 days refuse from spicy, fatty food and alcohol, for 1h - refrain from smoking, for 30 minutes exclude physical activity.

It is necessary to give blood before taking medicines (for example, antibacterial and chemotherapeutic) or not earlier than in 10 - 14 days after their cancellation. The exception is when you want to examine the concentration of drugs in the blood (e.g. valproic acid, anticonvulsants). When taking medicines, be sure to tell your health care provider about this when you are discharging your prescription for a trial.

Blood should not be taken after radiography, physiotherapy and diagnostic procedures.

Blood for insulin should be given before insulin medication is given. You should also avoid any stress.

When giving blood for thyroid hormone tests, remember that:

A few days before the study, it is excluded to take drugs containing iodine and iodine-containing products (fish, seafood, seaweed, iodized salt),

Before the study, it is necessary to exclude physical activity and avoid stress,

Blood collection should be carried out prior to X-ray contrast examinations,

It is recommended to take the blood for examination at the same time of day during the research in the dynamics,

TTG (thyroid hormone) is tested until 10 a.m. as its blood content is subject to daily fluctuations,

It is advisable to conduct repeated studies of the level of TTH no sooner than 6 weeks after the change in dose or type of drug.

Sexual hormone testing in women is performed strictly taking into account the menstrual cycle, so it is necessary to specify the phase of the cycle when donating blood:

Estradiol, follicle stimulating hormone, luteinizing hormone, free testosterone are examined on the 6-7th day of the menstrual cycle, unless otherwise specified by the attending physician. On the eve of the study it is necessary to exclude physical activity (sports training) and smoking.

Progesterone analysis - performed on the 22-23 day of the menstrual cycle, unless otherwise specified by the attending physician.

Blood for oncological markers can be given after 4 hours of fasting (low-fat meal). Remember that:

The CA15-3 test is done before or no sooner than 2 weeks after biopsy, surgery and breast massage.

PSA tests should be performed before or no sooner than 6-7 days after prostate biopsy, massage or finger rectal examination of the prostate, transrectal ultrasound, laser therapy, ergometry, cysto-colonoscopy and any other mechanical effects on the prostate. An increase in the level of PSA after biopsy and other manipulations on the prostate can be observed up to 1 month. In order to avoid errors, it is advisable to determine the free and total PSA in one laboratory by one method.

It is advisable to exclude citrus, orange fruits and vegetables from the diet 2 days before donating blood for viral hepatitis.

Blood tests for the presence of IgM antibodies to infectious agents should be conducted not earlier than 5-7 days after the disease, and antibodies of IgG, IgA classes not earlier than 10-14 days.

The results of studies for the presence of infections depend on the period of infection and the state of the immune system, so a negative result does not completely exclude infection.

Urine analysis.

To collect urine, it is better to use a special container, which is purchased at the pharmacy. This will avoid mistakes related to the cleanliness of the dishes.

On the eve of the test it is recommended not to eat vegetables and fruits that can change the color of urine (beetroot, carrot, etc.), do not take diuretics. Refrain from physical activity, from taking alcohol. You should not have sex less than 12 hours before the start of the test.

Before urine collection, a thorough genital hygiene toilet should be provided. Women are not recommended to take a urine test during menstruation.

For the study, the entire morning portion of urine is collected, and the first few milliliters of urine should be drained past, and the rest of the container, which should be perfectly clean and dry. For the study, pour into a container 50-100 ml of urine.

It is advisable to deliver the sample within 1 hour to the laboratory. Prolonged storage of urine leads to changes in the physical properties of urine, bacterial growth and the destruction of sedimentary elements.

Secretion of oropharynx and nose - on an empty stomach in the morning (without brushing teeth) or 3 hours after a meal.

Sputum - sputum, a morning portion, collected in a sterile container, brushed teeth before and rinsed mouth with boiled water.

Fecal dysbacteriosis examination: 1-3 days before taking the sample, the patient should be on a diet that excludes the intake of foods that enhance the fermentation process in the intestine, as well as alcohol, antimicrobial drugs, etc.

Fecal is collected immediately after defecation, eliminating the possibility of contamination by placing a portion of the faeces in a sterile container. The amount of faeces to be tested for intestinal dysbacteriosis should be 1/3 of a 20 ml (tablespoon). If there are pathological impurities (slime, flakes, pus) in the excreta, they should be included in the sample.

The material is delivered to the laboratory as soon as possible (no more than 2 hours from the moment of collection).

Secretion of the genitourinary organs is collected by the gynecologist or urologist of the Center.

Urine - a morning average portion of urine in sterile container (after a careful toilet of external genitalia - washing twice with soap).

Secretion of eyes, ears - the material is collected by an ophthalmologist and an otolaryngologist of the center.

Abdominal ultrasound preparation

In case to prevent intestinal meteorism (bloating) 3 days before the examination exclude from the diet gas-forming products: legumes, black bread, milk products, chocolate, sweets, raw fruits and vegetables.

To reduce gas production is recommended to take enzyme preparations (Mezim, Festal, Pancreatin) 1 tablet 3 times a day. Activated carbon is not used for preparation for ultrasound examination.

It is necessary to exclude laxatives.

Ultrasound is performed on an empty stomach. Therefore, the last meal should be at least 6-8 hours before the start of the examination.

On the day of the procedure, you can not drink alcohol or smoke.

Abdominal ultrasound should not be performed one day after gastroscopy or colonoscopy.

Breast glands

Most often ultrasound diagnostics is carried out from the 5th to 10th day of the menstrual cycle.

Small pelvic organs

Preparing for transabdominal examination: 1-1.5 hours before the examination, you should drink 1 liter of liquid without gas or not urinate for more than 1.5 hours.

In a transvaginal examination, the bladder should be empty.

Prostate gland

Transabdominal - the study is conducted for a full bladder. It is necessary to drink up to 1 liter of liquid (non-carbonated, juice, tea) 1 hour before the study or not to pee for more than 1.5 hours

Transcertal (TRUSI) - requires a cleansing enema the night before and morning of the examination.

Contraindications to the transrectal ultrasound:

deep cracks in the rectal anus

the presence of inflamed hemorrhoids

The test is performed on an empty stomach.

To prevent false negatives, do not take them before the test:

Antibiotics (amoxicillin, clarithromycin and others) - 4 weeks.

Proton pump inhibitors (omeprazole, omez, lansoprazole, pantoprazole, nolpaza, pantasane, pantap, controls, rabeprazole, rabbezole, pariet, esomeprazole, emanera, esocar, etc.).e.), H2-receptor antagonists (ranicidine, phamotidine, quamatel), bismuth preparations (De Nol, etc.) -2 weeks.

Anti-inflammatory non-steroidal drugs (chalky, diclofenac, nimesulide, ibuprofen, etc.) - 5 days.

Smoking and chewing gum for 3 hours before the examination.

Esophagogastroduodenoscopy (EGDS)

The examination is conducted on an empty stomach, the last meal should be 8-10 hours before the EGDS.


Two days before the examination - a low-fiber diet (exclude bread, vegetables, fruits, cereals, legumes, nuts, milk products). The last meal, breakfast, is allowed one day before the examination.

On the eve of the examination, after 15.00, You drink Fortrans for 4-5 hours (4 packets, these packets are diluted in 4 liters of water, you can add lemon juice). It is also possible to use "Endofalk" (6 bags, these bags should be diluted in 4 liters of water).

On the day of the examination you can drink water, tea and sugar without milk, unpainted drinks.