C-reactive protein (CRP) norm

In an extended biochemical analysis, you can see C-reactive protein. This fraction of plasma proteins increases in the presence of an inflammatory process in the body. It is synthesized in response to the entry of toxins of pathological microorganisms into the blood and neutralizes them by binding them. In addition, it appears during the destruction of the body's own cells in the case of necrosis, tumor disintegration or extensive trauma, inactivating the products formed in this case. In addition to eliminating toxins, CRP triggers a cascade of immune reactions aimed at eliminating pathologically altered structures.

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C-reactive protein (CRP) norm

Normally absent (or less than 0.4 mg/l). Its appearance indicates the development of pathology, and the quantitative value is proportional to the severity of the condition. It can be used as an indicator of the effectiveness of treatment, since it decreases quite quickly (within a few days) after the improvement of health. Indications for C-reactive protein testing:

  • Infectious manifestations (fever, weakness, sweating, headaches, runny nose, cough, sore throat, skin rashes, diarrhea, urinary disorders)
  • Suspected presence of parasites (jaundice, weight loss, indigestion, intestinal upset, bloody discharge from the anal canal, muscle pain, eosinophilia)
  • Symptoms of pancreatitis (girdle-like pain in the epigastrium, bloating, nausea after eating and subjective improvement during fasting)
  • Pyelonephritis, glomerulonephritis, cystitis (changes in general urine analysis, pain during urination, frequent diuresis)
  • Hepatitis (discomfort in the right hypochondrium, nausea, yellowing of the skin, itching, increased liver enzymes, bilirubin)
  • Nonspecific ulcerative colitis, Crohn's disease (frequent, false urge to defecate, blood in the stool, loose stools)
  • Suspected cancer (weight loss, increased fatigue, decreased appetite, pallor, symptoms of local damage to the relevant organs)
  • Tissue crushing, burns, long-term non-healing ulcers

Sometimes CRP increases more actively than the symptoms. This is especially typical for acute infections (with the proliferation of bacteria) and inflammation. For the purpose of early diagnostics, CRP is prescribed in the postoperative period, after hypothermia, questionable signs of the disease (for example: unclear clinical appendicitis, peritonitis).

This study is used in the comprehensive confirmation of the diagnosis of myocardial infarction, rheumatoid arthritis, lupus, tuberculosis, as well as in the compilation of prognostic factors after recovery. The level of such an indicator can be used to preliminarily determine the nature of the pathology:

  • A content of up to 5 can be considered a relatively normal concentration or indicate a sluggish chronic inflammation
  • A value of up to 20 is typical for viral and systemic diseases
  • With an exacerbation of autoimmune processes, severe cell damage by viruses, with injuries it rises to 40
  • Acute bacterial infections, myocardial infarction are accompanied by a level of 100
  • Higher numbers are noted in severe destructive conditions (pancreatic necrosis, pneumonia and tuberculosis, deep burns, necrosis of malignant neoplasms)

Given the significant diagnostic value and sensitivity to a wide range of diseases, it is necessary to promptly perform biochemistry if your health deteriorates.

Our doctors

Anikina Natalya Yuryevna
Experience 14 years
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Anikina
Natalya Yuryevna
Gastroenterologist
Galimova Saida Faritovna
Experience 21 year
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Galimova
Saida Faritovna
Gastroenterologist, hepatologist
Stanke Daria Alexandrovna
Experience 17 years
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Stanke
Daria Alexandrovna
Leading gastroenterologist, hepatologist, therapist
Yuryeva Anna Evgenievna
Experience 27 years
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Yuryeva
Anna Evgenievna
Gastroenterologist, preventive medicine doctor
Lyashenko Olga Sergeevna
Experience 14 years
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Lyashenko
Olga Sergeevna
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Dvornikova Marina Victorovna
Experience 35 years
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Dvornikova
Marina Victorovna
Gastroenterologist
Komkova Inna Igorevna
Experience 12 years
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Komkova
Inna Igorevna
Gastroenterologist
Rodimova (Efremova) Irina Vyacheslavovna
Experience 8 years
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Rodimova (Efremova)
Irina Vyacheslavovna
Gastroenterologist, hepatologist
Ivanova Marina Nikolaevna
Experience 6 years
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Ivanova
Marina Nikolaevna
Leading gastroenterologist
Kolomytseva Elena Vladimirovna
Experience 18 years
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Kolomytseva
Elena Vladimirovna
Therapist, gastroenterologist, pulmonologist
Guseva Anna Konstantinovna
Experience 6 years
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Guseva
Anna Konstantinovna
Gastroenterologist
Purveeva Kermen Valerievna
Experience 27 years
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Purveeva
Kermen Valerievna
Gastroenterologist
Kazarov Aram Armenovich
Young professional
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Kazarov
Aram Armenovich
Gastroenterologist
Prokasheva Ekaterina Sergeevna
Experience 6 years
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Prokasheva
Ekaterina Sergeevna
Gastroenterologist
Kondrashova Elena Alexandrovna
Experience 20 years
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Kondrashova
Elena Alexandrovna
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Our doctors are laureates of the ProDoctors Award
Our doctors are laureates of the ProDoctors Award

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Reviews 10

I really liked the doctor and his approach to treatment, it’s nice that there are still doctors like him!
16.10.2025
N. Dmitry Vyacheslavovich
She's a very pleasant doctor; my husband and I go to her together. She's always interested in the patient's treatment and explains everything in great detail.
16.10.2025
G. Maria Stanislavovna
Very attentive doctor, thank you.
13.10.2025
M. Lyudmila Olegovna
A very competent, polite, and pleasant doctor! She answered all my questions and gave helpful recommendations!
11.10.2025
M. Tigran Ashotovich
I've known the doctor for over 5 years, as I'm a colleague. We work at K 31 Petrovskie Vorota. We previously worked together at another clinic, Aging Control. I've been meaning to leave a review for a long time, as it's crucial to provide patients with information about the work of certain doctors directly from the doctor's lips. I often work with Elena Vladimirovna in the diagnosis and treatment of interdisciplinary pathologies—rosacea, acne, perioral dermatitis, dermatitis of unknown origin, and various types of pigmentation. A patient who comes to see me, and I'm a dermatologist and cosmetologist, is looking for relief from an ailment, often unaware that the root of the problem may be due to dysfunctions and pathologies of the gastrointestinal tract. A particular challenge is conveying to the patient that skin problems are often the only marker (symptom) of these diseases. The symbiosis in the work of a gastroenterologist and a dermatologist can give A quick solution to the problem, optimized diagnosis and treatment, freeing the patient from a series of stresses and unnecessary examinations, and, finally, curing the disease and achieving remission. Since such pathologies are often chronic, patients who are "treated" and have a variety of "proven" treatments are seen. The nature of the disease allows for a referral to an experienced gastroenterologist, examination, and treatment, and my path to a dermatologist becomes short and clear. Elena Vladimirovna is also my family doctor, and her opinion has long been my expert opinion. I hope my review will help many find their doctor. I can confidently recommend Elena Vladimirovna!
11.10.2025
K. Alina Vasilievna
A very attentive and caring doctor
10.10.2025
P. Elena Ivanovna
The medical service was provided efficiently and in a timely manner. I recommend this doctor.
10.10.2025
G. Irik Azamatovich
The medical service was provided efficiently and in a timely manner. I recommend this doctor.
10.10.2025
G. Irik Azamatovich
Marina Viktorovna is not only an experienced doctor, but also a very tactful and attentive specialist. The best!!!
10.10.2025
T. Anna Vladimirovna
I saw Ekaterina Sergeevna on September 29, 2025, after my stomach pain worsened. She conducted the appointment, prescribed medication, and stayed in touch for a week to check on my health. I'm very grateful for her professionalism and attentiveness; her recommendations were very helpful.
09.10.2025
G. Smbat Zhorzhikovich
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Почему К+31?
К + 31 — full-cycle multidisciplinary medical centers, including the possibility of providing medical services of European quality level.
К + 31 — are leading doctors and diagnostics using high-tech equipment from world manufacturers (Karl Storz, Olympus, Siemens, Toshiba, Bausch&Lomb, Technolas, Zeiss, Topcon).
К + 31 — is ethical. The staff of K+31 clinics maintain open relationships with patients and partners. An individual approach to each patient is the basis of our service standards.
К + 31 — is modernity. On call 24/7: call center operators will answer your questions at any time and book you an appointment with doctors. Contact us by phone, through the feedback form on the website and WhatsApp.

Our clinics

K+31 on Lobachevskogo

st. Lobachevskogo, 42/4

+7 499 999-31-31

Subway
1
11
Prospect Vernadsky Station
By a car
Lobachevsky, we pass the first barrier (security post of the City Clinical Hospital No. 31), turn right at the second barrier (security post K+31)
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Opening hours
Mon-Fri: 08:00 – 21:00
Saturday: 09:00 – 19:00
Sunday: 09:00 – 18:00
K+31 Petrovskie Vorota

1st Kolobovsky pereulok, 4

74999993131

Subway
9
Tsvetnoy Bulvar
10
Trubnaya
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Moving along Petrovsky Boulevard, turn onto st. Petrovka, right after - on the 1st Kolobovsky per. Municipal parking
Opening hours
Mon-Fri: 08:00 – 21:00
Sat-Sun: 09:00 – 19:00
K+31 West

Orshanskaya, 16/2; Ak. Pavlova, 22

74999993131

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3
Molodezhnaya
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Moving along Orshanskaya street, we turn to the barrier with the guard post K+31. You do not need to order a pass, they will open it for you
Opening hours
Mon-Fri: 08:00 – 21:00
Sat-Sun: 09:00 – 18:00
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