Infection self-test

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What does the infection self-test do?

The self-test detects the C-reactive protein levels in the blood. Increased levels can be found among others after a heart attack, during an infection and after a surgical procedure. C-reactive protein (CRP) is a nonspecific marker mainly produced by the liver for the diagnosis of bacterial infectious diseases and amoral diseases. The CRP is a very sensitive and fast-acting indicator that can help determine if antibiotic treatment is needed.


For whom is the infection self-test suitable?

For anyone who believes they are infected or ill.


How does the infection test work?

If present in the sample, CRP will interact with both the anti-CRP antibodies and the CRP antigen that is introduced into the assay, producing various lines that will provide a semiquantitative measure of CRP concentration in the blood sample.


Why should I do the infection self-test?

In healthy patients, the CRP concentration is below 8 mg / L, while in the case of a severe infection or during an ammatory process the concentration may exceed 100 mg / L. Intermediate concentrations between 8 and 100 mg / L correspond to more or less mild viral or bacterial infections, which can easily be cured by appropriate treatment on the recommendation of your doctor.


Contents of the set:

  • 1 sealed aluminum bag,
  • 1 plastic pipette,
  • 1 C-reactive test cassette,
  • 2 sterile lancets,
  • 1 disinfection pad
  • 1 bottle of CRP diluent,
  • 1 manual

CRP value (C-reactive protein)

The C-reactive protein, abbreviated as CRP, indicates inflammation in the body. The blood count may already be elevated if there are no other symptoms such as fever or increased white blood cell count.


Blood collection

The CRP value, like blood sedimentation, can indicate inflammation in the body.

C-reactive protein belongs to about 30 “acute phase proteins”. These proteins are produced in inflammatory diseases at a very early stage in the liver and released into the blood. Their concentration can be up to two thousand times higher in case of illness. With the self-test, you can see if you have elevated CRP levels.


The C-reactive protein is an important marker of inflammation

As part of the immune system, the proteins ensure that the site of inflammation is localised, immune cells in the blood activated, and pathogens controlled. The CRP therefore “marks” foreign body cells or destroyed body tissue for the phagocytes of the immune system.

CRP increases the most in bacterial infections but only moderately in viral infections. The value changes very early, if no disease symptoms are present. If the immune system has successfully combated the infection in the body or medications were used for healing, the CRP quickly returns to normal levels.

The CRP value may also provide information about the nature of the disease, its severity, and its course. With the CRP value, it can be estimated whether it is a chronic or acute inflammation, since in acute cases, the CRP in the blood is many times higher than in a chronic course or in a recurrent inflammation.

The CRP value can be used to estimate the success of therapy, for example with antibiotics. After major surgery, general practitioners can follow the healing process by looking at CRP levels and detecting and treating complications such as severe infections at an early stage.


Normal value for CRP

C-reactive protein is also found in the blood of healthy people. The content should normally be less than 10 milligrams per liter (mg / l), while it may be slightly higher in the elderly.


Causes of elevated CRP levels

Slightly elevated CRP values between 10 and 50 mg / l are found in mild and localised inflammation. Reduced levels are also measured in the blood of pregnant women and smokers.


Excessive drinking, stress, physical activity, endurance sports, or taking certain medications (such as contraceptives) may increase the CRP slightly.

Elevated CRP values ​​between 50 and 100 mg / l in the blood are an indication of acute inflammation, for example respiratory infections, urinary tract infections or appendicitis.

Even after surgery, when tumors are present and after a heart attack, the CRP value is significantly increased.

CRP values ​​above 100 mg / l are measured at

  • severe bacterial infections, ulcers, festering abscesses
  • Blood poisoning (sepsis),
  • Longitis,
  • Menitis (meningitis),
  • inflammation of the pancreas (pancreatitis) or
  • chronic inflammation such as rheumatism or Crohn’s disease in the active phase


After severe burns, the CRP value rises to over 200 mg / l. In children, CRP may already be significantly elevated in simple infections. After organ transplantation, high CRP shows an incipient rejection reaction.

Chronic elevated CRP is also considered a marker of arteriosclerosis and is a risk factor for heart attacks and other cardiovascular diseases.

Too low CRP values ​​have no medical significance. The Infection self-test lets you see if you have elevated or normal CRP levels.

Good to know: CRP is a nonspecific parameter. An elevated value merely indicates an inflammation or infection, but not which organ or bacteria is infected. Therefore, additional blood counts with elevated CRP should be determined and studies performed to identify the trigger of the increase and to localise the inflammation.


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