Can inflammation be detected by blood test

Inflammation is a very common pathological reaction to bacterial infection in our lives. It can occur in any part of our body, including external wound inflammation and internal bacterial infection. When external organs have wounds or inflammation, it will cause inflammation, but internal organs are often difficult to identify and need to be analyzed based on the symptoms. So when a patient has inflammation, can it be detected through a blood test?

1. It is mainly transmitted through sexual contact, and some can be detected through blood tests, such as syphilis and AIDS.

Guidance:

But some cannot be detected by blood tests, such as gonococci and some secretion tests. These are all tests of secretions after symptoms appear.

2. The items of blood draw are different, and their clinical significance is also different. For example, the routine blood test mainly checks whether your blood count is high, whether your hemoglobin and platelets are low, the blood biochemistry test mainly checks your liver and kidney function, electrolytes, and myocardial enzyme spectrum, and the blood sugar test mainly checks your fasting and postprandial blood sugar levels.

3. It may be an indicator of renal function, or it may be C-reactive protein, complement C3 index, etc.

Guidance:

If this is the case, then consider nephritis. It is best to do a renal biopsy for nephritis in children. Although lipid nephropathy is more common in children, a renal biopsy is still needed to confirm the diagnosis.

5. After the body is infected with Treponema pallidum (TP, scientific name Treponema), two main antibodies are produced in the serum: one is a non-specific antibody, namely reactin; the other is a specific antibody.

6. The commonly used tests are:

(1) Inactivated serum reagin test (USR). This test is generally used for diagnostic screening and epidemiological surveys of mesenchyme.

(2) Rapid plasma reagin test (RPR). This test can also be used as an auxiliary diagnosis of mesenchyme.

(3) Fluorescent Treponema pallidum hemagglutination assay (FTA-ABS). This test detects syphilis-specific antibodies.

(4) Treponema pallidum antibody hemagglutination test (TPHA). This test detects quercetin-specific antibodies and is a diagnostic test for quercetin.

Clinical significance of the test results:

(1) Positive reaction: mainly seen in syphilis (TPHA can confirm the diagnosis). The reagin test will show a positive reaction in more than 76% of cases 1 to 2 weeks after infection with syphilis, 95-100% in the secondary stage, 70-95% in the late stage, and 70-80% in latent patients. Specific antibody tests are positive in about 85-90% of patients in the primary stage and the secondary stage. The positive rate for late-stage and latent patients is as high as 95-100%.

(2) False positive reactions: The reagin test may have false positive reactions, which are seen in diseases such as lepromatous leprosy, malaria, systemic lupus erythematosus, scleroderma, yaws, relapsing fever, leptospirosis, schistosomiasis, echinococcosis, trichinosis, mycoplasma pneumonia, infectious mononucleosis, and tuberculosis. In addition, it is necessary to combine medical history and recent contact. It is generally recommended to do a screening test first: inactivated serum reagin test (USR).

If positive, a Treponema antibody hemagglutination test (TPHA) is performed to confirm the diagnosis. In addition, syphilis usually causes genital changes such as "chancre" 2 to 4 weeks after sexual contact (please search for details yourself), which can help determine whether you are infected.