2011 Knowledge of Clinical Practitioners: Low-Fever Laboratory Examination
(1) Inspections that must be done
1) Blood test: mildly increased white blood cells with increased neutrophils, suggesting bacterial infection; normal or low total number of white blood cells indicates viral infection, tuberculosis or non-infectious hypothermia, such as hyperthyroidism, diencephalon syndrome, Functional hypothermia; anemia patients with reduced hemoglobin may be accompanied by hypothermia; secondary or whole blood cell increase is seen in the bone marrow medical education network to collect and organize proliferative diseases, such as myelofibrosis, chronic myelogenous leukemia, polycythemia vera, etc. , Due to increased metabolism may be accompanied by low fever.
2) Urine examination: Urine leukocytosis is helpful in the diagnosis of chronic urinary tract infections.
3) X-ray examination: chest radiographs and gastrointestinal barium meal radiographs are helpful for the diagnosis of pulmonary tuberculosis and gastrointestinal tuberculosis.
(2) Inspections to be selected
1) Those suspected of having a urinary tract infection who have a negative urine routine test should be repeatedly tested for clean mid-stage urine culture and 1-hour urine cell excretion.
2) Suspected of tuberculosis infection, generally X-ray examination is negative, PPD test should be done, if necessary, can be sputum, urine, cerebrospinal fluid and other tuberculosis culture.
3) Suspected fever of chronic hepatitis and chronic cholecystitis, liver function, hepatitis virus markers and hepatobiliary B-type ultrasound examination should be done; duodenal drainage fluid examination is helpful for the etiological diagnosis of chronic cholecystitis.
4) Immunological examination should be performed for suspected connective tissue disease.
5) Suspected of endocrine disease, you can check triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), thyroid stimulating hormone (TSH), It has a definite diagnostic value for hyperthyroidism; 24-hour urine vanillin mandelic acid (VMA) determination is helpful for the diagnosis of pheochromocytoma.
6) Tumor markers suspected of being cancerous and low fever, such as alpha-fetoprotein (AFP), prostate-specific antigen (PSA), carcinoembryonic antigen (CEA), soluble sugar chain antigen CA19-9, and cancer antigen CA125.
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