antistreptolysin


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antistreptolysin

[‚an·tē‚strep·tə′līs·ən]
(immunology)
The antibody that neutralizes the streptolysin of group A hemolytic streptococci.
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Patients were considered to have a PGN if at the time of biopsy the patient had no report of a known systemic disease and had negative serology for hepatitis B and C viruses (HBV and HCV), HIV and syphilis, a negative antistreptolysin O titre, negative antinuclear antibodies and negative anti-neutrophil cytoplasmic antibodies.
Laboratory work revealed a normal CBC and differential, an elevated C-reactive protein (CRP) and sedimentation rate (ESR), negative antistreptolysin O (ASO) titers, a negative pregnancy test, a normal urinalysis, and negative blood, throat, and urine cultures.
Further rheumatologic laboratory evaluation was notable for an elevated antistreptolysin O (ASO) titer of 1310 IU (reference range <200 IU).
Laboratory work revealed a normal CBC and differential, elevated C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), negative antistreptolysin O (ASO) titers, negative pregnancy test, normal urinalysis, and negative blood, throat, and urine cultures.
In evaluating the patient's laboratory; complete blood counts were within normal limits and antistreptolysin 0, erythrocyte sedimentation rate and C-reactive protein values were normal.
(5) This connection notwithstanding, there is insufficient evidence demonstrating that persistent group A streptococcal infection is present in plaque psoriasis because (1) the group A pathogen Streptococcus pyogenes is not easily cultured and (2) elevated antistreptolysin titers are not present in all affected individuals.
Antistreptolysin O (ASO) titer and liver function tests were normal.
He had a negative result for antistreptolysin O titers (ASOTs).
To distinguish between a viral and a bacterial origin, laboratory testing such as throat swab culture, rapid antigen detection testing (RADT), or antistreptolysin titres (ASOT) is necessary.
Serum protein electrophoresis (SPEP) showed a normal pattern with no monoclonal protein, and antistreptolysin O (ASO) titer was negative.
GAS, Streptococcus pyogenes; PSL, prednisolone; sIL-2R, soluble interleukin-2 receptor; ASO, antistreptolysin O antibody; WBC, white blood cell counts; CRP; C-reactive protein, CTRX, ceftriaxone; ABPC, ampicillin; CLDM, clindamycin; IVIG, immunoglobulin; and VATS, video-assisted thoracoscopic surgery.
The following investigations were done: complete haemogram, renal and liver function tests, urine analysis, antinuclear antibody (ANA), antineutrophilic cytoplasmic antibody (ANCA), Rheumatoid factor (RF), C-reactive protein (CRP), cryoglobulins, lupus anticoagulant, HBsAg, anti-HCV antibody, antistreptolysin O (ASO) titre, throat swab for culture and sensitivity, Chest X-ray and Mantoux test.