الوصف
A rapid latex agglutination test designed for the qualitative detection of bacterial antigens from several important pathogens in clinical samples. It detects antigens of Streptococcus group B, Haemophilus influenzae type b, Streptococcus pneumoniae, Neisseria meningitidis groups A, B, C, Y, W135, and Escherichia coli K1. Samples should ideally be tested as soon as possible to avoid antigen degradation.
دواعي الإستعمال
Latex agglutination (LA) allows rapid detection of bacterial antigens in CSF. Sensitivity varies greatly between bacteria. However, LA can be useful in partially treated meningitis cases where cultures may not yield an organism. Since false positives lead to unnecessary treatment, LA is not routinely used today. Some experts suggest using LA in cases of suspected bacterial meningitis if the initial Gram stain and bacterial culture are negative after 48 Hs. For all CSF specimens, back-up culture should be routinely performed on both positive and negative specimens.
نوع العينة والكمية والشروط
CSF: 1-2 mL sample collected Blood culture: 8-10 mL collected per bottle Other fluids: 0.5 to 3 mL Stability: Tested as soon after collection as possible. If the specimen cannot be tested immediately, it may be stored overnight at 2 to 8°C (in the refrigerator)
إحتياطات خاصة
Tested as soon after collection as possible. If the specimen cannot be tested immediately, it may be stored overnight at 2 to 8°C (in the refrigerator)
المعدل الطبيعي
سلبي (Negative)