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Test Name:
Bacterial Antigen Detection Panel, LA


  • SBMF No:
    33061
  • Performance Lab Name:
    Focus Diagnostics
  • Test Mnemonic:
    BAD-
  • ABN:
    Not required
  • CPT Code:
    86403x5
  • LOINC Code:
    19146-0
  • Ref Lab Test No:
    2245 (Quest# S49879)
  • Test Includes:
    Haemophilus influenzae type b Antigen Detection, LA
    Neisseria meningitidis Antigen Detection (Groups A/Y and C/W 135), LA
    Neisseria meningitidis Detection (Group B/E. coli K1), LA
    Streptococcus, Group B, Antigen Detection, LA
    Streptococcus pneumoniae Antigen Detection, LA
  • Also Known As:
    BAD
    BAT
  • Also See:
    21300 Culture, Cerebrospinal Fluid (Includes Smear)
  • Spec Type:
    Cerebrospinal fluid (CSF)
  • Spec Container:
    Sterile plastic tube with screw-top cap
  • Alt Spec Type:
    Serum
  • Alt Spec Container:
    Red top (serum) tube
  • Pref Vol:
    2.0 mL
  • Min Vol:
    1.3 mL
  • Fasting:
    No
  • Spec Collect:
    CSF: Collected by physician
    Serum: Routine venipuncture
  • Spec Process:
    CSF:
    • Do not centrifuge
    • Freeze and transport frozen
    Serum:
    • Clot 30 minutes
    • Promptly centrifuge 15 minutes
    • Immediately transfer serum to a sterile plastic tube and freeze
  • Spec Store Transport:
    Frozen
  • Spec Stability:
    Room temperature (20-30°C): Unacceptable
    7 days refrigerated (2-8°C)
    12 months frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Spec Reject:
    Urine and other body fluids are NOT accepted
  • Spec Remarks:
    Submit in sterile container
  • Methodology:
    Latex Agglutination
  • Clinical Significance:
    Specific soluble bacterial capsular polysaccharide antigens accumulate in CSF, serum, or urine. This is a presumptive latex agglutination test for the direct qualitative detection of bacterial antigen. Visible agglutination occurs when a sample containing a bacterial antigen reacts with specific polyclonal antibody-coated latex particles. This test is not intended as a substitute for a properly performed Gram stain and bacterial culture. Confirmatory diagnosis of bacterial meningitis is only possible with appropriate culture procedures. Samples with extremely low levels of antigen may yield negative results. Nonspecific reactions are known to occur, especially with urine samples. Cross-reactions and interference by rheumatoid factor and other substances have also been reported.
  • Reference Range:
    Not detected
  • Additional Test Info:

    Cytospin Gram stain is a more rapid, sensitive, and specific method for detection of pathogens for bacterial meningitis. Refer to Culture, Cerebrospinal Fluid (Includes Smear) (21300).

    This test is referred through Quest Diagnostics Nichols Institute.

  • Day Run:
    Sun-Sat
  • Time Reported:
    3-5 days
  • Test Type:
    INFECTIOUS ORGANISM

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