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Test Code SP Direct Antigen, Streptococcus pneumoniae, Urine

Important Note

1. If multiple bacterial antigens are desired, order:

  • DA “Direct Antigen Test, Urine” which includes: Haemophilus influenzae Group B, Neisseria meningitidis, streptococcus Group B, and Streptococcus pneumoniae.+

2. If single bacterial antigens are desired order 1 of the following:

  • GBS “Direct Antigen, Group B Streptococcus, Urine”
  • NMA “Direct Antigen, Neisseria meningitidis, Urine”
  • HIB “Direct Antigen, Haemophilus influenza Group B, Urine”

Specimen source is required on all specimens collected

Urine:

  • Indicate method of collection (catherized, clean catch, mid-stream, u-bag or pedi-bag)

Methodology

Latex Agglutination

 

Useful for screening to detect the presence of cellular antigens of Streptococcus pneumoniae, a causative agent of bacterial meningitis.

 

Specimen Requirements

Urine

Container/Tube: Plastic urine container
Specimen Volume: 1 mL (minimum volume: 0.5 mL) from a random urine collection

Collection Instructions: No preservative. Collect urine by catheter, clean-catch, or U-Bag:

 

Catheterized

  1. Do not collect urine from drainage bag.
  2. Disinfect catheter collection port with 70% alcohol.
  3. Use a needle and syringe to aseptically collect urine.
  4. Transfer specimen to sterile tube or container.
  5. Label container/tube with patient’s legal name, date and actual time of collection, and type of specimen.

Clean-Catch, Midstream

       -Males

  1. Cleanse glans with soap and water or benzalkonium chloride towelette.
  2. Rinse area with water or wet gauze pads.
  3. While holding foreskin retracted, begin voiding.
  4. After several mL have passed, collect specimen without stopping flow of urine into a screw-capped, sterile container.
  5. Label container with patient’s legal name, date and actual time of collection, and type of specimen.

      -Females

  1. Thoroughly cleanse urethral area with soap and water or benzalkonium chloride towelette.
  2. Rinse area with water or wet gauze pads.
  3. While holding labia apart, begin voiding.
  4. After several mL have passed, collect specimen without stopping flow of urine into a screw-capped, sterile container.
  5. Label container with patient’s legal name, date and actual time of collection, and type of specimen.

Infants or Small Children

  1. After cleansing appropriately, as above, place a sterile urine bag (U-Bag, Pedi-Bag) over labia or penis.
  2. After 30 minutes, observe for presence of urine. If no urine is present, recleanse patient and attach a new bag.
  3. Transfer specimen to a screw-capped, sterile container.
  4. Label container with patient’s legal name, date and actual time of collection, and type of specimen.

Day(s) Test Set Up

Monday through Sunday

Reference Values

Negative

Critical value (automatic call-back): positive

Performing Laboratory

Logan Health Medical Center Laboratory

Test Classification and CPT Coding

87147

Specimen Transport Temperature

Refrigerate-Urine