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Test Code NBLD0234 Rapid Strep Group A Screen, Reflex to Confirmation

Methodology

Indirect Immunoassay

 

Useful in the diagnosis of Strep throat caused by Streptococcus pyogenes (Group A Streptococcus).

Note: If the rapid test is negative, a backup strep culture will be performed.

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Throat
Container/Tube: Red, double copan culture swab

Specimen Volume: Entire specimen

Collection Instructions: Click here for diagram )

1. Obtain specimen using both swabs from a  red double copan culture swab.
2. Tilt patient’s head back to assist in opening of mouth as wide as possible.
3. Depress tongue with a tongue depressor so swab doesn’t touch oral mucosa or tongue.
4. In 1 continuous motion:

  • Swab 1 tonsillar area up then down.
  • Move to back of throat as far down as possible, and swab there. If the patient has complained of 1 spot being sore, swab that area well.
  • Move to other tonsillar area and swab.
  • Swab behind uvula, and remove swab.

5. Transfer swab back to culture container. Break off stem, and replace cap on transport tube.

6. Label tube with patient’s name (first and last), date and actual time of collection, and type of specimen.

Specimen Transport Temperature

Ambient

Specimen Stability

 

Specimen Type Temperature Time
Double Copan Swab Ambient 48 hours

 

Reference Values

Negative

Critical value (automatic call-back): positive

 

If the rapid test is negative, a backup strep culture will be performed.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

87880