Test Code LAB236 Strep A Culture, Throat
Useful For
The culture confirmation of a negative Rapid Group A Strep test
Methodology
Conventional Biochemical Identification Methods
Performing Laboratory
Bozeman Health Laboratory Services
Specimen Requirements
Submit only one of the following specimen types:
Specimen Type: Throat swab
Container/Tube: Red, double copan culture swab
Specimen Volume: Adequate amount
Collection Instructions: ( Click here for diagram )
1. Obtain specimen using 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 Type: Throat swab
Container/Tube: ESwab collection kit
Specimen Volume: Adequate amount
Collection Instructions:
- Place the patient in a seated position facing the light.
- Instruct patient to open mouth as wide as possible. If needed, use tongue depressor to press the tongue downward to the floor of the mouth so that the throat can be seen.
- Rub the swab tip up and down the back of the throat, the tonsils, and against any white patches in the tonsillar area.
- Remove swab from the mouth. Do NOT touch the tongue, cheeks, teeth, or gums with the swab.
- Insert the swab into the ESwab transport media tube. Swirl the swab against the inside wall of the tube 3 times.
- Break the swab shaft and leave the swab in the tube. Attach the cap securely.
- Label tube with patient’s name (first and last), date and actual time of collection, and type of specimen.
Specimen Rejection:
- Cotton swabs
- Calcium alginate swabs
- Swabs with a wooden shaft
- Swabs not received within 48 hours
Specimen Transport Temperature
Ambient
Specimen Stability
Specimen Type | Temperature | Time |
---|---|---|
Copan swab or ESwab | Ambient | 48 hours |
Refrigerated | 48 hours |
Reference Values
Negative
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
87081-Culture, presumptive, pathogenic organisms, screening only
87077-Aerobic identification (if appropriate)
Additional Information
Identification will be performed, if appropriate, at an additional charge.