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Test Code LAB236 Strep A Culture, Throat

Important Note

This test may only be ordered when a Rapid Strep test has been performed in the office and found to be negative.  This test is used to back up a negative Rapid Group A Strep test.

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:

  1. Place the patient in a seated position facing the ​light.​
  2. 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.​
  3. Rub the swab tip up and down the back of the ​throat, the tonsils, and against any white patches in the tonsillar area.​
  4. Remove swab from the mouth.  Do NOT touch the tongue, cheeks, teeth, or gums with the swab.
  5. Insert the swab into the ESwab transport media tube. Swirl the swab against the inside wall of ​the tube 3 times.
  6. Break the swab shaft and leave the swab in the tube. Attach the cap securely.
  7. 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.