Throat Culture, Predominant Organisms THRC

Method(s) Culture
Specimen Required
Collect

Eswab or red cap collection device.

Transport

Swab the posterior pharynx or other inflamed tissue at 20-25ºC.

Stability

Ambient: 48 hours; Refrigerated: 72 hours

Schedule Daily
Billing Code 3010144
CPTCode 87070
Notes

1. The throat culture for predominant organisms is intended to rule out Beta Strep Group A and the less common cause of bacterial pharyngitis: Beta Strep Group C and G. Please make a special note to r/o Arcanobacterium haemolyticum if this unusual pathogen is suspected.

2. To rule out Group A Strep only, the Group A Strep DNA (GASM) is a rapid test equivalent to culture with next day results. The red cap collection device is the preferred collector, but an Eswab may also be submitted.

3. The throat culture (THRC) allows for susceptibility testing of Clindamycin and Erythromycin for Pen allergic patients, but takes 2-3 days to complete. Note, Group A Strep are still uniformly susceptible to penicillins and cephalosporins.

4. To rule out yeast, order a Fungal Culture (FUNC).

Preferred Specimen Collection Device(s)
Reference Interval

Normal Flora; Negative for Beta Strep Group A, C, and G.

No Appointment Necessary
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