10-minute rapid strep, same-visit throat culture backup, and first-dose antibiotic on-site. Walk in seven days a week.
Joint Commission accredited. Physician on shift every day. Most insurance accepted.
TrufaMED tests for streptococcal pharyngitis with a 10-minute rapid antigen test, seven days a week. Culture backup is sent when clinically warranted. No appointment needed. A typical strep visit — physician evaluation, throat swab, rapid result, and first-dose antibiotic if positive — takes about 25 minutes.
Featured Answer
Strep throat is a bacterial infection that responds quickly to antibiotics and carries a small but real risk of rheumatic fever when untreated. At TrufaMED a board-certified physician scores your symptoms (Centor/McIsaac criteria), runs a rapid strep if indicated, sends a throat culture backup when necessary, and prescribes guideline-based antibiotics for confirmed infection. Most patients walk out with a prescription in under 30 minutes.
Sore throats are overwhelmingly viral. Testing every sore throat leads to false positives, unnecessary antibiotics, and resistance. We use the modified Centor (McIsaac) score to decide who benefits from testing and who is better managed symptomatically.
Score interpretation: 0 to 1 point — strep unlikely, no test, symptomatic care. 2 to 3 points — test with rapid antigen, treat if positive. 4 to 5 points — high pre-test probability, rapid test plus consider empirical treatment while culture pending in high-risk patients. Findings that push toward viral (cough, rhinorrhea, hoarseness, conjunctivitis, mouth ulcers) argue against testing at all.
We do not routinely test or treat asymptomatic household contacts of a strep patient unless they become symptomatic, because chronic carrier rates are common and treating carriers does not reduce complications.
The rapid antigen detection test (RADT) returns a result in 10 minutes and is highly specific — a positive rapid test is a true positive, no culture needed. Sensitivity is the weak point, particularly in children, so we back up negatives with culture when the pre-test probability is high.
| Method | Turnaround | Performance |
|---|---|---|
| Rapid Antigen (RADT) | 10 minutes in-clinic | Specificity approximately 95%, sensitivity 70–90% depending on technique and patient age |
| Throat Culture | 24 to 48 hours | Gold standard; sensitivity 90–95%; used to back up a negative rapid in children and high-risk adults |
| Molecular (PCR/NAAT) | 15 to 60 minutes in-clinic | Sensitivity and specificity both over 95%; used when available to eliminate culture backup step |
Adults: A negative rapid antigen in an adult with a low-to-moderate Centor score is sufficient to rule out strep and we do not culture. A negative rapid in an adult with a high Centor score prompts culture backup.
Children (3 to 14): Because pediatric sensitivity of rapid antigen runs lower and rheumatic fever risk is concentrated in this age group, a negative rapid antigen is routinely backed up by a throat culture. If the culture returns positive 24 to 48 hours later, the pharmacy is notified and antibiotics started.
Under 3 years: Strep pharyngitis is uncommon under age 3, rheumatic fever risk is extremely low, and routine testing is not recommended. Children in this age with pharyngitis are evaluated clinically; we test only when there is a strep-positive household contact or classic scarlet fever rash.
Group A streptococcus has never developed resistance to penicillin. Oral penicillin V or amoxicillin for 10 days remains first-line therapy for confirmed strep pharyngitis. Cephalexin is the alternative for patients with non-severe penicillin intolerance; macrolides and clindamycin are reserved for true IgE-mediated penicillin allergy.
For children, amoxicillin 50 mg/kg once daily (max 1,000 mg) for 10 days offers better palatability than penicillin V and comparable efficacy. Adults take penicillin V 500 mg twice daily or amoxicillin 500 mg twice daily for 10 days. A single intramuscular dose of benzathine penicillin G is an option for patients who cannot complete oral therapy — typically reserved for adherence concerns, ongoing vomiting, or rheumatic fever history.
Cephalexin 40 mg/kg/day divided twice daily (pediatric) or 500 mg twice daily (adult) for 10 days. Cross-reactivity between penicillin and first-generation cephalosporins is low, and cephalexin is safe for patients with a history of mild penicillin intolerance (rash without hives or anaphylaxis).
For patients with documented hives, angioedema, or anaphylaxis to penicillin, we prescribe azithromycin (12 mg/kg/day pediatric, 500 mg day 1 then 250 mg days 2 to 5 in adults) or clindamycin 7 mg/kg three times daily for 10 days. Macrolide resistance in Group A streptococcus is a growing concern — we check regional antibiograms when selecting.
Tetracyclines, trimethoprim-sulfamethoxazole, and fluoroquinolones do not reliably eradicate Group A streptococcus from the pharynx and should not be used for strep treatment. If a patient has been started on the wrong agent elsewhere, we switch them over same visit.
Strep Antibiotic Snapshot
Symptomatic Care
Strep pharyngitis has a classic rash variant — scarlet fever — and a much larger category of look-alike viral illnesses that are treated supportively. Knowing the difference prevents unnecessary antibiotics.
Strep pharyngitis plus a fine, red, sandpaper-textured rash that blanches. Classically starts on the trunk, spares the palms and soles, plus strawberry tongue and circumoral pallor. Same treatment as strep — 10 days of penicillin or amoxicillin.
The larger share of sore throats. Cough, runny nose, hoarseness, conjunctivitis, or mouth ulcers suggest viral. No antibiotic indicated. Symptomatic care, hydration, analgesics, 3 to 7 day self-limited course.
EBV-related pharyngitis in teens and young adults. Often mimics strep with exudate and fever, but posterior chain lymphadenopathy and splenomegaly distinguish. Heterophile (Monospot) testing confirms. Avoid amoxicillin — causes rash.
Viral pharyngitis with oral vesicles or ulcers, sometimes with rash on palms, soles, or perianal area. Common in children. Supportive care, hydration, topical anesthetic mouthwash for pain.
Sexually-transmitted pharyngeal gonorrhea can mimic bacterial pharyngitis in sexually active adults. Considered when strep negative and history warrants. Treated per CDC guidelines.
Allergic rhinitis with post-nasal drainage produces a chronic mild sore throat without fever or exudate. Treatment is antihistamine plus nasal steroid, not antibiotics.
Strep pharyngitis typically resolves on its own in 3 to 5 days with or without antibiotics. We treat it anyway, for four reasons: symptom duration shortens by about 16 hours, contagious period shortens dramatically, post-streptococcal complications are prevented, and transmission to household contacts is reduced.
Rheumatic fever is the most consequential reason we treat strep. It is a delayed autoimmune response (2 to 3 weeks after pharyngitis) that can cause carditis (permanent heart valve damage), polyarthritis, chorea, subcutaneous nodules, and erythema marginatum. Incidence in the U.S. is low today but not zero, and treatment of strep pharyngitis within 9 days of onset effectively prevents it.
PSGN is another delayed immune-mediated complication (1 to 3 weeks after strep), presenting with hematuria, hypertension, and edema. Unlike rheumatic fever, antibiotic treatment of pharyngitis does not reliably prevent PSGN, but early treatment limits severity and reduces the bacterial burden.
Peritonsillar abscess (quinsy), retropharyngeal abscess, and cervical lymphadenitis can develop from untreated or inadequately treated strep. We examine the posterior pharynx carefully, palpate neck nodes, and assess for trismus or drooling that might signal abscess requiring ENT-level drainage.
Strep pharyngitis is highly contagious through respiratory droplets and direct contact. Within 24 hours of starting antibiotics, patients are no longer considered contagious. Household members should be tested if symptomatic; asymptomatic contacts are not treated.
Why Treat Strep
School / Work Return
Strep testing and treatment seems routine, and most cases are. The difference in a boutique medical clinic is testing discipline (not treating viral sore throats as strep), pediatric-appropriate culture backup, and willingness to spot the rare complication before it becomes emergent.
01 · Accreditation
Florida’s Only JC-Accredited Urgent Care
Joint Commission accreditation — the same body that accredits hospitals — audits our sterile technique, medication safety, infection control, and clinical protocols every three years.
02 · Physicians
Every Visit Includes an MD
Every patient is evaluated by a board-certified physician. Led by Dr. Uri Gedalia (Chief Medical Officer) and Dr. Shane D. Naidoo (Medical Director, Emergency Medicine). Meet them on our staff page.
03 · On-Site Lab
Rapid Antigen Plus Culture Backup
In-house rapid strep with 10-minute turnaround and pediatric culture backup through our on-site lab. We follow up with culture results by phone or portal.
04 · Pediatric Ready
Kids Ages 3+ Seen Daily
Our clinicians see children every shift. Kid-friendly swabbing, amoxicillin liquid dosing by weight, and patient-family communication that does not talk over the parent or the child.
05 · Insurance Covered
Covered by Most Major Plans
Strep evaluation and treatment is a standard urgent care visit: Aetna, Cigna, UHC, Humana, Oscar*, Medicare. Self-pay pricing quoted up front — no surprise billing.
06 · Open Seven Days
Walk In When Sore Throat Starts
Evenings and weekends — when sore throat feels at its worst and primary care is closed — are when we are open. Monday-Friday 9 AM-9 PM, Saturday 11 AM-11 PM, Sunday 12 PM-8 PM.
Most sore throats are outpatient problems. Rarely, airway-threatening infections deep in the neck require emergency department evaluation and possibly surgical drainage.
Go to the ER or call 911 if:
If you are unsure whether your symptoms are urgent-care level or ER level, come in. We triage on arrival and transfer to the ER when the airway or deep-space infection concerns warrant it. Missing an epiglottitis or peritonsillar abscess is the kind of error we build our workflow to avoid.
The questions our physicians answer most often about rapid strep testing and treatment.
TrufaMED is at 9445 Harding Ave in Surfside — minutes from Bal Harbour, Bay Harbor Islands, Miami Beach, Sunny Isles, and Aventura. Walk in without an appointment seven days a week.
9445 Harding Ave, Surfside, FL 33154 · Contact our team · Walk-in only — no appointment needed.
Monday – Friday
9 AM – 9 PM
Saturday
11 AM – 11 PM
Sunday
12 PM – 8 PM
TrufaMED is Florida’s only Joint Commission-accredited urgent care. In addition to strep throat testing, we handle the full urgent care spectrum including UTI treatment, influenza, stomach flu, migraine, and sore throat. Most insurance accepted. Self-pay patients welcome.
Strep throat evaluation, rapid antigen testing, culture when indicated, and antibiotic treatment are standard urgent care services covered by most major plans.
Rapid strep testing, culture backup, and first-dose antibiotic on-site when indicated. No appointment needed. Most insurance accepted.
Medical Disclaimer: Content on this page is provided for general informational purposes only and does not constitute medical advice. Sore throat presentations vary, and proper diagnosis and treatment require an in-person physician evaluation. If you are experiencing difficulty breathing, inability to swallow saliva, stridor, drooling, or any other airway or life-threatening symptom, call 911 or go to the nearest emergency department immediately. TrufaMED Urgent Care & Concierge Medicine — 9445 Harding Ave, Surfside, FL 33154. Joint Commission accredited.
TrufaMED concierge members get 24/7 physician access, same-day appointments, and on-site diagnostics under one roof.
Learn About Concierge Medicine →TrufaMED Urgent Care is located at 9445 Harding Ave, Surfside, FL 33154, at the corner of Harding Avenue and 95th Street. We are just 2 minutes from Bal Harbour Shops, steps from the Surfside Community Center, and easily accessible via Collins Avenue from Miami Beach, Bal Harbour, and Sunny Isles Beach.
Guests at nearby hotels including the Four Seasons Surf Club, The St. Regis Bal Harbour Resort, and the Faena Hotel Miami Beach are just minutes away. We also serve patients from Aventura, Bay Harbor Islands, Indian Creek, and North Miami Beach.
Open 7 days a week • No appointment needed • Walk-ins welcome • (305) 614-2545