Lake Worth residents are served by a community known for the Lake Worth reservoir and Castle Hills. What Lake Worth lacks is a 24/7 freestanding emergency room offering strep, mono and flu testing. Urgent care clinics near Lake Worth often require an appointment, and many primary care offices aren't open at night or on weekends.
That's why Lake Worth residents rely on ER Of Fort Worth at 4561 Heritage Trace Parkway — just 16 miles from Lake Worth via Hwy 199 & I-820. We are open 24 hours a day, 7 days a week, 365 days a year. When you need strep, mono and flu testing near the Lake Worth reservoir and Castle Hills, our testing team is ready.
Rapid testing Lake Worth trusts.
When it matters, where you go makes a difference. Here is why Lake Worth residents near the Lake Worth reservoir and Castle Hills choose ER Of Fort Worth.
20-minute drive from Lake Worth
Take Jacksboro Highway (Hwy 199) east to I-820, then north to I-35W and Heritage Trace Parkway.
Board-certified ER physicians
Every Lake Worth patient is treated by an Emergency Medicine specialist — not just a PA or NP.
Results in minutes
Rapid strep, mono and flu testing on-site.
Same-visit treatment
Antibiotics or antivirals started right away when needed.
Signs it might be strep, mono or flu.
Tests we offer.
- ✓Rapid strep throat test
- ✓Mono (mononucleosis) test
- ✓Rapid flu (influenza A/B) test
- ✓Throat culture when needed
Get tested if you have—
- —A severe or worsening sore throat
- —High fever with body aches
- —Fatigue lasting more than a week
- —Difficulty swallowing or breathing
- —Known exposure to strep, mono or flu
Feeling awful right now?
Walk in for rapid testing — no appointment needed.
Treatment we offer.
Same-visit antibiotics for strep
Started right away when the rapid test is positive.
Antiviral treatment for flu
When appropriate and within the treatment window.
IV fluids for dehydration
If illness has left you unable to keep fluids down.
Guidance for mono recovery
Since mono has no cure, we focus on symptom relief and activity guidance.
Getting to our ER from Lake Worth, TX.
We are located at 4561 Heritage Trace Parkway, Suite 117, Fort Worth, TX 76244 — approximately 16 miles from Lake Worth. The drive typically takes 20 minutes or less under normal traffic conditions.
- 1 Primary route: Take Jacksboro Highway (Hwy 199) east to I-820, then north to I-35W and Heritage Trace Parkway. Total: ~16 miles, ~20 min.
- 2 Alternate route: From Castle Hills, follow Lake Worth Blvd to Hwy 199 east, connecting to I-820 northbound. Total: ~16 miles, ~20 min.
- ! Tip: Call 817-945-4200 from Lake Worth with any questions before you arrive.
Why ER Of Fort Worth for Lake Worth's rapid testing.
Results in minutes
No waiting days for lab results.
Same-visit treatment
Start antibiotics or antivirals right away when appropriate.
No appointment needed
Walk in 24/7, any day of the year.
All major insurance accepted
Plus transparent self-pay options.
Insurance accepted.
Lake Worth residents should not delay care due to insurance questions. We accept all major commercial insurance, Medicare, Medicaid, Tricare and many more. View our full accepted insurance list —
Self-pay pricing is also available and discussed transparently before treatment.
Questions from Lake Worth patients.
How long does a rapid strep test take?
Rapid strep tests typically return results in about 10–15 minutes, so we can start antibiotics the same visit if positive.
How is mono diagnosed?
Mono is usually diagnosed with a blood test that checks for antibodies related to the Epstein-Barr virus, along with a physical exam and symptom review.
Can you treat the flu?
We can test for flu and, when appropriate and within the treatment window, prescribe antiviral medication. We also treat symptoms like fever, dehydration and body aches.
How long is mono contagious?
Mono can remain contagious for weeks to months after symptoms resolve, spread primarily through saliva. Your ER physician can discuss precautions during recovery.
Do I need an appointment for testing?
No. Walk in any time — we're open 24/7. You can also use online check-in to save time when you arrive.
How far is ER Of Fort Worth from Lake Worth TX?
We are approximately 16 miles from Lake Worth — about 20 minutes under normal traffic. Take Jacksboro Highway (Hwy 199) east to I-820, then north to I-35W and Heritage Trace Parkway.
What is the fastest route from Lake Worth to your ER?
Take Jacksboro Highway (Hwy 199) east to I-820, then north to I-35W and Heritage Trace Parkway. From Castle Hills, follow Lake Worth Blvd to Hwy 199 east, connecting to I-820 northbound. For turn-by-turn directions, enter "4561 Heritage Trace Pkwy, Fort Worth, TX 76244" into Google Maps or Apple Maps.
Can Lake Worth patients use online check-in?
Online check-in at /online-check-in/ is available for non-emergency visits. If your symptoms are severe or urgent, call 817-945-4200 or come straight in instead.