When your child has a fever, sore throat, stomach upset, or a rash that is getting harder to ignore, waiting days for answers can feel stressful. On-site lab testing can help narrow down what is causing the symptoms in the same visit, so you can move from uncertainty to a clear care plan sooner.

At ABC Pediatric Urgent Care - Eugene Chung, MD, we offer on-site lab testing for children and young adults ages 0 to 21 at our Ashburn, VA location. If your child needs a rapid check for illness, an infection, or another common concern, you can walk in for care without an appointment and get evaluated during the same visit.


When testing helps

Not every illness needs a lab test, but some symptoms are much easier to treat once the source is better understood. Testing can help when a child has signs that overlap between common conditions, such as a cold that could also be flu, strep, an ear-related infection, or another illness that needs a different approach.

We may recommend testing when a child has:

  • Fever that does not have a clear cause
  • Sore throat, cough, or congestion that is worsening
  • Vomiting, diarrhea, or stomach pain
  • Skin changes that may be related to infection or irritation
  • Eye symptoms, such as redness or drainage
  • Symptoms that have lasted longer than expected

Testing can also support a school, sports, or activity-related visit when a quick medical answer helps guide what comes next.


What we test for

On-site lab testing at our clinic is designed to support urgent pediatric and young adult care. Depending on the symptom pattern, we may use tests that help identify the cause of illness or confirm whether a condition is likely viral, bacterial, or related to something else that should be watched more closely.

Common visit concerns

These are the kinds of symptoms that often lead families to seek testing during a walk-in visit:

  • Fever and flu-like symptoms
  • Cold symptoms that are not improving
  • Possible infections affecting the throat, ears, skin, lungs, or stomach
  • Minor injuries that may need closer evaluation
  • Allergy or asthma-related flare-ups that need medical review

Supporting urgent care decisions

Testing is often one part of a larger visit. The exam, symptom history, and lab results all work together so we can recommend care that matches what your child is actually experiencing. That may mean home care instructions, a treatment plan, or referral to a pediatric specialist when a closer follow-up is needed.


How visits work

Walk in, check in, and tell us what has changed. Because many families visit during active symptoms, the process is built to be efficient and focused on what your child needs now. You do not need to book ahead for a visit.

  1. Share symptoms. Tell us what your child has been feeling, how long it has been going on, and whether anything has changed recently.
  2. Clinical exam. We review the symptoms and perform an exam to decide whether lab testing is helpful.
  3. Testing. If needed, we collect the appropriate sample during the visit.
  4. Review results. We explain what the findings mean and talk through next steps.
  5. Plan of care. You leave with clear guidance on treatment, follow-up, or any further evaluation that may be appropriate.

ABC Pediatric Urgent Care serves families seven days a week from 11:00 AM to 11:00 PM, which gives parents and caregivers a practical option when a child’s symptoms cannot wait for a later appointment.


Why quick answers matter

When children feel sick, symptoms can change quickly. A child who seemed tired at breakfast may be resting all afternoon or refusing to eat by dinner. On-site lab testing helps reduce guesswork, which can matter when deciding whether a problem is likely minor, needs treatment, or should be followed closely.

Families often choose testing because it can:

  • Shorten the time between visit and next-step guidance
  • Help separate similar-looking illnesses
  • Support more targeted care decisions
  • Reduce unnecessary back-and-forth between providers
  • Give parents clearer direction for home care

For pediatric and young adult patients, that clarity can make the rest of the day easier to manage.


Conditions we often see

On-site lab testing may be used alongside care for a wide range of acute and wellness-related concerns. The exact test depends on age, symptoms, and exam findings, but it is often helpful for common illnesses that come through urgent care.

Illness visits

Fever, cough, sore throat, flu symptoms, stomach upset, and infections are common reasons families come to our Ashburn clinic. Testing can help confirm what fits best and guide treatment decisions.

Injury and procedure visits

For minor injuries, minor procedures, or symptoms that raise questions about infection, testing may support the care plan when a closer look is needed.

Wellness-related needs

Sports physicals and new patient visits may also include review of current health concerns, making the visit more useful when a child needs both evaluation and practical follow-up.


What to bring

A little preparation can make the visit smoother, especially if your child is not feeling well. You do not need a long checklist, but bringing a few basics helps us understand the situation faster.

  • A list of current symptoms and when they started
  • Any medications your child is taking
  • Details about recent fever, exposures, or worsening symptoms
  • Past medical history that may matter for the visit
  • Questions you want answered before you leave

If your child has been seen elsewhere recently, sharing that information can also help connect the dots during the evaluation.


Our Ashburn office

ABC Pediatric Urgent Care - Eugene Chung, MD is located at 23634 Strickland Dr #110, Ashburn, VA 20148. Families across Ashburn, VA can come to us for walk-in urgent care, same-day visits, and on-site lab testing for children and young adults ages 0 to 21.

We are open Monday through Sunday from 11:00 AM to 11:00 PM. If you need help deciding whether testing is the right next step, you can call (703) 687-6822 before coming by or simply walk in during open hours.


Common questions

What symptoms usually lead to on-site lab testing?

Fever, sore throat, coughing, congestion, stomach symptoms, skin concerns, and infection-related complaints are common reasons a clinician may suggest testing during the visit.

Do I need an appointment for lab testing?

No appointment is necessary. You can walk in for care during our open hours and we will determine whether testing makes sense after the evaluation.

Can testing be used for a child with a fever?

Yes. Fever is one of the most common reasons families seek urgent care, and testing can help identify whether the cause is likely viral, bacterial, or something else that needs a different plan.

Is testing helpful for stomach illness?

It can be. When a child has vomiting, diarrhea, or stomach pain, lab testing may help guide the visit if the symptoms suggest an illness that should be checked more closely.

Can on-site testing support sports physical visits?

It may, depending on what is discussed during the visit. If new symptoms come up during a sports physical, testing can help address them without sending you to another location first.

Will I get next-step guidance after the test?

Yes. We review the findings and explain what they mean so you understand whether home care, follow-up, or additional evaluation is recommended.


Start here

If your child needs answers today, on-site lab testing can make the visit more useful and less stressful. ABC Pediatric Urgent Care in Ashburn, VA is ready to help families with practical, same-day evaluation for common pediatric illnesses and related concerns.

Come by our clinic at 23634 Strickland Dr #110, Ashburn, VA 20148, or call (703) 687-6822 to speak with our office before you arrive.

Bright pediatric clinic corridor with open space and soft natural light.

Ready When Your Child Needs Care

Speak With ABC Pediatric Urgent Care

Call our Ashburn office to ask about walk-in visits, same-day availability, or the services best suited for your child or young adult.