How we decide when imaging or labs are needed

Audience: all

When you see a healthcare provider through telemedicine, they may decide that additional tests like imaging (X-rays, CT scans, MRIs) or laboratory tests (blood, urine) are needed to better understand your health. These tests help provide more information beyond what can be learned from talking and looking at symptoms alone. However, not every situation requires these tests. Providers consider your symptoms, medical history, and risks before recommending them. Sometimes, tests are needed urgently, while other times they can wait or may not be necessary at all. This guide explains how healthcare providers make these decisions and what you can expect during and after your telemedicine visit.

Red flags — go in person / ER

• Sudden chest pain or difficulty breathing — seek emergency care immediately.
• Severe headache with vision changes or weakness — get urgent medical evaluation.
• High fever that does not improve or worsens over 24 hours — contact your healthcare provider promptly.

What telemedicine can do

• Initial assessment of symptoms to determine if tests may be needed.
• Explaining the purpose and process of recommended imaging or lab tests.
• Reviewing test results and discussing next steps with patients.
• Providing guidance on where and how to get tests done locally.

What telemedicine cannot do

• Performing physical exams that require hands-on assessment.
• Conducting imaging or laboratory tests remotely.
• Managing emergencies that require immediate in-person intervention.
• Providing definitive diagnosis without appropriate tests when needed.

Why Imaging and Lab Tests Matter

Imaging and lab tests give doctors important clues about your health. Imaging lets them see inside your body to check for injuries, infections, or other problems. Lab tests analyze samples like blood or urine to find signs of illness or check how well organs are working. These tests can confirm a diagnosis or help guide treatment decisions.

When Tests Are Usually Recommended

Tests are often recommended when symptoms are unclear, severe, or persistent. For example, if you have chest pain, unexplained fever, or sudden weakness, imaging or labs may be needed. Your provider will also consider your age, medical history, and risk factors. Sometimes tests are done to monitor ongoing conditions or to check if treatments are working.

How Providers Decide During Telemedicine Visits

During a telemedicine visit, your provider will ask detailed questions about your symptoms and medical history. They may guide you through a visual exam using your camera. Based on this information, they decide if tests are needed. If so, they will explain why and how to get them done locally or at a lab. They also discuss what the results might mean and next steps.

What to Expect After Tests Are Ordered

Once tests are ordered, you may need to visit a lab or imaging center. After results come back, your provider will review them with you, often in a follow-up telemedicine visit or call. They will explain what the results mean and whether further care is needed. Sometimes no problems are found, which can be reassuring.

Balancing Benefits and Risks

Tests can provide valuable information but may also have risks like radiation exposure or discomfort. Providers weigh these factors carefully before recommending tests. They aim to order only tests that are likely to help with diagnosis or treatment.

How to prepare for your tele-visit

• Have a list of your current symptoms and how long they have lasted.
• Know your medical history, including past illnesses and medications.
• Prepare any previous test results or medical records if available.
• Find a quiet, well-lit place with good internet connection for your telemedicine visit.
• Have a notepad or device ready to write down instructions or questions.

After your tele-visit

• Schedule and complete any recommended imaging or lab tests as instructed.
• Keep a record of your test appointments and results.
• Attend follow-up telemedicine visits to discuss test results and care plans.
• Contact your healthcare provider if your symptoms worsen or new symptoms appear.
• Follow any treatment or monitoring plans advised by your provider.

FAQs

Why can't all tests be done during a telemedicine visit?

Telemedicine allows for remote consultation but cannot perform physical procedures like drawing blood or taking X-rays. These require specialized equipment and trained staff at clinics or labs.

How do I know if I need imaging or lab tests?

Your healthcare provider will assess your symptoms and medical history during the telemedicine visit. They recommend tests if these will help clarify your diagnosis or guide treatment.

Are imaging and lab tests safe?

Most tests are safe when done appropriately. Imaging tests that use radiation are carefully controlled to minimize exposure. Lab tests usually involve only small samples and carry minimal risk.

Can I get test results through telemedicine?

Yes, providers often review test results with you during a follow-up telemedicine visit or phone call, explaining what they mean and next steps.

What should I do if I cannot access a lab or imaging center easily?

Discuss this with your provider during your telemedicine visit. They can help find options or decide if tests can be delayed safely.

Sources

1. MedlinePlus: Diagnostic Tests — U.S. National Library of Medicine / National Institutes of Health.
2. When to Get Medical Tests — Mayo Clinic.
3. Laboratory Tests and Procedures — Centers for Disease Control and Prevention (CDC).
4. Imaging Tests — Merck Manuals: Consumer Version.

This guide provides general information about imaging and lab tests in telemedicine but is not a substitute for in-person medical care. If you have urgent or severe symptoms, seek emergency or face-to-face evaluation promptly. Always follow your healthcare provider's advice and local medical guidelines.