General
CRP Test
Lab test

CRP Test

Ordered when inflammation is suspected but the source is unclear, for monitoring known inflammatory or autoimmune conditions, or as part of cardiovascular risk assessment when high-sensitivity CRP is indicated. No fasting required. Results reviewed by a General Medicine clinician.

Receive actionable insights and deep analysis—not just lab values– in as little as 48 hours

Clear guidance, and follow-up care available

Simple, online scheduling for labs and everything else

Most insurance accepted

Board-certified

No hidden fees

Available nationwide

What is a CRP Test?

The CRP (C-reactive protein) test measures a protein the liver produces in response to inflammation anywhere in the body. It's a sensitive and rapidly responsive marker — levels can rise significantly within hours of an inflammatory trigger — making it one of the most useful tests for detecting active infection, monitoring autoimmune flares, and assessing cardiovascular risk.

Infection and acute inflammation

CRP rises sharply in response to bacterial infection, tissue injury, and acute inflammatory conditions. Markedly elevated CRP alongside clinical symptoms helps confirm significant active inflammation and guides decisions about treatment and further investigation.

Autoimmune disease monitoring

In conditions like rheumatoid arthritis, lupus, and inflammatory bowel disease, serial CRP measurements track whether inflammation is active or in remission — providing an objective marker to complement symptom reporting and guide therapy adjustments.

Cardiovascular risk assessment

At lower levels, CRP (measured as high-sensitivity CRP) reflects chronic low-grade inflammation associated with increased risk of heart disease and stroke. It adds meaningful risk information beyond standard cholesterol testing, particularly in people with intermediate cardiovascular risk.

Complete insights in as little as 48 hours

1

Book your test

Instantly schedule at 2,000+ labs nationwide, at a time that works for you. Most visits take 15 minutes or less, with both walk-ins and appointments available.

2

Get results in 48 hours

Your results are delivered quickly—and reviewed by medical professionals. You’ll get clear explanations, robust health insights, and recommended next steps tailored to your health needs.

3

Take action with physician guidance

Choose to review your results and manage your plan with a General Medicine physician—or simply use the insights on your own.

4

Track progress over time

Repeat annually to see trends, improvements, and new emerging risks or book individual tests that focus on your set goals

All your care in one place. That’s the General Medicine difference.

We help you understand your options, connect you to the right clinicians, manage prescriptions, coordinate any needed evaluations, and keep an eye on your overall health along the way. It’s comprehensive care that looks at the full picture — your goals, your history, your lifestyle — and makes it simple to move forward with confidence.

Your care plan
Clinician

What's included

Test type

Blood sample

Collection method

Venipuncture

Fasting

Not required

Results processing time

1 to 3 days

C-Reactive Protein (CRP)

Shows the presence and level of inflammation in your body, helping doctors track various conditions.

Virtual visit with clinician

Ongoing support, always available.

You’ll be supported by experienced clinicians who care for a wide range of health needs, from everyday concerns to more complex conditions.

Our clinicians track your progress over time and adjust your care as needed. If medication is prescribed, we’ll manage dosing and monitor for side effects. If lab testing is recommended, we review results and refine your plan accordingly. You’re never left to navigate care on your own.

What our customers have to say

Hear from people who felt heard, understood, and supported on General Medicine.

“I found the ease of setting the appointment and how quickly I was able to be seen to be amazing. The physician was very friendly and amazingly helpful.”

Natalie, Texas

“The chat visit was super convenient. The doctor was friendly and took the time needed to answer any questions I had. The prescription I needed was called in and ready the same afternoon.”

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Ann, Florida

“General Medicine is easily the most approachable, efficient, high-quality, and responsive care team I've had the pleasure of working with.”

John, Utah

“General Medicine helped me get the imaging and blood work I needed, referred me to the right specialists, and even helped me find a new family doctor.”

Bridget, Mississippi

Order your lab today.

Frequently asked questions

What does a CRP test measure?

CRP (C-reactive protein) is a protein produced by the liver in response to inflammation. Elevated CRP indicates active inflammation somewhere in the body — but it doesn't identify the cause. It's used as a nonspecific marker for infection, autoimmune flares, or cardiovascular risk (as high-sensitivity CRP).

What is the difference between a standard CRP and a high-sensitivity CRP (hs-CRP)?

Standard CRP is used to detect significant inflammation (from infection or autoimmune disease). High-sensitivity CRP (hs-CRP) measures lower levels of chronic, low-grade inflammation — used specifically as a cardiovascular risk marker. Make sure you know which test is ordered and why.

Do I need to fast for a CRP test?

No fasting is required, though some guidelines suggest avoiding strenuous exercise and alcohol for 24 hours before hs-CRP testing for cardiovascular risk, as these can transiently elevate levels.

If my CRP is elevated, what does that mean?

It means inflammation is present, but the test doesn't tell you where or why. Common causes include infection, autoimmune conditions, obesity, cardiovascular disease, and tissue injury. Elevated CRP always needs to be interpreted in the context of your symptoms and full clinical picture.

Can my CRP be elevated even when I feel fine?

Yes — chronically elevated CRP from low-grade inflammation can occur without obvious symptoms and is associated with increased cardiovascular risk. This is why hs-CRP is used as part of cardiovascular risk assessment even in asymptomatic individuals.
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