On your lab requisition: Labcorp “C-Reactive Protein, Cardiac” (test no. 120766)
The short answer
General inflammation marker — elevated in infections, autoimmune conditions, and chronic disease, measured from a standard blood draw. At TestWell it costs $26.99 plus a $6 lab processing fee, needs no fasting, and results post in 2–4 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp.
Hospital Lab
$80
cash pay
Other Labs
$30
+ lab fees
TestWell
$26.99
+ $6 lab processing fee
C-Reactive Protein (CRP) is a protein produced by the liver in response to inflammation anywhere in the body. Unlike hs-CRP (which measures very low levels for cardiac risk), standard CRP measures higher levels associated with infections, autoimmune conditions, inflammatory bowel disease, and tissue injury. It's a general marker that indicates something is causing inflammation but doesn't specify the source.
Standard (non-high-sensitivity) C-Reactive Protein. Marker of acute inflammation, used to monitor infection severity, autoimmune flares, and post-surgical inflammation.
Anyone with suspected acute infection, monitoring an autoimmune condition (RA, lupus), tracking post-surgical recovery, or with unexplained fever.
Sample Type
Blood draw
Fasting
Not required
Results In
2–4 business days
Performed At
Quest or Labcorp
Your C-Reactive Protein (CRP) results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 2–4 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
No fasting required.
What can throw off this result
Physician-reviewed “Before your test” pages — what each factor does, for how long, and what to do about it.
A C-Reactive Protein (CRP) test costs $26.99 at TestWell — $32.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $80.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $26.99 | $32.99 | Includes the one $6 lab processing fee, charged once per order |
| TestWell (drawn at BioReference — New York & New Jersey) | $20.99 | $26.99 | New York and New Jersey orders route to BioReference; Quest Health and Labcorp OnDemand don't take self-ordered draws in those states |
| Hospital outpatient lab, self-pay (typical) | $80.00 | $80.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 4420 · Labcorp test no. 120766 · BioReference code 0069-5. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
hs-CRP measures the same protein but detects much lower levels — used for cardiovascular risk assessment (chronic low-grade inflammation). Standard CRP is for acute inflammation (infection, flare). Use hs-CRP for heart health, standard CRP for active illness investigation.
TestWell charges $26.99 — vs $29 at Quest Direct and $50-$120 at hospital labs.
<10 mg/L is the standard reference. <3 mg/L for cardiovascular risk monitoring (hs-CRP cutoff). >100 mg/L typically indicates bacterial infection or major inflammation.
Rises within 6-8 hours of an inflammatory trigger, peaks around 48 hours, normalizes within days once the trigger is resolved. That makes it a useful real-time monitor for infection severity and treatment response.
Exercise and recent illness can change a C-Reactive Protein (CRP) test result without anything being wrong. Exercise can raise CRP — rest 48 hours before an inflammation marker. Recent illness can raise CRP — wait 2 weeks (hs-CRP needs a well baseline). Each factor is covered on our physician-reviewed "Before your test" pages; when one applies, the fix is usually to remove it and retest.
Order the C-Reactive Protein (CRP) test online from TestWell for $26.99 (plus a $6 per-order lab processing fee) — no doctor's visit, referral or insurance needed. A licensed physician authorizes the order, then you walk into any Quest or Labcorp patient service center near you for the draw (the lab locator on our site lists the closest ones by ZIP code), and results arrive in 2–4 business days.
The CPT code for a C-Reactive Protein (CRP) test is 86140. You can order it from TestWell for $26.99 — no doctor's visit or insurance required, with results in 2–4 business days.
The C-Reactive Protein (CRP) test is Quest Diagnostics test code 4420, Labcorp test number 120766 ("C-Reactive Protein, Cardiac"), BioReference code 0069-5 (CPT 86140). TestWell orders it under those codes for $26.99 at Quest, Labcorp or BioReference — no doctor's visit or insurance required, results in 2–4 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
Related guide
ESR vs CRP: What the Two Inflammation Tests Measure, How They Differ, and When to Order Each (Plus hs-CRP)
Related guide
BPC-157 and Bloodwork: What Labs Can (and Can't) Tell You
TestWell Price
$26.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Frequently ordered together
Customers who ordered C-Reactive Protein (CRP) also added these for a more complete health picture.
Not sure where to start?
C-Reactive Protein (CRP)
$26.99