The short answer
Screens for infectious mononucleosis (mono) caused by the Epstein-Barr virus, measured from a standard blood draw. At TestWell it costs $84.99 plus a $6 lab fee, needs no fasting, and results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Labcorp.
TestWell Price
$84.99
+ $6 lab processing fee
The Monospot (heterophile antibody) test is a rapid screen for infectious mononucleosis, an illness caused by the Epstein-Barr virus (EBV). Mono commonly presents with extreme fatigue, sore throat, swollen lymph nodes, and fever — symptoms that overlap with strep throat and other infections. This test detects heterophile antibodies that appear during active EBV infection, helping to quickly confirm or rule out mono as the cause of symptoms.
STI and infectious disease testing identifies current or past infections that often present without obvious symptoms — preventing complications, transmission, and long-term sequelae.
Anyone with a new sexual partner, symptoms suggesting an STI, recent exposure, planning pregnancy, or seeking routine sexual health screening per CDC recommendations.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Performed At
Labcorp
1 biomarker tested
Your Mono Test (Mononucleosis) 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 1–3 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.
No fasting required. No special preparation needed.
A Mono Test (Mononucleosis) test costs $84.99 at TestWell — $90.99 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 $130.00 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) | $84.99 | $90.99 | Includes the one $6 lab processing fee, charged once per order |
| Hospital outpatient lab, self-pay (typical) | $130.00 | $130.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Labcorp test no. 006189. 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
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$84.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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Mono Test (Mononucleosis)
$84.99