Current promotion
CA 125, CA 19-9, CA 15-3 & CA 27.29 Tests: Order Online
Order single tumor marker tests online when you only need to track one number.
Affiliate disclosure: we earn a commission when you purchase lab tests through links on this site, at no extra cost to you. Learn more
With the 20% promotion: CA 15-3 $24.48, CA 125 $29.56, CA 27.29 $32.35, CA 19-9 $36.76 (pricing at time of writing).
At a glance
CA 125, CA 19-9, CA 15-3, and CA 27.29 are individual blood tests that each measure one tumor marker, a protein associated with certain cancers. They suit adults whose doctor has pointed to one specific marker worth tracking, without paying for a full multi-marker panel. Each can be ordered online and drawn at a local lab, with results to review with your physician.
Best suited for
- Adults whose doctor has suggested tracking one specific marker, such as CA 125 or CA 19-9
- People re-checking a previously flagged marker value between appointments, in coordination with their physician
- Budget-conscious shoppers who need a single marker test rather than a full multi-marker panel
- Anyone establishing a personal baseline for a marker their care team wants to follow over time
What's included
CA 125 Test
Marker associated with ovarian conditions; can also rise with endometriosis or fibroids
CA 19-9 Test
Marker associated with pancreatic and gastrointestinal cancers
CA 15-3 Test
Marker associated with breast cancer
CA 27.29 Test
Marker associated with breast cancer
Cancer Marker Panel Assessment: Most Common Panel
11-test, 65-biomarker option if you need broader coverage
The importance of testing
Each of these tests measures a single cancer antigen in blood. CA 125 is a marker associated with ovarian conditions, CA 19-9 with pancreatic and other gastrointestinal cancers, and CA 15-3 and CA 27.29 with breast cancer. Ordering only the marker you need keeps costs down and the report simple.
A single elevated value is not a medical conclusion. The partner's test descriptions are explicit that non-cancer conditions can raise these markers, CA 125, for instance, can climb with endometriosis, fibroids, or pelvic inflammation. Clinicians typically read marker results alongside imaging and other labs, and pay closest attention to how a value trends across repeat tests.
An individual test makes sense when you and your doctor already know which marker matters, for example, re-checking a previously flagged CA 19-9 between appointments. If you are starting from scratch, the same partner page offers tiered men's and women's marker panels, from a 3-test Basic bundle up to an 11-test assessment covering 65 biomarkers.
View any result as material for your next appointment: bring the number and its reference range to your physician, ask whether a repeat draw makes sense, and remember that marker testing does not replace guideline-recommended screening such as imaging studies.
Promo code
ULTACTSave 20% with code ULTACT, current promotion; confirm final pricing on the partner page.
Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.
Order NowFrequently asked questions
Which tumor marker test should I order?
The right test depends on which marker your doctor wants to follow: CA 125 is associated with ovarian conditions, CA 19-9 with pancreatic and gastrointestinal cancers, and CA 15-3 and CA 27.29 with breast cancer. If you are unsure, ask your physician which marker, if any, is worth tracking, or consider one of the multi-marker panels on the same page.
Can I order a CA 125 or CA 19-9 test without a doctor's visit?
Yes, the partner's online ordering system lets you purchase any of these individual tests directly and schedule your own lab draw, with no doctor's appointment needed to place the order. Results come with clear explanations you can bring to your physician.
Does an elevated tumor marker mean I have cancer?
No, an elevated marker is not a medical conclusion of any disease. Non-cancer conditions can raise these values; CA 125, for example, can rise with endometriosis, fibroids, or pelvic inflammation. Bring any out-of-range result to your doctor, who can interpret it alongside your history, imaging, and other labs.
Is individual tumor marker testing available in all US states?
No, direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. Most other US residents can order online and visit a nearby draw site.
How much does a single tumor marker test cost?
With the current 20% promotion, CA 15-3 is $24.48, CA 125 is $29.56, CA 27.29 is $32.35, and CA 19-9 is $36.76. These prices were accurate at the time of writing; apply code ULTACT and confirm final pricing on the partner page.
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