On your lab requisition: Quest “Lactate Dehydrogenase (LD)” (test code 593)
The short answer
Measures LDH enzyme levels — elevated in tissue damage, hemolytic anemia, liver disease, and some cancers, measured from a standard blood draw. At TestWell it costs $19.99 plus a $6 lab processing fee, needs no fasting, and results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp.
Hospital Lab
$120
cash pay
Other Labs
$35
+ lab fees
TestWell
$19.99
+ $6 lab processing fee
Lactate dehydrogenase (LDH) is an enzyme found in nearly all body tissues, including blood cells, heart, kidneys, lungs, liver, and muscles. When cells are damaged or destroyed, LDH is released into the bloodstream. Elevated LDH is a nonspecific marker that can indicate hemolytic anemia, liver disease, heart attack, muscle injury, some cancers (especially lymphoma), and severe infections. It is often used as a general indicator of tissue damage and to monitor treatment response in cancer patients. Because it is nonspecific, abnormal results are typically followed by more targeted testing.
General health testing provides a baseline snapshot of organ function, metabolism, and key biomarkers — useful for annual checkups, preventive care, and tracking changes over time.
Adults wanting a routine wellness baseline, anyone re-engaging with healthcare after a gap, and people tracking the impact of lifestyle or medication changes.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Performed At
Quest or Labcorp
Your LDH (Lactate Dehydrogenase) 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. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
No fasting required. Avoid strenuous exercise for 24 hours before the test.
An LDH (Lactate Dehydrogenase) test costs $19.99 at TestWell — $25.99 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 $120.00 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) | $19.99 | $25.99 | 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) | $120.00 | $120.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 593 · Labcorp test no. 001115 · BioReference code 0117-2. 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
Most LDH (Lactate Dehydrogenase) results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal.
Blood draw. Sample is collected at a Quest, Labcorp, or BioReference patient service center near you, or via at-home phlebotomy where available.
On TestWell, the LDH (Lactate Dehydrogenase) is $19.99. Quest Direct lists comparable tests at $35. Walk-in hospital labs typically bill $120 or more without insurance. Insurance is not required — pay one all-in price.
No fasting required for the LDH (Lactate Dehydrogenase). No fasting required. Avoid strenuous exercise for 24 hours before the test.
The LDH (Lactate Dehydrogenase) is available at Quest and Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you.
The CPT code for an LDH (Lactate Dehydrogenase) test is 83615. You can order it from TestWell for $19.99 — no doctor's visit or insurance required, with results in 1–3 business days.
The LDH (Lactate Dehydrogenase) test is Quest Diagnostics test code 593 ("Lactate Dehydrogenase (LD)"), Labcorp test number 001115, BioReference code 0117-2 (CPT 83615). TestWell orders it under those codes for $19.99 at Quest, Labcorp or BioReference — no doctor's visit or insurance required, results in 1–3 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$19.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Better value: the Comprehensive Anemia Workup
Save $103.93This test is part of the Comprehensive Anemia Workup — 8 tests · 23 biomarkers for $169.99, $103.93 less than à la carte.
$169.99$273.92
8 tests · 23 biomarkers
Frequently ordered together
Customers who ordered LDH (Lactate Dehydrogenase) also added these for a more complete health picture.
Not sure where to start?
LDH (Lactate Dehydrogenase)
$19.99