California
Vitamin B12 and Folate Test in California
This test measures both vitamin B12 and folic acid (folate) in a single blood sample. The two nutrients work together in red blood cell production and DNA synthesis, so they are often checked as a pair.
Order Folic Acid Lab Test - B12 Deficiency Test in California
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Folic Acid Lab Test - B12 Deficiency Test- Typical turnaround
- 1-3 business days
- Starting price
- From $118
- Results
- Confidential, online
Quick answer
The vitamin B12 and folic acid test measures the levels of both nutrients in the blood. B12 and folate are essential for making red blood cells and for DNA synthesis. Because a shortage of either can produce similar symptoms, they are commonly ordered together. The test uses a single blood sample, and a healthcare provider interprets the results with other findings.
What this test measures
Vitamin B12 and folate are separate nutrients, but they participate in overlapping biochemical pathways. Both are needed for red blood cells to mature normally and for DNA to be produced correctly. When either is low, red blood cells can become unusually large, a pattern known as macrocytic anemia.
The panel typically measures serum vitamin B12 and serum folate, and some laboratories add red blood cell folate, which reflects longer-term status. Methylmalonic acid and homocysteine may also be included because they can rise when B12 or folate is insufficient, even when standard levels look borderline.
Testing may be requested for fatigue, unexplained anemia, tingling or numbness, or a diet low in animal products. Folate matters especially before and during pregnancy. Results guide a healthcare provider toward further evaluation, such as identifying whether absorption or intake is the underlying issue.
Vitamin B12 and Folate Test in California cities
Acalanes Ridge, CA
Vitamin B12 and Folate Test in Acalanes Ridge.
Acton, CA
Vitamin B12 and Folate Test in Acton.
Adelanto, CA
Vitamin B12 and Folate Test in Adelanto.
Agoura Hills, CA
Vitamin B12 and Folate Test in Agoura Hills.
Agua Dulce, CA
Vitamin B12 and Folate Test in Agua Dulce.
Ahwahnee, CA
Vitamin B12 and Folate Test in Ahwahnee.
Airport, CA
Vitamin B12 and Folate Test in Airport.
Alameda, CA
Vitamin B12 and Folate Test in Alameda.
Alamo, CA
Vitamin B12 and Folate Test in Alamo.
Albany, CA
Vitamin B12 and Folate Test in Albany.
Alhambra, CA
Vitamin B12 and Folate Test in Alhambra.
Aliso Viejo, CA
Vitamin B12 and Folate Test in Aliso Viejo.
Allendale, CA
Vitamin B12 and Folate Test in Allendale.
Alondra Park, CA
Vitamin B12 and Folate Test in Alondra Park.
Alpine, CA
Vitamin B12 and Folate Test in Alpine.
Alta Sierra, CA
Vitamin B12 and Folate Test in Alta Sierra.
Altadena, CA
Vitamin B12 and Folate Test in Altadena.
Alturas, CA
Vitamin B12 and Folate Test in Alturas.
Alum Rock, CA
Vitamin B12 and Folate Test in Alum Rock.
Amador Pines, CA
Vitamin B12 and Folate Test in Amador Pines.
American Canyon, CA
Vitamin B12 and Folate Test in American Canyon.
Amesti, CA
Vitamin B12 and Folate Test in Amesti.
Anaheim, CA
Vitamin B12 and Folate Test in Anaheim.
Anderson, CA
Vitamin B12 and Folate Test in Anderson.
Angels, CA
Vitamin B12 and Folate Test in Angels.
Angwin, CA
Vitamin B12 and Folate Test in Angwin.
Antelope, CA
Vitamin B12 and Folate Test in Antelope.
Antioch, CA
Vitamin B12 and Folate Test in Antioch.
Anza, CA
Vitamin B12 and Folate Test in Anza.
Apple Valley, CA
Vitamin B12 and Folate Test in Apple Valley.
Frequently Asked Questions
Where can I get a vitamin b12 and folate test in California?
California has certified laboratories and independent diagnostic centers that offer this panel. Direct-access ordering lets you select a location that fits your schedule.
How much does a vitamin b12 and folate test cost in California?
Pricing varies by provider and location. Check the price shown at checkout, and contact the testing partner for a written estimate if needed.
Is at-home collection available in California?
For select panels, at-home kits can be shipped to California, collected at home, and mailed back for analysis.
How long do results take in California?
Most results are reported within 1-3 business days after collection.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
Reviewed by the LabOrdering Editorial Team
Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.