Lab tests
Spinal fluid beta-amyloid 42/40 ratio test for memory loss cost in California
Spinal fluid beta-amyloid 42/40 ratio test for memory loss is a lab test. Many labs sell tests directly to the public for a flat cash price, often far below hospital prices.
Typical cash price
In California
From 23 hospital and 0 clinic prices in California.
Nationwide typical: $560 (most listed prices $220–$1,638).
Cheapest in California
- El Camino Hospital (Los Gatos)Spinal fluid beta-amyloid 42/40 ratio test for memory lossFacility fee only$190
Doctor fees are billed separately.
Source: El Camino Hospital (Los Gatos) price file · checked Oct 2026 - Valley Presbyterian HospitalSpinal fluid beta-amyloid 42/40 ratio test for memory lossFacility fee only$261
Doctor fees are billed separately.
Source: Valley Presbyterian Hospital price file · checked Oct 2026 - Banner Lassen Medical CenterSpinal fluid beta-amyloid 42/40 ratio test for memory lossFacility fee only$427
Doctor fees are billed separately.
Source: Banner Lassen Medical Center price file · checked Oct 2026 - $510
Doctor fees are billed separately. +19 more in this system at the same published price. Location not independently confirmed.
Source: Antioch Medical Center price file · checked Oct 2026
See all prices for Spinal fluid beta-amyloid 42/40 ratio test for memory loss
Common questions
Do I need a doctor's order?
In most states, direct-to-consumer labs can sell many tests without a separate doctor visit. Some states and some tests still require an order.
Is the blood draw included?
Usually yes for lab stores and booking sites. Hospitals sometimes bill the draw (venipuncture) separately.
Why are prices so different?
Each hospital and clinic sets its own cash price. Hospitals publish prices because federal rules require it; clinics and booking sites set prices to compete. The same service can cost several times more at one place than at another nearby.
Can I pay cash if I have insurance?
Yes. You can choose to self-pay. A cash price is often lower than what you would pay before meeting your deductible. Cash payments may not count toward your deductible, so check with your plan. Our cash vs. insurance tool can help you decide.
What is a Good Faith Estimate?
If you are uninsured or paying cash, providers must give you a Good Faith Estimate of the cost on request. If your final bill is $400 or more above the estimate, you can dispute it.