Lab test requirements · preparation, ID, referral, and timing United States · 15,280 communities
LabRequirements Know what your test requires

Midwest · Canavan Disease Carrier Test – Ashkenazi

Canavan Disease Carrier Test – Ashkenazi in Michigan

Below is a plain-language overview of the canavan disease carrier test – ashkenazi. This test checks whether a person carries gene changes linked to Canavan disease, a rare inherited condition affecting the brain.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Michigan

Here is what you need before ordering and completing the Canavan Disease Carrier Test – Ashkenazi in MI. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Fasting is required for this test — follow the collection lab's instructions.
Preparation
No special preparation is usually needed, but you should follow the instructions given by the collection site or laboratory. If you have questions about fasting or medications, ask the lab…
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

The Canavan disease carrier test is a genetic blood test that looks for four specific changes in the ASPA gene: E285A, Y231X, 433-2A>G, and A305E. It can show if a person carries one copy of a change, which usually causes no symptoms, or if a person has two copies, which is associated with the disease. This test is often offered to people with Ashkenazi Jewish ancestry because these changes are more common in that group.

What it measures

  • E285A — one of the four ASPA gene changes linked to Canavan disease
  • Y231X — one of the four ASPA gene changes linked to Canavan disease
  • 433-2A>G — one of the four ASPA gene changes linked to Canavan disease
  • A305E — one of the four ASPA gene changes linked to Canavan disease

What the test involves

A small sample of blood is collected, usually from a vein in the arm, during a standard blood draw. The sample is then sent to a laboratory for genetic analysis.

Why it is often ordered

A clinician may order this test to find out if a person carries a gene change that could be passed on to children. It is often considered when there is a family history of Canavan disease or when someone wants information for family planning.

Preparation

No special preparation is usually needed, but you should follow the instructions given by the collection site or laboratory. If you have questions about fasting or medications, ask the lab before your appointment.

How results are reported

Results are reported as positive or negative for each of the four gene changes, and a genetic counselor can help explain what they mean. Reference ranges and reporting methods can vary by laboratory, so always discuss your results with your healthcare provider.

Before you go

  • Whether any special preparation is needed before the blood draw
  • How long results typically take at that laboratory
  • Whether genetic counseling is available to help interpret results

Cities

Canavan Disease Carrier Test – Ashkenazi in Michigan communities

Choose your city for local context and to order this test.

Detroit3,522,856Canavan Disease Carrier Test – AshkenaziGrand Rapids604,311Canavan Disease Carrier Test – AshkenaziAnn Arbor327,814Canavan Disease Carrier Test – AshkenaziLansing312,829Canavan Disease Carrier Test – AshkenaziFlint286,324Canavan Disease Carrier Test – AshkenaziKalamazoo212,033Canavan Disease Carrier Test – AshkenaziMuskegon164,136Canavan Disease Carrier Test – AshkenaziWarren138,996Canavan Disease Carrier Test – AshkenaziSterling Heights134,062Canavan Disease Carrier Test – AshkenaziSouth Lyon128,071Canavan Disease Carrier Test – AshkenaziSaginaw118,845Canavan Disease Carrier Test – AshkenaziDearborn107,985Canavan Disease Carrier Test – AshkenaziHolland100,202Canavan Disease Carrier Test – AshkenaziLivonia95,294Canavan Disease Carrier Test – AshkenaziJackson87,230Canavan Disease Carrier Test – AshkenaziTroy86,912Canavan Disease Carrier Test – AshkenaziPort Huron86,440Canavan Disease Carrier Test – AshkenaziWestland84,961Canavan Disease Carrier Test – AshkenaziFarmington Hills83,749Canavan Disease Carrier Test – AshkenaziWyoming76,625Canavan Disease Carrier Test – AshkenaziSouthfield76,196Canavan Disease Carrier Test – AshkenaziRochester Hills75,990Canavan Disease Carrier Test – AshkenaziBattle Creek75,608Canavan Disease Carrier Test – AshkenaziBay City67,917Canavan Disease Carrier Test – AshkenaziNovi65,369Canavan Disease Carrier Test – AshkenaziTaylor63,071Canavan Disease Carrier Test – AshkenaziDearborn Heights62,334Canavan Disease Carrier Test – AshkenaziPontiac61,498Canavan Disease Carrier Test – AshkenaziSt. Clair Shores59,046Canavan Disease Carrier Test – AshkenaziRoyal Oak58,368Canavan Disease Carrier Test – AshkenaziKentwood53,884Canavan Disease Carrier Test – AshkenaziPortage48,767Canavan Disease Carrier Test – AshkenaziRoseville47,692Canavan Disease Carrier Test – AshkenaziEast Lansing47,427Canavan Disease Carrier Test – AshkenaziMidland42,425Canavan Disease Carrier Test – AshkenaziLincoln Park39,741Canavan Disease Carrier Test – AshkenaziEastpointe34,148Canavan Disease Carrier Test – AshkenaziSouthgate29,990Canavan Disease Carrier Test – AshkenaziOak Park29,677Canavan Disease Carrier Test – AshkenaziBurton29,532Canavan Disease Carrier Test – AshkenaziMadison Heights28,719Canavan Disease Carrier Test – AshkenaziAllen Park28,431Canavan Disease Carrier Test – AshkenaziForest Hills28,327Canavan Disease Carrier Test – AshkenaziHamtramck27,548Canavan Disease Carrier Test – AshkenaziGarden City27,268Canavan Disease Carrier Test – AshkenaziInkster25,849Canavan Disease Carrier Test – AshkenaziHolt25,755Canavan Disease Carrier Test – AshkenaziOkemos25,179Canavan Disease Carrier Test – AshkenaziWalker25,149Canavan Disease Carrier Test – AshkenaziNorton Shores25,040Canavan Disease Carrier Test – AshkenaziWyandotte24,992Canavan Disease Carrier Test – AshkenaziRomulus24,977Canavan Disease Carrier Test – AshkenaziAuburn Hills24,202Canavan Disease Carrier Test – AshkenaziAllendale23,999Canavan Disease Carrier Test – AshkenaziWaverly23,328Canavan Disease Carrier Test – AshkenaziMount Pleasant21,880Canavan Disease Carrier Test – AshkenaziBirmingham21,728Canavan Disease Carrier Test – AshkenaziAdrian20,674Canavan Disease Carrier Test – AshkenaziMarquette20,561Canavan Disease Carrier Test – AshkenaziYpsilanti20,448Canavan Disease Carrier Test – Ashkenazi