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New England · Carnitine Level Testing – Deficiency Test

Carnitine Level Testing – Deficiency Test in Maine

Below is a plain-language overview of the carnitine level testing – deficiency test. Carnitine level testing measures the amount of carnitine in the body to help evaluate certain muscle disorders and metabolic concerns. Carnitine is needed for the body to use specific fats for energy.

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

Lab requirements in Maine

Here is what you need before ordering and completing the Carnitine Level Testing – Deficiency Test in ME. 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
Preparation can vary, so follow the collection lab's instructions carefully. This may include fasting for a period before the sample is taken or avoiding certain foods or supplements.
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

This test measures carnitine levels, typically in the blood, to check for a deficiency. Carnitine helps transport certain fats into cells so they can be used for energy. A deficiency can interfere with normal muscle function and fat metabolism.

What it measures

  • Total carnitine — reflects the overall amount of carnitine in the sample
  • Free carnitine — reflects the unbound form available for fat transport
  • Acylcarnitine — reflects carnitine bound to fatty acids
  • Acylcarnitine-to-free carnitine ratio — helps indicate how well carnitine is being used

What the test involves

A healthcare professional collects a blood sample, usually from a vein in the arm, using a standard blood draw. In some cases, a urine sample may also be collected depending on the lab's instructions.

Why it is often ordered

A clinician may order this test when a person has unexplained muscle weakness, fatigue, or other symptoms that could relate to how the body processes fats. It can also be used to monitor known metabolic conditions or the effects of certain treatments.

Preparation

Preparation can vary, so follow the collection lab's instructions carefully. This may include fasting for a period before the sample is taken or avoiding certain foods or supplements.

How results are reported

Results are reported as a numerical value for carnitine, often alongside a reference range. Reference ranges differ between laboratories, so results should always be interpreted in the context of the lab that performed the test.

Before you go

  • Whether fasting or other preparation is required before the sample collection
  • What type of sample will be collected, such as blood or urine
  • How and when results will be shared with you or your healthcare provider

Cities

Carnitine Level Testing – Deficiency Test in Maine communities

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

Portland220,807Carnitine Level Testing – Deficiency TestLewiston36,615Carnitine Level Testing – Deficiency TestBangor31,920Carnitine Level Testing – Deficiency TestSouth Portland26,428Carnitine Level Testing – Deficiency TestAuburn23,790Carnitine Level Testing – Deficiency TestBiddeford22,331Carnitine Level Testing – Deficiency TestSanford21,812Carnitine Level Testing – Deficiency TestSaco20,203Carnitine Level Testing – Deficiency TestWestbrook20,074Carnitine Level Testing – Deficiency TestAugusta18,895Carnitine Level Testing – Deficiency TestWaterville15,872Carnitine Level Testing – Deficiency TestBrewer9,606Carnitine Level Testing – Deficiency TestPresque Isle8,859Carnitine Level Testing – Deficiency TestBath8,718Carnitine Level Testing – Deficiency TestEllsworth8,340Carnitine Level Testing – Deficiency TestCaribou7,448Carnitine Level Testing – Deficiency TestOld Town7,415Carnitine Level Testing – Deficiency TestRockland6,977Carnitine Level Testing – Deficiency TestBelfast6,890Carnitine Level Testing – Deficiency TestGardiner5,944Carnitine Level Testing – Deficiency TestNorth Windham5,395Carnitine Level Testing – Deficiency TestLisbon Falls4,213Carnitine Level Testing – Deficiency TestYork Harbor3,819Carnitine Level Testing – Deficiency TestSouth Berwick3,596Carnitine Level Testing – Deficiency TestLisbon3,456Carnitine Level Testing – Deficiency TestSouth Eliot3,342Carnitine Level Testing – Deficiency TestCalais3,010Carnitine Level Testing – Deficiency TestLake Arrowhead3,007Carnitine Level Testing – Deficiency TestCumberland Center2,956Carnitine Level Testing – Deficiency TestHallowell2,542Carnitine Level Testing – Deficiency TestCape Neddick2,485Carnitine Level Testing – Deficiency TestSouth Paris2,169Carnitine Level Testing – Deficiency TestDunstan1,852Carnitine Level Testing – Deficiency TestFalmouth Foreside1,811Carnitine Level Testing – Deficiency TestVeazie1,771Carnitine Level Testing – Deficiency TestSteep Falls1,677Carnitine Level Testing – Deficiency TestEastport1,226Carnitine Level Testing – Deficiency TestWest Kennebunk1,119Carnitine Level Testing – Deficiency TestCornish1,117Carnitine Level Testing – Deficiency TestKittery Point1,017Carnitine Level Testing – Deficiency TestChisholm1,007Carnitine Level Testing – Deficiency Test