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South · Vitamin B2 Test – Riboflavin Deficiency

Vitamin B2 Test – Riboflavin Deficiency in Arkansas

Vitamin B2 Test – Riboflavin Deficiency can be ordered without a referral from your own doctor, and this guide covers what to expect. A vitamin B2 test measures riboflavin levels in the body to help identify a deficiency. Riboflavin is a nutrient the body needs to turn food into energy.

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

Lab requirements in Arkansas

Here is what you need before ordering and completing the Vitamin B2 Test – Riboflavin Deficiency in AR. 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 instructions provided by the collection lab. Ask the lab whether fasting or avoiding certain foods or supplements is needed before the sample is taken.
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 checks the amount of vitamin B2, also called riboflavin, in a sample of blood or urine. It can help show whether a person's riboflavin level is lower than expected. The test is not a routine screening for most people and is usually ordered when a deficiency is suspected.

What it measures

  • Riboflavin (vitamin B2) level — reflects the amount of this vitamin present in the sample
  • Erythrocyte glutathione reductase activity — an enzyme test sometimes used to estimate riboflavin status
  • Urinary riboflavin — reflects recent riboflavin intake and excretion

What the test involves

The sample is usually collected with a standard blood draw from a vein in the arm. In some cases, a urine sample may be collected instead, depending on the lab and the reason for testing.

Why it is often ordered

A clinician may order this test when a person has symptoms that could be related to low riboflavin, such as cracks at the corners of the mouth, a sore tongue, or certain skin and eye changes. It may also be ordered for people who have trouble absorbing nutrients or who follow a limited diet.

Preparation

Preparation can vary, so follow the instructions provided by the collection lab. Ask the lab whether fasting or avoiding certain foods or supplements is needed before the sample is taken.

How results are reported

Results are reported as a measured level of riboflavin or a related marker, and the lab report will include its own reference range. Reference ranges differ from lab to lab, so a result should always be interpreted using the range provided by the testing laboratory.

Before you go

  • Whether fasting or avoiding certain foods or supplements is required before collection
  • Whether a blood sample or a urine sample will be collected for this test
  • How and when results will be shared with you and the ordering clinician

Cities

Vitamin B2 Test – Riboflavin Deficiency in Arkansas communities

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

Little Rock457,379Vitamin B2 Test – Riboflavin DeficiencyFayetteville381,636Vitamin B2 Test – Riboflavin DeficiencyFort Smith127,699Vitamin B2 Test – Riboflavin DeficiencySpringdale85,887Vitamin B2 Test – Riboflavin DeficiencyJonesboro77,520Vitamin B2 Test – Riboflavin DeficiencyConway70,555Vitamin B2 Test – Riboflavin DeficiencyRogers68,340Vitamin B2 Test – Riboflavin DeficiencyNorth Little Rock64,444Vitamin B2 Test – Riboflavin DeficiencyBentonville52,565Vitamin B2 Test – Riboflavin DeficiencyPine Bluff41,964Vitamin B2 Test – Riboflavin DeficiencyHot Springs38,050Vitamin B2 Test – Riboflavin DeficiencyBenton34,746Vitamin B2 Test – Riboflavin DeficiencySherwood32,544Vitamin B2 Test – Riboflavin DeficiencyBella Vista29,818Vitamin B2 Test – Riboflavin DeficiencyTexarkana29,492Vitamin B2 Test – Riboflavin DeficiencyJacksonville29,385Vitamin B2 Test – Riboflavin DeficiencyParagould29,327Vitamin B2 Test – Riboflavin DeficiencyRussellville29,057Vitamin B2 Test – Riboflavin DeficiencyCabot26,411Vitamin B2 Test – Riboflavin DeficiencyWest Memphis24,666Vitamin B2 Test – Riboflavin DeficiencyVan Buren23,213Vitamin B2 Test – Riboflavin DeficiencySearcy23,074Vitamin B2 Test – Riboflavin DeficiencyBryant20,399Vitamin B2 Test – Riboflavin DeficiencyMaumelle19,070Vitamin B2 Test – Riboflavin DeficiencyEl Dorado17,800Vitamin B2 Test – Riboflavin DeficiencyCenterton17,455Vitamin B2 Test – Riboflavin DeficiencySiloam Springs16,944Vitamin B2 Test – Riboflavin DeficiencyHot Springs Village15,970Vitamin B2 Test – Riboflavin DeficiencyMarion13,624Vitamin B2 Test – Riboflavin DeficiencyBlytheville13,559Vitamin B2 Test – Riboflavin DeficiencyForrest City13,372Vitamin B2 Test – Riboflavin DeficiencyHarrison13,081Vitamin B2 Test – Riboflavin DeficiencyMountain Home12,722Vitamin B2 Test – Riboflavin DeficiencyMagnolia11,205Vitamin B2 Test – Riboflavin DeficiencyBatesville11,117Vitamin B2 Test – Riboflavin DeficiencyCamden10,644Vitamin B2 Test – Riboflavin DeficiencyMalvern10,626Vitamin B2 Test – Riboflavin DeficiencyArkadelphia10,332Vitamin B2 Test – Riboflavin DeficiencyHelena-West Helena9,707Vitamin B2 Test – Riboflavin DeficiencyLowell9,630Vitamin B2 Test – Riboflavin DeficiencyGreenwood9,498Vitamin B2 Test – Riboflavin DeficiencyClarksville9,444Vitamin B2 Test – Riboflavin DeficiencyHope9,010Vitamin B2 Test – Riboflavin DeficiencyMonticello8,567Vitamin B2 Test – Riboflavin DeficiencyStuttgart8,363Vitamin B2 Test – Riboflavin DeficiencyWynne8,352Vitamin B2 Test – Riboflavin DeficiencyBeebe8,343Vitamin B2 Test – Riboflavin DeficiencyNewport7,829Vitamin B2 Test – Riboflavin DeficiencyFarmington7,601Vitamin B2 Test – Riboflavin DeficiencyTrumann7,416Vitamin B2 Test – Riboflavin DeficiencyPocahontas7,269Vitamin B2 Test – Riboflavin DeficiencyOsceola7,016Vitamin B2 Test – Riboflavin DeficiencyHeber Springs7,015Vitamin B2 Test – Riboflavin DeficiencyMorrilton6,948Vitamin B2 Test – Riboflavin DeficiencyPrairie Grove6,908Vitamin B2 Test – Riboflavin DeficiencyPea Ridge6,491Vitamin B2 Test – Riboflavin DeficiencyEast End6,432Vitamin B2 Test – Riboflavin DeficiencyDe Queen6,192Vitamin B2 Test – Riboflavin DeficiencyWard5,943Vitamin B2 Test – Riboflavin DeficiencyAlma5,806Vitamin B2 Test – Riboflavin Deficiency