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South · Vitamin A Deficiency Test

Vitamin A Deficiency Test in Virginia

This page explains the vitamin a deficiency test, what it measures, and how to order it. This blood test measures vitamin A levels to help evaluate for a deficiency. It is typically ordered when symptoms suggest low vitamin A or when a person has risk factors.

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

Lab requirements in Virginia

Here is what you need before ordering and completing the Vitamin A Deficiency Test in VA. 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
Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
Preparation
Preparation instructions can vary, so follow the specific directions provided by the collection lab. Typically, no special preparation is needed, but the lab will confirm any requirements.
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 vitamin A deficiency test is a blood test that measures the amount of retinol, the primary form of vitamin A, in the blood. It helps assess whether vitamin A stores are adequate for normal vision, immune function, and skin health.

What it measures

  • Retinol — reflects circulating vitamin A levels
  • Retinol-binding protein — indicates vitamin A transport capacity
  • Total vitamin A — may include other retinoid forms

What the test involves

A healthcare professional collects a blood sample, usually from a vein in your arm, using a standard blood draw. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order this test if you have symptoms such as night blindness, dry eyes, or frequent infections that could indicate low vitamin A. It may also be ordered for individuals with conditions that affect nutrient absorption or those with limited dietary intake.

Preparation

Preparation instructions can vary, so follow the specific directions provided by the collection lab. Typically, no special preparation is needed, but the lab will confirm any requirements.

How results are reported

Results are reported as a numerical value that your clinician interprets. Reference ranges can differ between laboratories, so the lab's own range should be used for context.

Before you go

  • Whether fasting is required before the blood draw
  • Any medications or supplements that might affect results
  • The expected turnaround time for results

Cities

Vitamin A Deficiency Test in Virginia communities

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

Virginia Beach1,500,764Vitamin A Deficiency TestRichmond1,008,069Vitamin A Deficiency TestChesapeake247,172Vitamin A Deficiency TestNorfolk238,556Vitamin A Deficiency TestArlington235,764Vitamin A Deficiency TestRoanoke215,781Vitamin A Deficiency TestNewport News185,069Vitamin A Deficiency TestAlexandria158,185Vitamin A Deficiency TestFredericksburg155,414Vitamin A Deficiency TestHampton136,748Vitamin A Deficiency TestLynchburg120,877Vitamin A Deficiency TestCharlottesville102,164Vitamin A Deficiency TestPortsmouth97,454Vitamin A Deficiency TestBlacksburg94,398Vitamin A Deficiency TestSuffolk93,268Vitamin A Deficiency TestWilliamsburg83,021Vitamin A Deficiency TestHarrisonburg74,901Vitamin A Deficiency TestWinchester74,593Vitamin A Deficiency TestDale City73,716Vitamin A Deficiency TestCentreville73,064Vitamin A Deficiency TestReston62,453Vitamin A Deficiency TestMcLean49,310Vitamin A Deficiency TestLeesburg48,223Vitamin A Deficiency TestTuckahoe48,187Vitamin A Deficiency TestAshburn44,950Vitamin A Deficiency TestLake Ridge44,697Vitamin A Deficiency TestBurke44,191Vitamin A Deficiency TestWoodbridge42,734Vitamin A Deficiency TestManassas42,596Vitamin A Deficiency TestDanville42,556Vitamin A Deficiency TestLinton Hall42,089Vitamin A Deficiency TestAnnandale41,869Vitamin A Deficiency TestMechanicsville37,767Vitamin A Deficiency TestOakton36,675Vitamin A Deficiency TestFair Oaks34,437Vitamin A Deficiency TestSouth Riding33,828Vitamin A Deficiency TestPetersburg33,229Vitamin A Deficiency TestSpringfield31,769Vitamin A Deficiency TestSterling31,202Vitamin A Deficiency TestWest Falls Church31,023Vitamin A Deficiency TestShort Pump27,332Vitamin A Deficiency TestTysons26,171Vitamin A Deficiency TestStaunton25,358Vitamin A Deficiency TestSalem25,335Vitamin A Deficiency TestCave Spring25,248Vitamin A Deficiency TestHerndon24,574Vitamin A Deficiency TestBailey's Crossroads24,501Vitamin A Deficiency TestFairfax23,980Vitamin A Deficiency TestChantilly23,564Vitamin A Deficiency TestWest Springfield23,562Vitamin A Deficiency TestChristiansburg23,174Vitamin A Deficiency TestHopewell23,020Vitamin A Deficiency TestWoodlawn22,590Vitamin A Deficiency TestChester22,512Vitamin A Deficiency TestWaynesboro22,149Vitamin A Deficiency TestCherry Hill22,118Vitamin A Deficiency TestBrambleton21,986Vitamin A Deficiency TestMontclair21,961Vitamin A Deficiency TestRose Hill21,466Vitamin A Deficiency TestLorton21,394Vitamin A Deficiency Test