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Mid-Atlantic · Vitamin A Deficiency Test

Vitamin A Deficiency Test in Delaware

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 Delaware

Here is what you need before ordering and completing the Vitamin A Deficiency Test in DE. 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 Delaware communities

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

Dover125,931Vitamin A Deficiency TestWilmington70,926Vitamin A Deficiency TestNewark31,393Vitamin A Deficiency TestMiddletown23,001Vitamin A Deficiency TestBear21,625Vitamin A Deficiency TestGlasgow15,342Vitamin A Deficiency TestBrookside14,202Vitamin A Deficiency TestHockessin13,464Vitamin A Deficiency TestSmyrna12,619Vitamin A Deficiency TestPike Creek Valley11,718Vitamin A Deficiency TestMilford11,249Vitamin A Deficiency TestClaymont9,508Vitamin A Deficiency TestWilmington Manor8,212Vitamin A Deficiency TestNorth Star8,009Vitamin A Deficiency TestSeaford7,852Vitamin A Deficiency TestPike Creek7,398Vitamin A Deficiency TestGeorgetown7,079Vitamin A Deficiency TestEdgemoor6,681Vitamin A Deficiency TestMillsboro6,542Vitamin A Deficiency TestElsmere6,167Vitamin A Deficiency TestNew Castle5,482Vitamin A Deficiency TestHighland Acres3,910Vitamin A Deficiency TestLaurel3,886Vitamin A Deficiency TestClayton3,845Vitamin A Deficiency TestCamden3,786Vitamin A Deficiency TestRising Sun-Lebanon3,772Vitamin A Deficiency TestHarrington3,730Vitamin A Deficiency TestLewes3,257Vitamin A Deficiency TestMilton3,224Vitamin A Deficiency TestDover Base Housing3,135Vitamin A Deficiency TestLong Neck3,022Vitamin A Deficiency TestSelbyville2,806Vitamin A Deficiency TestGreenville2,763Vitamin A Deficiency TestTownsend2,671Vitamin A Deficiency TestOcean View2,556Vitamin A Deficiency TestBridgeville2,499Vitamin A Deficiency TestDelmar2,241Vitamin A Deficiency TestRiverview2,091Vitamin A Deficiency TestDelaware City1,885Vitamin A Deficiency TestWoodside East1,867Vitamin A Deficiency TestMillville1,790Vitamin A Deficiency TestKent Acres1,756Vitamin A Deficiency TestCheswold1,705Vitamin A Deficiency TestWyoming1,636Vitamin A Deficiency TestRodney Village1,472Vitamin A Deficiency TestGreenwood1,459Vitamin A Deficiency TestRehoboth Beach1,392Vitamin A Deficiency TestBellefonte1,294Vitamin A Deficiency TestNewport1,224Vitamin A Deficiency TestSt. Georges1,197Vitamin A Deficiency TestFelton1,144Vitamin A Deficiency TestFrankford1,088Vitamin A Deficiency TestDagsboro1,087Vitamin A Deficiency Test