Vitamin A Deficiency Test in North Carolina
This page explains the vitamin a deficiency test, what it measures, and how to arrange it. A vitamin A deficiency test measures the amount of vitamin A in your blood. It is ordered when a person has symptoms or risk factors that suggest low vitamin A, such as poor night vision, dry eyes, or difficulty seeing in dim light. It can also be used to monitor people with conditions that affect how the body absorbs fat and fat-soluble vitamins. Across North Carolina, part of South, the vitamin a deficiency test can be ordered directly and collected at a certified site — no referral required.
- Sample type
- blood
- Category
- Vitamin & Mineral
- Turnaround
- 1-3 business days
- Price
- $116
- Referral
- Not required
A vitamin A deficiency test measures the amount of vitamin A in your blood. It is ordered when a person has symptoms or risk factors that suggest low vitamin A, such as poor night vision, dry eyes, or difficulty seeing in dim light. It can also be used to monitor people with conditions that affect how the body absorbs fat and fat-soluble vitamins.
What it measures
- Retinol — The main form of vitamin A circulating in the blood; this is the most common marker measured.
- Retinyl esters — A storage form of vitamin A; high levels may suggest too much vitamin A.
- Beta-carotene — A plant-based precursor that the body converts into vitamin A; sometimes measured to assess intake.
- Retinol-binding protein — A protein that carries vitamin A in the blood; low levels can occur with poor nutrition or liver problems.
Who it is for
A clinician may order this test for people with symptoms of vitamin A deficiency, such as night blindness or dry eyes, or for those with conditions that cause poor absorption of nutrients, including certain digestive disorders or a history of weight-loss surgery.
Preparation
No fasting is usually required for a vitamin A blood test. Tell your clinician about any supplements or medications you take, because they can affect the result.
Results and what they mean
Results are reported as a level of vitamin A in your blood, often in micrograms per deciliter. Your clinician interprets the result along with your symptoms, diet, and medical history. This information is general and not medical advice; discuss your results with a qualified healthcare professional.
Requesting the Vitamin A Deficiency Test in North Carolina
Order online, choose a certified collection site in North Carolina, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across South is expanding, so confirming a site ahead of time is worthwhile.
Frequently asked questions
Do I need to stop taking vitamin supplements before this test?
Ask your clinician. Some supplements can raise vitamin A levels, so they may want you to pause them before testing.
Is this test done fasting?
Fasting is not typically required, but follow any instructions your clinician gives you.
How long does it take to get results?
Results are usually available within 1 to 3 business days after the blood sample is collected.
Can I test myself at home?
No, this test requires a blood draw and laboratory analysis. It is ordered and interpreted by a healthcare professional.
Vitamin A Deficiency Test by city in North Carolina
- Vitamin A Deficiency Test in Charlotte
- Vitamin A Deficiency Test in Raleigh
- Vitamin A Deficiency Test in Winston-Salem
- Vitamin A Deficiency Test in Durham
- Vitamin A Deficiency Test in Greensboro
- Vitamin A Deficiency Test in Fayetteville
- Vitamin A Deficiency Test in Asheville
- Vitamin A Deficiency Test in Concord
- Vitamin A Deficiency Test in Wilmington
- Vitamin A Deficiency Test in Hickory
- Vitamin A Deficiency Test in Gastonia
- Vitamin A Deficiency Test in High Point
- Vitamin A Deficiency Test in Cary
- Vitamin A Deficiency Test in Burlington
- Vitamin A Deficiency Test in Greenville
- Vitamin A Deficiency Test in Jacksonville
- Vitamin A Deficiency Test in Rocky Mount
- Vitamin A Deficiency Test in Chapel Hill
- Vitamin A Deficiency Test in Huntersville
- Vitamin A Deficiency Test in Apex
- Vitamin A Deficiency Test in Kannapolis
- Vitamin A Deficiency Test in Mooresville
- Vitamin A Deficiency Test in Wilson
- Vitamin A Deficiency Test in Wake Forest
- Vitamin A Deficiency Test in Holly Springs
- Vitamin A Deficiency Test in Indian Trail
- Vitamin A Deficiency Test in Salisbury
- Vitamin A Deficiency Test in Monroe
- Vitamin A Deficiency Test in Goldsboro
- Vitamin A Deficiency Test in Fuquay-Varina
- Vitamin A Deficiency Test in New Bern
- Vitamin A Deficiency Test in Cornelius
- Vitamin A Deficiency Test in Garner
- Vitamin A Deficiency Test in Sanford
- Vitamin A Deficiency Test in Matthews
- Vitamin A Deficiency Test in Morrisville
- Vitamin A Deficiency Test in Statesville
- Vitamin A Deficiency Test in Thomasville
- Vitamin A Deficiency Test in Asheboro
- Vitamin A Deficiency Test in Kernersville
All testing in North Carolina → Full Vitamin A Deficiency Test guide →