Vitamin A Deficiency Test in Illinois
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 Illinois, part of Midwest, 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 Illinois
Order online, choose a certified collection site in Illinois, and review results through a secure portal. No referral is required, and orders are processed confidentially. With a wide spread of cities and towns where trips are often grouped together, it pays to schedule your collection in advance.
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 Illinois
- Vitamin A Deficiency Test in Chicago
- Vitamin A Deficiency Test in Rockford
- Vitamin A Deficiency Test in Round Lake Beach
- Vitamin A Deficiency Test in Peoria
- Vitamin A Deficiency Test in Aurora
- Vitamin A Deficiency Test in Springfield
- Vitamin A Deficiency Test in Champaign
- Vitamin A Deficiency Test in Joliet
- Vitamin A Deficiency Test in Naperville
- Vitamin A Deficiency Test in Bloomington
- Vitamin A Deficiency Test in Elgin
- Vitamin A Deficiency Test in Waukegan
- Vitamin A Deficiency Test in Decatur
- Vitamin A Deficiency Test in Cicero
- Vitamin A Deficiency Test in Alton
- Vitamin A Deficiency Test in Kankakee
- Vitamin A Deficiency Test in Evanston
- Vitamin A Deficiency Test in Schaumburg
- Vitamin A Deficiency Test in Arlington Heights
- Vitamin A Deficiency Test in Bolingbrook
- Vitamin A Deficiency Test in Palatine
- Vitamin A Deficiency Test in Skokie
- Vitamin A Deficiency Test in DeKalb
- Vitamin A Deficiency Test in Carbondale
- Vitamin A Deficiency Test in Des Plaines
- Vitamin A Deficiency Test in Orland Park
- Vitamin A Deficiency Test in Oak Lawn
- Vitamin A Deficiency Test in Berwyn
- Vitamin A Deficiency Test in Mount Prospect
- Vitamin A Deficiency Test in Tinley Park
- Vitamin A Deficiency Test in Oak Park
- Vitamin A Deficiency Test in Wheaton
- Vitamin A Deficiency Test in Normal
- Vitamin A Deficiency Test in Hoffman Estates
- Vitamin A Deficiency Test in Downers Grove
- Vitamin A Deficiency Test in Glenview
- Vitamin A Deficiency Test in Elmhurst
- Vitamin A Deficiency Test in Lombard
- Vitamin A Deficiency Test in Plainfield
- Vitamin A Deficiency Test in Buffalo Grove
All testing in Illinois → Full Vitamin A Deficiency Test guide →