Vitamin A Deficiency Test in New Hampshire
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. New Hampshire residents in New England can request the vitamin a deficiency test online and choose a convenient collection point.
- 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 New Hampshire
Order online, choose a certified collection site in New Hampshire, and review results through a secure portal. No referral is required, and orders are processed confidentially. With short distances between towns that keep most people within an easy drive of a draw site, 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 New Hampshire
- Vitamin A Deficiency Test in Nashua
- Vitamin A Deficiency Test in Manchester
- Vitamin A Deficiency Test in Portsmouth
- Vitamin A Deficiency Test in Dover
- Vitamin A Deficiency Test in Concord
- Vitamin A Deficiency Test in Rochester
- Vitamin A Deficiency Test in Keene
- Vitamin A Deficiency Test in Laconia
- Vitamin A Deficiency Test in Lebanon
- Vitamin A Deficiency Test in Claremont
- Vitamin A Deficiency Test in Somersworth
- Vitamin A Deficiency Test in Berlin
- Vitamin A Deficiency Test in Franklin
- Vitamin A Deficiency Test in South Hooksett
- Vitamin A Deficiency Test in Suncook
- Vitamin A Deficiency Test in Pinardville
- Vitamin A Deficiency Test in East Merrimack
- Vitamin A Deficiency Test in Tilton Northfield
- Vitamin A Deficiency Test in Hampton Beach
- Vitamin A Deficiency Test in North Conway
- Vitamin A Deficiency Test in Woodsville
- Vitamin A Deficiency Test in West Swanzey
- Vitamin A Deficiency Test in Contoocook
- Vitamin A Deficiency Test in North Haverhill
All testing in New Hampshire → Full Vitamin A Deficiency Test guide →