Vitamin A Deficiency Test in Washington
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 Washington, part of Pacific, 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 Washington
Order online, choose a certified collection site in Washington, and review results through a secure portal. No referral is required, and orders are processed confidentially. Because the region is uneven, coastal metros, inland towns, and rural counties with very different access to testing — worth planning around when you book.
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 Washington
- Vitamin A Deficiency Test in Seattle
- Vitamin A Deficiency Test in Spokane
- Vitamin A Deficiency Test in Kennewick
- Vitamin A Deficiency Test in Bremerton
- Vitamin A Deficiency Test in Tacoma
- Vitamin A Deficiency Test in Olympia
- Vitamin A Deficiency Test in Vancouver
- Vitamin A Deficiency Test in Marysville
- Vitamin A Deficiency Test in Bellevue
- Vitamin A Deficiency Test in Kent
- Vitamin A Deficiency Test in Yakima
- Vitamin A Deficiency Test in Bellingham
- Vitamin A Deficiency Test in Everett
- Vitamin A Deficiency Test in Renton
- Vitamin A Deficiency Test in Spokane Valley
- Vitamin A Deficiency Test in Federal Way
- Vitamin A Deficiency Test in Kirkland
- Vitamin A Deficiency Test in Auburn
- Vitamin A Deficiency Test in Pasco
- Vitamin A Deficiency Test in Redmond
- Vitamin A Deficiency Test in Wenatchee
- Vitamin A Deficiency Test in Longview
- Vitamin A Deficiency Test in Mount Vernon
- Vitamin A Deficiency Test in South Hill
- Vitamin A Deficiency Test in Sammamish
- Vitamin A Deficiency Test in Lakewood
- Vitamin A Deficiency Test in Richland
- Vitamin A Deficiency Test in Shoreline
- Vitamin A Deficiency Test in Lacey
- Vitamin A Deficiency Test in Burien
- Vitamin A Deficiency Test in Bothell
- Vitamin A Deficiency Test in Edmonds
- Vitamin A Deficiency Test in Puyallup
- Vitamin A Deficiency Test in Issaquah
- Vitamin A Deficiency Test in Lynnwood
- Vitamin A Deficiency Test in Parkland
- Vitamin A Deficiency Test in Lake Stevens
- Vitamin A Deficiency Test in Spanaway
- Vitamin A Deficiency Test in University Place
- Vitamin A Deficiency Test in Walla Walla
All testing in Washington → Full Vitamin A Deficiency Test guide →