Vitamin A Deficiency Test in Arizona
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 Arizona, part of Southwest, 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 Arizona
Order online, choose a certified collection site in Arizona, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Southwest is far-flung, 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 Arizona
- Vitamin A Deficiency Test in Phoenix
- Vitamin A Deficiency Test in Tucson
- Vitamin A Deficiency Test in Mesa
- Vitamin A Deficiency Test in Chandler
- Vitamin A Deficiency Test in Gilbert
- Vitamin A Deficiency Test in Avondale
- Vitamin A Deficiency Test in Glendale
- Vitamin A Deficiency Test in Scottsdale
- Vitamin A Deficiency Test in Peoria
- Vitamin A Deficiency Test in Tempe
- Vitamin A Deficiency Test in Surprise
- Vitamin A Deficiency Test in Yuma
- Vitamin A Deficiency Test in Prescott Valley
- Vitamin A Deficiency Test in San Tan Valley
- Vitamin A Deficiency Test in Goodyear
- Vitamin A Deficiency Test in Buckeye
- Vitamin A Deficiency Test in Flagstaff
- Vitamin A Deficiency Test in Casas Adobes
- Vitamin A Deficiency Test in Queen Creek
- Vitamin A Deficiency Test in Maricopa
- Vitamin A Deficiency Test in Lake Havasu City
- Vitamin A Deficiency Test in Casa Grande
- Vitamin A Deficiency Test in Marana
- Vitamin A Deficiency Test in Catalina Foothills
- Vitamin A Deficiency Test in Oro Valley
- Vitamin A Deficiency Test in Prescott
- Vitamin A Deficiency Test in Sierra Vista
- Vitamin A Deficiency Test in Bullhead City
- Vitamin A Deficiency Test in Apache Junction
- Vitamin A Deficiency Test in Sun City
- Vitamin A Deficiency Test in El Mirage
- Vitamin A Deficiency Test in San Luis
- Vitamin A Deficiency Test in Sahuarita
- Vitamin A Deficiency Test in Kingman
- Vitamin A Deficiency Test in Drexel Heights
- Vitamin A Deficiency Test in Fortuna Foothills
- Vitamin A Deficiency Test in Sun City West
- Vitamin A Deficiency Test in Florence
- Vitamin A Deficiency Test in Fountain Hills
- Vitamin A Deficiency Test in Anthem
All testing in Arizona → Full Vitamin A Deficiency Test guide →