A woman washes fresh carrots in a sink, highlighting their importance as a source of vitamin A

Vitamin A Test

Discover your vitamin A levels with a vitamin A blood test.

Optimize your nutrition and overall well-being with our vitamin A blood test.

Vitamin A is a nutrient that’s vital for maintaining healthy vision, promoting healthy skin and supporting the immune system. It plays a role in cell growth, especially in the formation and maintenance of healthy teeth, bones, soft tissues and mucous membranes. Vitamin A is also important for reproductive health and maintenance of the heart, lungs, eyes and other organs.

Our trusted vitamin A test measures retinol, the active form of vitamin A in the body. A vitamin A deficiency may be due to inadequate vitamin A in your diet or a health condition that interferes with vitamin absorption. Symptoms may include dry eyes, difficulty seeing in low light settings at night, skin conditions, and a weakened immune system. This test can also identify too much vitamin A in the body.

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Vitamin A Test

$55

Test Details

Sample Type: Blood

Collection Method: In person at a Labcorp location

Age: 18+

Results: 5-10 days from when your sample arrives at our lab

HSA/FSA: Accepted

Test must be taken by purchaser

Preparation: Fast for 12 hours (no food or drink, except water). It is recommended to avoid alcohol intake for 24 hours prior to testing.

What's Tested

Vitamin A

The Vitamin A Test measures the amount of vitamin A (retinol) in your blood. This fat-soluble vitamin is essential for maintaining healthy vision, supporting cell growth, metabolism, immune function, and proper functioning of the heart, lungs, bones, and other organs. Low levels may lead to fatigue, vision problems, dry/scaly and/or itchy skin, and potentially increased risk of infections. Vitamin A is naturally found in foods like carrots, sweet potatoes, leafy green vegetables, and dairy products, making it important to include these in your diet.

Seeking preventative care?

Understanding your vitamin A level can help you fine-tune your diet for better overall health. Vitamin A is essential for supporting healthy vision, skin and immune function.

Understanding your vitamin A level can help you fine-tune your diet for better overall health. Vitamin A is essential for supporting healthy vision, skin and immune function. Testing your vitamin A level allows you to make informed dietary adjustments to make sure you’re meeting your daily vitamin A needs.

Identify a vitamin A deficiency

Certain groups of people are more likely than others to have trouble getting enough vitamin A: individuals with cystic fibrosis, Crohn’s disease, ulcerative colitis, celiac disease or individuals who have undergone bariatric surgery.

Vitamin A deficiency symptoms may include dry eyes, visual changes (particularly in low light or at night), and increased infections. If you are experiencing concerning symptoms such as frequent infections, you should contact your healthcare provider for next steps.

Curious about your vitamin A levels?

Vitamin A levels can fluctuate based on your diet, lifestyle and health changes.

Vitamin A levels can fluctuate based on your diet, lifestyle and health changes. Your body can’t make vitamin A on its own, so you must get it through the foods you eat.

Purchase Your Test

Simply purchase this test online. A healthcare provider will review and approve your test requests; no healthcare provider visit is required.

Provide Your Sample

Visit a Labcorp location near you for sample collection. Visits may be scheduled online.

Get Your Results

View your easy-to-read results online in your Labcorp Patient™ account, including Linked Accounts. For certain results that require prompt attention, you will also be contacted by phone or mail.

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FAQ

A vitamin A blood test helps assess your vitamin A level, which plays a key role in maintaining healthy vision, skin and immune function. Individuals with restrictive or limited diets or certain conditions that interfere with normal digestion such as cystic fibrosis, Crohn’s disease, ulcerative colitis, celiac disease or prior bariatric surgery can develop vitamin A malabsorption.

For those experiencing low vitamin A symptoms such as dry eyes, dry skin, difficulty seeing at night, and increased infections, testing can help you find out what your vitamin A levels are, to support your health.
The best way to prevent vitamin A deficiency and to improve vitamin A levels is by eating a well-balanced diet and incorporating foods high in vitamin A.

Recommendations based on the Dietary Guidelines for Americans include:

Eating a variety of vegetables, fruits, whole grains, fat-free or low-fat milk and milk products, and oils.
Eating a variety of protein foods, including seafood, lean meats and poultry, eggs, legumes (beans and peas), nuts, seeds, and soy products. Beef liver also contains high amounts of vitamin A.
Limiting foods and beverages higher in added sugars, saturated fat, and sodium.
Limiting alcoholic beverages.
If dietary changes are not sufficient, or if you have increased needs, a vitamin A supplement may be recommended by your healthcare provider. It’s important to consult with your provider before determining if supplementation is necessary, as too much vitamin A can also have negative health effects.
Your testing will be performed in a CLIA-certified clinical laboratory. Labcorp provides leading-edge medical laboratory tests and services through a national network of primary clinical laboratories and specialty testing laboratories. Our labs perform regular quality assurance testing to ensure our results are accurate.
Your results will be provided to you through our secure online portal to view or print. Results are also made available through a secure portal to the independent healthcare provider who placed your test order. If you are accessing your results through your Labcorp Patient™ account, all users linked to the account will have access to all OnDemand test results. Results may also be provided to a local, state, and/or federal health authority; for example, many states require the testing laboratory and physician to report test results for certain communicable diseases, such as COVID-19, to local or state health departments.

If you have questions or comments regarding the Labcorp Notice of Privacy Practices, or have a complaint about our use or disclosure of your PHI or our privacy practices, please contact: privacyofficer@labcorp.com, call us at (877) 234-4722 (877-23-HIPAA) and ask for the Labcorp HIPAA Privacy Officer, or send a written request to: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215. You also may file a complaint with the Secretary of the U.S. Department of Health and Human Services.
Visit the Labcorp OnDemand® website to browse and purchase laboratory tests and create your Labcorp Patient™ account to view your results. All Labcorp OnDemand testing requires an order from an authorized healthcare professional. For your convenience, Labcorp OnDemand has contracted with independent professional entities (collectively, Providers) to deliver healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home collection kit, collect your sample yourself. We’ll let you know when your results are ready and can be accessed through your Labcorp Patient™ account.

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Vitamin A Test

Discover your vitamin A levels with a vitamin A blood test.

Test Details