Hospital
$150+
Other Labs
$49
TestWell
$44.99
Vitamin A (retinol) is a fat-soluble vitamin crucial for vision (especially night vision), immune function, skin health, and cell growth. Both deficiency and excess can cause health problems. Deficiency is more common in developing countries but can occur in people with fat malabsorption conditions, liver disease, or restrictive diets.
Sample Type
Blood draw
Fasting
Required
Results In
3–5 business days
Performed By
Quest
1 biomarker tested
Your Vitamin A (Retinol) results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–5 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
Fasting for 8 hours is recommended.
TestWell Price
$44.99
No insurance needed · HIPAA compliant
Frequently ordered together
Customers who ordered Vitamin A (Retinol) also added these for a more complete health picture.
Complete blood count with white blood cell breakdown — the gold standard for overall blood health screening.
$21.99
The primary screening test for thyroid function — detects both overactive and underactive thyroid.
$26.99
Measures your body's iron stores — the most sensitive early indicator of iron deficiency.
$24.99
Vitamin A (Retinol)
$44.99