Vitamin A (Retinol)

What this laboratory test evaluates

Vitamin A (Retinol) Test
This test is crucial for checking Vitamin A levels in your body, which is essential for good vision, growth, and cell functions. High levels of Vitamin A can occur in cases like renal failure but usually don't lead to toxicity. However, they can be linked to bone fractures. On the other hand, low Vitamin A levels might indicate issues with fat absorption and are rarely due to not eating enough foods rich in Vitamin A.

What patients is this test right for?This test might be recommended if you have symptoms or conditions related to Vitamin A levels, such as vision problems, poor growth, or frequent bone fractures.

What type of sample is required for this test?2 mL serum
It's important to keep the sample protected from light.

Test ResourcesFor more information, please consult your healthcare provider.

Additional test information

Vitamin A is critical for vision, growth, and many cell functions. High concentrations of Vitamin A are seen with renal failure, but this is not associated with toxicity and excessive ingestion. High concentrations are associated with bone fractures. Low concentrations of Vitamin A are consistent with fat malabsorption and are rarely due to inadequate diet.

Collection and processing

• Sample type: Serum
• Fasting: Yes
• Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.