OneDayTests Vitamin A (Retinol) Blood Test
Type
Blood Testing
Biomarkers
1
Duration
30 min
Results
3 days
Assess your Vitamin A levels with our Vitamin A (Retinol) Blood Test.
Vitamin A is essential for vision, immune function, reproduction, and cellular communication. Deficiency in Vitamin A can lead to serious health issues, including night blindness, an increased risk of infections, and xerophthalmia, which can lead to blindness if untreated. Conversely, excess vitamin A can cause toxicity, leading to symptoms like headache, dizziness, nausea, liver damage, and even death in severe cases. Testing helps to diagnose both deficiency and toxicity, allowing for appropriate treatment.
Key Details
Who Is This For?
Anyone wanting to check specific health markers. People monitoring known conditions or treatment effectiveness. Those who want targeted testing rather than a comprehensive panel. Individuals following up on previous abnormal results or investigating specific symptoms.
What's Included
Preparation Required
Fasting for 10–12 hours before your appointment is recommended for accurate results (water is fine). Avoid alcohol for 24 hours and intense exercise for 12 hours before the blood draw. Morning appointments are ideal for consistent hormone and glucose readings. The blood draw typically takes 5–10 minutes.
Biomarkers Tested
1A fat-soluble vitamin essential for vision, immune function, skin health, and cell growth. Both deficiency and excess can cause health problems. Levels are tightly regulated by the liver.
Available at 29 locations
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- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 3 days
OneDayTests
Quick access to same-day medical testing with fast results for better health decisions.
