Aldosterone/Plasma Renin Activity Ratio, LC/MS/MS
$199.00
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Vitamin A (Retinol)
Categories:
Fitness & Nutrition
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.
$66.00Price for members $33.00
Collection method: Blood
Preparation: Overnight fasting is required. Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
How It Works
STEP 1
Order your tests online
- Easy and fast checkout
STEP 2
Visit a local Quest Diagnostics lab
- No follow-up required
- Results automatically uploaded to SelfDecode
STEP 3
Get your results and insights online
- Find out if your levels are in the optimal range
- Get easy-to-understand insights about your results
- Track your levels over time