The Vitamin C test (with dilution) may be used to determine Vitamin C deficiency. Vitamin C is needed for growth, development and repair of all body tissues. The Vitamin C blood test with dilution is typically used by those on a high-dose Vitamin C therapy. Vitamin C deficiency may be due to malnutrition (scurvy), malabsorption, alcoholism, kidney failure, hyperthyroidism and increased need due to pregnancy. Turnaround time for the Vitamin C test is typically 2-3 business days.
Overnight fasting for the Vitamin C testing is preferred. Refrain from taking vitamin C supplements or fruits 24 hours prior to sample collection.
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