**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a patient direct program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
To determine Vitamin C deficiency. Vitamin C is needed for the growth, development, and repair of all body tissues. Vitamin C deficiency may be due to malnutrition (scurvy), malabsorption, alcoholism, kidney failure, hyperthyroidism, and increased need due to pregnancy.