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B12 Direct » How do I contact US Postal Service by phone? If the online tracking does not provide the answers you need you may be able to learn more by phoning USPS. Be prepared for a long wait on hold. The phone number for USPS: 1-800-275-8777. We find the best option to choose in the main voice menu is the 4th option, “carrier”.
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How much Vitamin B12 do You Need? The recommended daily allowance (RDA) for Vitamin B12 ranges from 0.4 to 2.8μg per day. The daily value for vitamin B12 is 2.4μg per day, which has been recently reduced from 6μg per the USDA food labeling standards. Pregnant women require 2.6μg, and lactacting women should consume at least 2.8μg of vitamin B12.
Although reference ranges can vary from lab to lab, the normal readings for vitamin B12 are approximately 200 to 900 picograms per milliliter, or pg/ml, of blood. Below 200 pg/ml indicates deficiency. If your levels are this low, you likely have symptoms of deficiency. Older adults may have symptoms if their levels are below 500 pg/ml.
Blood tests are usually recommended to analyze the level of Vitamin B12 in the body. However, urine can also be analyzed for determining the level of vitamin B12. You are advised not to eat or drink 6-8 hours before testing. The blood is drawn through the aseptic technique and send for evaluating levels of vitamin B12.
Blood tests for B12 may show elevated levels in people who are (or have recently been) taking vitamin B supplements [ 110 ]. This is usually not of concern as vitamin B12 is not considered toxic. High levels of vitamin B12 when not supplementing are important because they may indicate an underlying health condition, such as:
Vitamin Deficiency Injectable System - B12 with NDC 70529-290 is a a human prescription drug product labeled by It3 Medical Llc. The generic name of Vitamin Deficiency Injectable System - B12 is cyanocobalamin. The product’s dosage form is kit and is administered via form.