interact fatally with epinephrine Memory disorders Pacemaker or other implantable medical devices Porphyria (acute) Seizure disorders Situs inversus Von Willebrand Disease Information provided In addition to mention of the relevant medical condition(s), the tag may have a telephone number that medical personnel can call for more information, for example that of physician, care-giver or next of kin. Where applicable and provided, the wearer's national health service user number can enable access to a more detailed case history. Basically, the medical information tag, engraved with the wearer's personal medical problem or history, speak for the wearer when the wearer can't. Incidentally and where the symptoms can mislead, such a tag may also be useful as evidence of such a condition to law enforcement personnel. Types There are various types of medical ID available. The most common form of medical ID is jewelry which provides a logo or inscription indicating a particular medical condition. These medical identification tags can be made out of stainless steel (usually classified as 316L and known as surgical stainless steel), sterling silver or gold. If found by emergency personnel the inscription provides an indication of the wearer's special medical needs. Tags are available with pre-engraved conditions or can be custom engraved with your specific medical histories and have the benefit that all information is self-contained and does not require any form of technology to view in case of an emergency. Another type of medical ID jewelry indicates membership in a medical information organization such as the MedicAlert Foundation, American Medical ID, and StickyJ Medical ID. Such medical ID jewelry includes a member identification number and a toll-free number or URL for medical emergency personnel to obtain full information about the wearer's medical conditions, treatment, and history. These organizations maintain a database of medical information on their members and can provide it to medical personnel when requested. The newest technology allows the user to carry stickers with an NFC Tag. A similar technology allows the user to carry stickers with a QR code. By scanning the NFC Tag or the QR code with a smartphone, you will reach the stored medical alert information. Modern mobile phones typically have a facility to gain access to the owner's medical emergency information (only) from the lock screen. Silicone bracelets, preprinted with a general medical condition or allergy, are also popular. The lack of personalization may be a deterrent. Recently patients have