A portable medical storage unit (station) is configured in the form of a phlebotomy arm wedge that includes internal storage along with other optional features to facilitate a health professional to perform a phlebotomy. The portable medical storage unit thus provides an alternative product to a phlebotomy chair and has a much smaller footprint and can easily be stored in closet or the like. Moreover, the portable medical storage unit can be made at much less cost than a phlebotomy chair.