Vapocoolant Spray Used Prior to Intravenous (IV) Insertions

This is a single blind interventional study with a post design using a convenience sample of patients undergoing a Nuclear Medicine Stress Test. The patient selection and intervention will be randomized in order to ensure a high validity study. The interventional treatment used will be a ethyl chloride mist spray manufactured by the Gebauer Company. The placebo spray that will be used is manufactured by BioLogic Aqua Research Technologies International Inc. The spray is called Nature's Tears Mist and is a sterile water. The patient's for this study are required to have intravenous cannulation (IV) access. This is a painful and invasive procedure in which a vapocoolant may confer benefit for the relief of pain.