Administering cold fluids to many, especially elderly and geriatric patients, would potentially place patients into hypothermia. Cold fluids are also known to increase cardiac irritability which could have produced life threatening cardiac arrhythmias. Before fluid warmers, Paramedics would have to carry IV fluids into the station during cold weather to prevent the fluids from becoming too cold outside. Often, Paramedics would have to place IV fluids on the dashboard and turn the defrost on high to warm up the cold IV fluids while they would respond to a call.