Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious or has severe pulmonary edema. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start an IV with D5W /SRP: "To keep open", minimal flow rate/Use lactated Ringer's if signs of hypovolemia are present. Administer atropine. Correct hypoxia before giving atropine ... Administer pralidoxime chloride Q: I am puzzed with the meaning of "IV", "D5W", and "SRP". I googled and seached it at wikipedia and thefreedictionary but in vain. Thank you so much for your help.