Axons. Five weeks after lysolecithin injection the total number of remyelinated axons per square millimeter of lesion area increased significantly compared with the 2 and 3 week groups Table 1 ; . The number of remyelinated axons per square millimeter increased 2.6-fold from 2 to 3 weeks and 6.2-fold from 2 to 5 weeks Table 1 ; . Myelin sheath thickness in axons remyelinated by oligodendrocytes also increased spontaneously from 2 to 5 weeks Table 1, Fig. 4 ; but never reached the thickness observed in normal axons. Communications Radio and cellular phone communications are required to be professional at all times. The use of descriptive terms to further clarify a patient's injury or condition is also acceptable. General patient condition of severity requires classification by colour code as follows: Red tag: Critical life-threatening injuries. Yellow tag: Urgent potentially life threatening injuries. Green tag: Minor or non-life threatening injuries. Black tag: Dead non survivable injuries. Use of a patient's name on the radio is prohibited at all times. Such information is to be replayed by telephone only. Dead on Arrival at Scene In the event that a person is discovered in asystole, unwitnessed, and signs of obvious death are present, attempts at resuscitation are inappropriate and should not be commenced. Be sensitive when communicating the reality of the situation to family or friends at the scene. Consider calling Victim Assistance at 624-6626. Also: Notify R.C.M.P. to attend the scene Do not disturb the surroundings at the scene any more than necessary The R.C.M.P. will contact the Medical Examiner for permission to move the body Document identification information, assessment and findings on the Patient Care Report form. Physician on Scene "When pre-hospital care personnel under medical control arrive on the scene of an emergency, a doctor patient relationship is established between the patient and the physician providing the medical control, providing that a prior doctor patient relationship has not been established by a physician on scene." When Paramedics arrive and a physician is present and has assumed responsibility for the patient, Paramedics should: Defer to the orders of the on scene physician. When the on scene physician's orders are in conflict with the Peace River Fire Department EMS Protocols or is outside the Paramedics scope of practice, the Paramedic should: o Inform the on scene physician of the discrepancy and o Not be obligated to perform any medical acts in question o Consult with the Deputy Chief of EMS Operations if the physician is insistent When pre-hospital care personnel arrive first on scene and a physician arrives on scene later and the physician and ketamine!