(a) Upon certification by the department, emergency medical techni-
cians may do any of the following:
(1) Render first-aid and resuscitation services as taught in the United States Department of Transportation basic training courses for emergency medical technicians or an equivalent course approved
by the department; and
(2) Upon the order of a duly licensed physician, administer approved intravenous solutions and opioid antagonists.
(b) While in training preparatory to becoming certified, emergency medical technician trainees may perform any of the functions specified in this Code section under the direct supervision of a duly licensed
physician or a registered nurse.