5 year old has fever x 2 days running around 100-101F. decreases slightly after administration of tylenol, but returns. lethargic. had brief periods of cool hands and feet. states she s cold and visibly shivering. can see carotid artery pulsating and moving down to throat area during rest. child hasn t been up and about to notice difference in carotid pulsating upon standing. no complaints from child other than feeling cold. have been giving child water to remain hydrated. viral or bacterial infection? wait it out until going to see peds?