Q: An 18 months old boy came to the emergency department with rapid respiration, drowsiness. He had a history of vomiting and diarrhea for 3 days before the onset of his condition. By examination HR was 160, RR was 60, Temp. was 38.5 and Bp was 60/40. He had delayed capillary refill.
What is the most likely action to be done?