A 2 yo toddler is seen in the clinic after a 2-day history o…

A 2 yo toddler is seen in the clinic after a 2-day history of intermittent vomiting and diarrhea. An assessment reveals an irritable child with dry mucous membranes, 5 second capillary refill, 3 second recoil of skin, tachycardia to 160,  tachypnea at 40 BPM, and cool hands and feet. The child has had one wet diaper in the past 24 hours. What will the nurse practitioner recommend?