A 500 mL IV bag is to begin infusing at a rate of 40 mL/hr. If the infusion ended at 12:30 p.m., when did it start?

A patient is administered 1750 mL of a TPN solution every 24 hours. The TPN solution contains 20% dextrose. If each gram of dextrose provides 3.4 calories, how many calories per 24 hours does the patient receive?

Which of the following microorganisms cause diseases that are a leading cause of death in developing countries because of lack of proper sanitation? 

A. Viruses B. Bacteria C. Protozoans D. Fungi E. Helminths