I was wondering if someone could please help me understand how to get this answer. Question: A child with a NG tube to low continuous suction has an order for 1L D5/0.225 NS @ 100cc/hr. The NG drainage is to be measured q.8h. and replaced with a second IV of D5W with 10 mEq KCl per 500 cc. The child's NG tube drians 380cc. What is the infusion time of the replacement IV? the answer is 7 hours 36 minutes.... how do you get this answer? What is the completion time of the replacement IV if replacement is started at 1500? answer in book is 2236. I would appreciate any help. thanks. PAPERQUEEN