Hey everyone I have a Med Math Exam today but this NG fluid replacement for pediatrics is throwing me off. I understand the first two parts of the problem but can someone please help me with the last two
2a. The order is for 500 mL D5/0.225% NS @ 63 mL/hr. The NG drainage is to be measured and replaced with the primary IV solution q.4h. Maximum hourly IV rate is not to exceed 85 mL/hr. What is the rate of the primary IV?
Ans: 63 mL/hr (I understand this)
2b. The nurse can increase the IV by how many additional mL/hr during the replacement of the NG drainage of?
Ans: 22 mL/hr (I understand this because the maximum rate cannot exceed 85 mL/hr so there it can be increased to 22 mL/hr to reach this maximum from 63 mL/hr)
2c. The child's NG tube drains 66 mL. What is the infusion time of the replacement IV fluid?
I do not understand how to work this problem I do understand Infusion Time (IT) = Total amount of IV fluid (mL)/ Hourly rate (mL/hr). I do not know what numbers to use
2d. The fluid replacement is started at 12 noon. What is the completion time?
Once I find the infusion time I can do the completion time. Because I am unable to do the first step to get to this step I am stuck.