Pancreatitis Case Study

The case study reads that a pt with possible pancreatitis voids 150mL dark brown urine 2 hours after admit to your unit. What will you do? Second part: the physician orders a 500mL NS bolus and foley to down drain. What does that mean and why is it appropriate, what priority assessment must be done?

I just need help putting it all together. Dark brown urine, possible bile duct obstruction? Does it have to do with over production of bile?? Kidneys? Fluid bolus is to help rid some of the bile? Priority assess for electrolyte balance?? Am I on the right track?