Medical math

7. The nurse is caring for a patient 1 day status post (s/p) right hip arthroplasty. The patient has two IV sites: 20-gauge angio in the right wrist and 18 gauge in the left hand. The patient has D5 NS with 20 mEq KCL infusing at 125 mL/hr. A PA pump has morphine 30 mg/30 mL, 1 mg q 10 min with a 4-hour lockout of 20 mg/4 hours. The patient has 2 units of PRBCs on hold in the blood bank. The morning assessment shows a T 99 oral, HR 110 bpm, RR 22/min, BP of 100/50, UP 30 mL/h, a H&H of 7,8/30, and a potassium level of 3.1 mEg/dL. The patient reports feeling dizzy when sitting on the side of the bed. The nurse notifies the physician and receives orders. The following questions pertain to this situation. Begin a 500 mL bolus of NS over 2 hours Transfuse 2 units of PRBCs Draw a CBC 2 hours after the second unit is infused Give 40 mEg KCL IV; repeat potassium level with CBC

a. Which IV bag would the nurse choose for the IV bolus?

5% dextrose injection USP 1000mL

0.9% sodium chloride injection USP 1000mL

Lactated Ringers injection USP 1000mL

B. How many mL/hour will the nurse infuse the NS?

CThe pharmacy delivers 40 mEg of potassium chloride in 100 mL of 0.9% NS. The facility's policy states to infuse the potassium at 20 mEq/hr. How many milliliters per hour will the nurse infuse the potassium?

d. One of the units of packed red blood cells arrives. What type of tubing would the nurse get for the blood administration?