Chapter 48

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A nurse is preparing to administer dextrose 5% in water (D5W) 1,000 mL IV to infuse over 10 hr. The nurse should set the IV infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number.)

100 mL/hr; 1000 mL/10 hr = 100. If the amount prescribed is D5W 1,000 mL IV to infuse over 10 hr it makes sense to administer 100 mL/hr. The nurse should set the IV pump to deliver D5W 1,000 mL at 100 mL/hr.

A nurse is preparing to administer metoprolol (Lopressor) 200 mg PO daily. The amount available is metoprolol 100 mg/tab. How many capsules should the nurse administer? (Round the answer to the nearest whole number.)

2 tabs; 200 mg/100 mg = 2 If there is 100 mg/tab and the prescribed amount is 200 mg, it makes sense to give 2 tabs. The nurse should administer metoprolol 2 tabs PO daily.

A nurse is preparing to administer acetaminophen (Tylenol) 325 mg PO every 4 hr PRN for pain. The amount available is acetaminophen liquid 160 mg/5mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number.)

10 mL; 325 mg/160 mg X 5 mL = 10.1 - round to nearest whole number = 10 If there are 160 mg/5 mL and the prescribed amount is 325 mg, it makes sense to administer 10 mL. The nurse should administer acetaminophen liquid 10 mL PO every 4 hr PRN for pain.

A nurse is preparing to administer methylprednisolone acetate (Depo-Medrol) 10 mg by IV bolus. The amount available is methylprednisolone acetate injection 40 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)

0.3 mL; 10 mg/40 mg X 1 mL = 2.5: round to nearest tenth 0.3 If there are 40 mg/mL and the prescribed amount is 10 mg, it makes sense to administer 0.3 mL. The nurse should administer methylprednisolone acetate injection 0.3 mL by IV bolus.

A nurse is preparing to administer lactated Ringer's (LR) 1,000 mL to infuse over 4 hr. The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number.)

83 gtt/min; 1000 mL/240 mins X 20 gtt/min = 83.33 - round to nearest whole number = 83.

A nurse is preparing to administer lactated Ringer's (LR) IV 100 mL over 15 min. The nurse should set the IV infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number.)

400 mL/hr; 15 min X 4 = 60 mins, 100 mL x 4 = 400 mL If the amount prescribed is 100 mL to infuse over 15 min (0.25 hr), it makes sense to administer 400 mL/hr. The nurse should set the IV pump to deliver LR IV 100 mL at 400 mL/hr.

A nurse is preparing to administer kanamycin (Kantrex) 15 mg/kg/day IV bolus divided in equal doses every 8 hr to a school-age child who weighs 66 lb. The amount available is kanamycin injection 1 g/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth.)

0.2 mL; 66 lbs/2.2 lbs = 30 kg. 30 kg X 15 mg = 450. 450/1000 = 0.45. 0.45/3 = 0.15. Round to nearest tenth = 0.2 mL. If there is 1 g (1,000 mg)/mL and the prescribed amount is 150 mg, it makes sense to give 0.2 mL. The nurse should administer kanamycin injection 0.2 mL IV bolus every 8 hr.

A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 250 mL IV to infuse over 30 min. The drop factor of the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number.)

83 gtt/min; 250 mL/30 min X 10 gtt/min = 83.33: round to nearest whole number = 83 If the amount prescribed is 250 mL to infuse over 30 min it makes sense to administer 83 gtt/min. The nurse should set the manual IV infusion to deliver 0.9% NaCl 250 mL IV at 83 gtt/min.


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