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ATI 240L Pharm lab final exam
Total Questions : 20
Showing 10 questions, Sign in for moreA nurse is preparing to administer dextrose 5% in water (D,W) 150 mL IV to infuse over 3 hr. The drop factor of the manual IV tubing is the nurse should set the manual IV infusion to deliver how gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use trailing zero.)
Explanation
Rationale:
Determine the total volume to be infused.
The nurse is preparing to administer 150 mL of dextrose 5% in water (DW).
Calculate the infusion rate in mL/min.
The infusion time is 3 hours, which is equivalent to 3 x 60 = 180 minutes.
Infusion rate = Total volume / Infusion time = 150 mL / 180 min = 0.83 mL/min
Apply the drop factor to find the drip rate in gtt/min.
Drop factor of the tubing is 10 gtt/mL.
Drip rate = Infusion rate (mL/min) x Drop factor (gtt/mL) = 0.83 mL/min x 10 gtt/mL = 8.3 gtt/min
Round the drip rate to the nearest whole number.
Drip rate = 8 gtt/min
A nurse is caring for a client who is receiving heparin 3,800 units subcutaneous dally. Available is heparin 5,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)
Explanation
Determine the desired dose.
The nurse needs to administer 3,800 units of heparin.
Calculate the available dose per mL.
The available heparin is 5,000 units/mL.
Calculate the volume to be administered.
Volume = Desired dose (units) / Concentration (units/mL) = 3,800 units / 5,000 units/mL = 0.76 mL
Round the volume to the nearest tenth.
Volume = 0.8 mL
The doctor orders 250 mg of ampicillin for your patient. A 1 gram vial of powdered ampicillin is available. The label says to add 4.5 mL of sterile water t) - (round the answer to the nearest yield 1 g/10 mL. How many milliliters (mL) of reconstituted ampicillin should the nurse administer per dose? (Round to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)
Explanation
Determine the desired dose.
The doctor orders 250 mg of ampicillin.
Calculate the available dose per mL.
The label says to add 4.5 mL of sterile water to yield 1 g/10 mL. This means that each mL of the reconstituted solution contains 1 g / 10 mL = 0.1 g = 100 mg of ampicillin.
Calculate the volume to be administered.
Volume = Desired dose (mg) / Concentration (mg/mL) = 250 mg / 100 mg/mL = 2.5 mL
A nurse is preparing to administer ceftriaxone 1 g via Intermittent IV bolus over 30 min. Available is 1 g ceftriaxone sodium In 100 mL dextrose 5% in water. The nurse should set the pump to deliver how many mL/hr? (Round the answer to whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the total volume to be infused.
The nurse is preparing to administer 100 mL of ceftriaxone sodium in dextrose 5% in water.
Calculate the infusion rate in mL/hr.
The infusion time is 30 minutes, which is equivalent to 30/60 = 0.5 hours.
Infusion rate = Total volume / Infusion time = 100 mL / 0.5 hr = 200 mL/hr
A nurse is preparing to administer vancomycin 15 mg/kg/day divided equally every 12 hr. The client weighs 198 lb. How many mg should the nurse administer with dose? (Round the answer to the nearest whole number. Use leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert the patient's weight to kg.
The patient weighs 198 lb.
1 lb is approximately equal to 0.45 kg.
Patient's weight in kg = 198 lb * 0.45 kg/lb = 89.1 kg
Calculate the total daily dose.
Total daily dose = 15 mg/kg/day * 89.1 kg = 1336.5 mg/day
Calculate the dose per administration.
The dose is divided equally every 12 hours, so we divide the total daily dose by 2.
Dose per administration = 1336.5 mg/day / 2 = 668.25 mg
Round the dose to the nearest whole number.
Dose per administration = 668 mg
A nurse is preparing to administer amoxicillin 2 gm/day PO divided into two doses. The amount available is amoxicillin 500 mg tablets. How many tablets should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the dose per administration.
The total daily dose is 2 g, which is 2000 mg.
The dose is divided into two doses, so the dose per administration is 2000 mg / 2 = 1000 mg.
Calculate the number of tablets per administration.
Each tablet contains 500 mg of amoxicillin.
Number of tablets = Dose per administration (mg) / Tablet strength (mg) = 1000 mg / 500 mg/tablet = 2 tablets.
A nurse is caring for a client who is prescribed tetracycline 2 grams daily PO in four divided doses every 6 hr. Available is tetracycline 250 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the dose per administration.
The total daily dose is 2 grams, which is 2000 mg.
The dose is divided into four doses, so the dose per administration is 2000 mg / 4 = 500 mg.
Calculate the number of capsules per administration.
Each capsule contains 250 mg of tetracycline.
Number of capsules = Dose per administration (mg) / Capsule strength (mg) = 500 mg / 250 mg/capsule = 2 capsules.
A nurse is caring for an infant who weighs 12 lb and is prescribed cefuroxime sodium 15mg/kg PO every 12 hr. Available is cefuroxime sodium oral solution 125mg/5mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert the infant's weight to kg.
The infant weighs 12 lb.
1 lb is approximately equal to 0.45 kg.
Infant's weight in kg = 12 lb x 0.45 kg/lb = 5.4 kg
Calculate the dose per administration.
The prescribed dose is 15 mg/kg/dose.
Dose per administration = 15 mg/kg/dose x 5.4 kg = 81 mg/dose
Calculate the volume to be administered.
The available concentration is 125 mg/5 mL.
Volume = Dose per administration (mg) / Concentration (mg/mL) = 81 mg / (125 mg/5 mL) = 81 mg x (5 mL/125 mg) = 3.24 mL
Round the volume to the nearest tenth.
Volume = 3.2 mL
A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 5mg/kg/dose subcutaneous every 12 hr. The client weighs 245 lbs. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert the patient's weight to kg.
The patient weighs 245 lb.
1 lb is approximately equal to 0.45 kg.
Patient's weight in kg = 245 lb x 0.45 kg/lb = 110.25 kg
Calculate the dose per administration.
The prescribed dose is 1.5 mg/kg/dose.
Dose per administration = 1.5 mg/kg/dose x 110.25 kg = 165.375 mg/dose
Round the dose to the nearest whole number.
Dose per administration = 165 mg
A nurse is preparing to administer fluconazole 400 mg by intermittent IV bolus daily. Available is fluconazole 400 mg in 0.9% sodium chloride (NaCI) 200 mL to infuse over 2 hr. nurse should set the IV pump to deliver how many mi/hr? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the total volume to be infused.
The nurse is preparing to administer 200 mL of fluconazole in 0.9% sodium chloride.
Calculate the infusion rate in mL/hr.
The infusion time is 2 hours.
Infusion rate = Total volume / Infusion time = 200 mL / 2 hr = 100 mL/hr
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