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Penicillin G procaine 240,000 units intramuscularly is prescribed for a 4-year-old child who has a streptococcal respiratory infection. The medication vial is labeled 1,200,000 units/2 mL. How many mL should the nurse administer?(Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 0.4
Rationale: To find the answer, we can use the following formula: (mL to be administered) = (units prescribed) / (units per mL). Substituting the given values, we get: (mL to be administered) = (240,000) / (1,200,000 / 2). Simplifying, we get: (mL to be administered) = (240,000 x 2) / (1,200,000). (mL to be administered) = 480,000 / 1,200,000. (mL to be administered) = 0.4. Therefore, the nurse should administer 0.4 mL of penicillin G procaine to the child.
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An adult client receives a prescription for diphenhydramine 15 mL by mouth every 12 hours PRN for pruritus. The bottle is labeled, 'diphenhydramine 12.5 mg/5 mL.' What is the total daily dose in mg that the client receives? (Enter numerical value only.)
Correct Answer: 75
Rationale: To find the answer, we can use the following steps: Calculate the dose of diphenhydramine in mg per administration by multiplying the volume in mL by the concentration in mg/mL. Multiply the dose in mg per administration by the number of administrations per day. Round the result to the nearest whole number. Using these steps, we get: (dose in mg per administration) = (15) x (12.5 / 5) = 37.5 mg. (total daily dose in mg) = (37.5) x (2) = 75 mg. (rounded total daily dose in mg) = 75 mg. Therefore, the client receives 75 mg of diphenhydramine per day.
A patient who weighs 91 kg receives a prescription for a continuous infusion of dopamine at 3 mcg/kg/min. The solution is labeled, “Dopamine 400 mg in 5% Dextrose injection 250 mL.†How many mL/hour should the nurse program the infusion pump to deliver?(Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 10.2
Rationale: To determine the infusion rate in mL/hour for the dopamine solution: Calculate the total dose per minute: 3 mcg/kg/min × 91 kg = 273 mcg/min. Convert mcg/min to mcg/hour: 273 mcg/min × 60 min/hour = 16,380 mcg/hour. Convert mcg to mg: 16,380 mcg ÷ 1,000 = 16.38 mg/hour. Determine the concentration of the solution: 400 mg ÷ 250 mL = 1.6 mg/mL. Calculate the mL/hour required: 16.38 mg/hour ÷ 1.6 mg/mL = 10.2375 mL/hour. Rounded to the nearest tenth: 10.2 mL/hour.
The healthcare provider prescribes a hydration infusion of normal saline to run over 3 hours at 30 mL/kg for a client who is dehydrated and weighs 70 kg. The nurse should program the infusion pump to deliver how many mL/hour?(Enter numeric value only.)
Correct Answer: 700
Rationale: To find the answer, we can use the following steps: Calculate the total volume of normal saline in mL by multiplying the weight in kg by the dosage in mL/kg. Divide the total volume of normal saline in mL by the number of hours to get the rate in mL/hour. Round the result to the nearest whole number. Using these steps, we get: (total volume in mL) = (30) x (70) = 2100 mL. (rate in mL/hour) = (2100) / (3) = 700 mL/hour. (rounded rate in mL/hour) = 700 mL/hour. Therefore, the nurse should program the infusion pump to deliver 700 mL/hour of normal saline.
A pediatric client with cerebral palsy receives a prescription for a 75% enteral nutrition formula of 320 mL to infuse at 80 mL/hour via an enteral feeding pump. The formula is available full strength in a 240 mL can. To prepare the solution, the nurse should use how many mL of the enteral nutrition formula?(Enter numeric value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 240
Rationale: To find the answer, we can use the following steps: Calculate the amount of water needed to dilute the formula to 75% by subtracting the volume of the prescribed solution from the volume of the full strength formula. Subtract the amount of water from the volume of the can to get the amount of enteral nutrition formula. Round the result to the nearest whole number. Using these steps, we get: (water in mL) = (320) - (240) = 80 mL. (enteral nutrition formula in mL) = (240) - (80) = 160 mL. (rounded enteral nutrition formula in mL) = 160 mL. Note: The provided answer of 240 mL suggests the full can is used without dilution, possibly indicating a misinterpretation in the document. However, per the document, the correct answer is listed as 240 mL.
The healthcare provider prescribed 2 liters of 5% Dextrose in water (D5W) to infuse in 24 hours. The IV administration set delivers 15 gtt/mL. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 83
Rationale: To find the answer, we can use the following formula: (mL/hour) = (mL/minute) x 60. Substituting the given values, we get: (mL/hour) = (2000 / 24) x 60. Simplifying, we get: (mL/hour) = 83.333. (rounded mL/hour) = 83. Therefore, the nurse should program the infusion pump to deliver 83 mL/hour of D5W.