A client who weighs 176 pounds receives a prescription for l...

A client who weighs 176 pounds receives a prescription for lorazepam 0.05 mg/kg intramuscularly 2 hours before a scheduled procedure. The medication is available in 4 mg/mL vial. How many mL should the nurse administer?(Enter numeric value only.)

Correct Answer: 1

Rationale: The correct answer is 1 mL. To find the answer, we can use the following steps: Convert the client's weight from pounds to kilograms by dividing by 2.2. Multiply the weight in kilograms by the dosage in mg/kg. Divide the dose in mg by the concentration in mg/mL. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (176) / (2.2) = 80 kg. (dose in mg) = (0.05) x (80) = 4 mg. (volume in mL) = (4) / (4) = 1 mL. (rounded volume in mL) = 1 mL. Therefore, the nurse should administer 1 mL of lorazepam from the vial to the client.

You may also like to solve these questions

The healthcare provider prescribes streptomycin 200 mg intramuscularly every 12 hours. The vial is labeled, 'Streptomycin 1 gram/2.5 mL.' How many milliliters should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

Correct Answer: 0.5

Rationale: The correct answer is 0.5 mL. To find the answer, we can use the following formula: (mL to be administered) = (mg prescribed) / (mg per mL). Substituting the given values, we get: (mL to be administered) = (200) / (1000 / 2.5). Simplifying, we get: (mL to be administered) = (200) x (2.5 / 1000). (mL to be administered) = 0.5. Therefore, the nurse should administer 0.5 mL of streptomycin from the vial to the client.

A child is to receive vancomycin 40 mg/kg intravenously one hour before a scheduled procedure. The child weighs 44 pounds. How many mg of the medication should the nurse administer? (Enter numeric value only.)

Correct Answer: 800

Rationale: To find the answer, we can use the following steps: Convert the child's weight from pounds to kilograms by dividing by 2.2. Multiply the weight in kilograms by the dosage in mg/kg. Round the result to the nearest whole number. Using these steps, we get: (weight in kg) = (44) / (2.2) = 20. (dose in mg) = (40) x (20) = 800. (rounded dose in mg) = 800. Therefore, the nurse should administer 800 mg of vancomycin to the child.

The healthcare provider prescribes ganciclovir 375 mg intravenously (IV) every 12 hours to infuse over 90 minutes. The pharmacy delivers ganciclovir 375 mg in a 150 mL IV bag. How many mL/hour should the nurse program the infusion pump?(Enter a whole number only.)

Correct Answer: 100

Rationale: The correct answer is 100 mL/hour. To find the answer, we can use the following formula: (mL/hour) = (mL/minute) x 60. Substituting the given values, we get: (mL/hour) = (150 / 90) x 60. Simplifying, we get: (mL/hour) = 1.667 x 60. (mL/hour) = 100. Therefore, the nurse should program the infusion pump to deliver 100 mL/hour of ganciclovir in IV bag.

During a home visit, the nurse learns that a client is taking calcium polycarbophil, an over the counter laxative. A single tablet contains 625 mg and the daily maximum dosage is 5 grams in divided doses. How many tablets could the client safely take in one day?(Enter the numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 8

Rationale: The correct answer is 8 tablets. To find the answer, we can use the following steps: Convert the daily maximum dosage from grams to milligrams by multiplying by 1000. Divide the daily maximum dosage in milligrams by the amount of calcium polycarbophil in one tablet. Round the result to the nearest whole number. Using these steps, we get: (daily maximum dosage in mg) = (5) x (1000) = 5000 mg. (number of tablets) = (5000) / (625) = 8 tablets. (rounded number of tablets) = 8. Therefore, the client could safely take up to 8 tablets of calcium polycarbophil in one day.

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.