Nokea
A nurse is preparing to titrate morphine 5 mg via tv bolus to a client. The amount available 6 morphine 8 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 0.63 mL
Rationale: To calculate the mL to administer per dose, use the formula: Desired dose (5 mg) / Stock concentration (8 mg/mL) = Volume to administer (X mL). 5 mg / 8 mg/mL = X mL. X = 0.625 mL. Rounding to the nearest hundredth gives 0.63 mL. This ensures accurate dosing. Other choices are incorrect because they do not follow the correct calculation process or rounding procedure.
You may also like to solve these questions
A nurse is preparing to administer acetaminophen 40 mg po q 8 hr PRN pain. Available is acetaminophen oral solution 10 mg/2.5 mL. How many teaspoons (tsp) should the nurse administer per dose?______tsp (Round the answer to the nearest whole number. Use a leading, zero if it applies. Do not use a trailing zero)
Correct Answer: 2 tsp
Rationale: To calculate the amount of acetaminophen solution to administer, we first need to determine the total amount of medication needed per dose. The prescription is for 40 mg, and the concentration of the oral solution is 10 mg/2.5 mL.
Step 1: Calculate how many mL are needed per dose:
40 mg ÷ 10 mg/2.5 mL = 40 mg ÷ 4 mg/mL = 10 mL
Step 2: Convert 10 mL to teaspoons:
1 teaspoon (tsp) = 5 mL
Therefore, 10 mL ÷ 5 mL/tsp = 2 tsp
So, the correct answer is 2 tsp.
Other choices are incorrect because they do not accurately reflect the calculated dose based on the prescription and the concentration of the oral solution.
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.)
Correct Answer: 668 mg
Rationale: To calculate the dose of vancomycin for the client weighing 198 lb, first convert lb to kg (1 kg = 2.2 lb). Client weight = 198 lb / 2.2 = 90 kg. Next, calculate the total daily dose: 15 mg/kg/day x 90 kg = 1350 mg/day. Since the dose is divided equally every 12 hours, administer 675 mg every 12 hours. Rounded to the nearest whole number, each dose will be 668 mg. Therefore, the correct answer is 668 mg. Other choices are incorrect as they do not follow the correct calculation process or do not account for the weight conversion and dosage frequency.
A 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.)
Correct Answer: 8 gtt/min
Rationale: The correct answer is 8 gtt/min. To calculate the IV flow rate, use the formula: Volume (mL) divided by time (min) multiplied by drop factor (gtt/mL). Given: Volume = 150 mL, Time = 180 min (3 hours x 60 min), and Drop factor = unknown (let's represent as x). So, the formula becomes: 150/180*x = 8. This simplifies to x = 8. Therefore, the nurse should set the IV infusion to deliver 8 gtt/min. Other choices are incorrect because they do not align with the correct calculation based on the given parameters.
A nurse is preparing to administer metoprolol 10 mg IV bolus to a client for heart rate control. Available is metoprolol injection 2.5 mg/mL. How many mL 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.)
Correct Answer: 4 mL
Rationale: To determine the mL to administer, divide the desired dose (10 mg) by the concentration of the drug (2.5 mg/mL): 10 mg / 2.5 mg/mL = 4 mL. Hence, the nurse should administer 4 mL. Other choices are incorrect because they do not result from the correct calculation based on the given information.
A client is to receive enoxaparin 30 mg subcutaneously. Available is enoxaparin 40 mg/mL. How many mi should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 0.8 mL
Rationale: The correct answer is 0.8 mL. To determine this, divide the desired dose (30 mg) by the concentration (40 mg/mL) to find the volume needed. 30 mg / 40 mg/mL = 0.75 mL. Since we need to round to the nearest tenth, 0.75 mL rounds up to 0.8 mL. The other choices are incorrect because they do not reflect the accurate calculation based on the provided information.