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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.
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A nurse is caring for client who is postoperative following an appendectomy and is prescribed D, lactated Ringer's at 150 mL/hr by continuous IV iinfusion for 12 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. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 50 gtt/min
Rationale: To calculate the IV infusion rate in drops per minute (gtt/min), we use the formula: (Volume to be infused in mL) x (Drop factor) / (Time in minutes). In this case, the volume is 150 mL, the drop factor is 20 gtt/mL, and the time is 60 minutes (12 hours x 60 minutes/hour). Plugging in the values: (150 mL) x (20 gtt/mL) / (720 min) = 50 gtt/min. Therefore, the correct answer is 50 gtt/min. This rate ensures the prescribed volume is infused correctly over the specified time.
Incorrect options:
A) Incorrect, as it does not calculate the correct drop rate.
B-G) These options are also incorrect as they do not provide the accurate calculation for the IV infusion rate.
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.)
Correct Answer: 0.8 mL
Rationale: To calculate the mL of heparin to administer, use the formula: amount needed (units) / amount per mL (units) = mL to administer. In this case, 3,800 units / 5,000 units/mL = 0.76 mL. Rounded to the nearest tenth, the correct answer is 0.8 mL. Option A is the correct answer because it is the calculated result. Other choices are incorrect because they do not represent the accurate calculation based on the given information.
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.)
Correct Answer: 2 capsules
Rationale: The correct answer is 2 capsules per dose. To calculate this, we first convert the total daily dose of 2 grams to milligrams (2000 mg). Then divide the total daily dose by the number of doses per day (4 doses), resulting in 500 mg per dose. Since each capsule is 250 mg, the nurse should administer 2 capsules per dose to achieve the required 500 mg. Other choices are incorrect because they do not follow the correct calculation process or do not result in the required dosage of 500 mg per dose.
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.)
Correct Answer: 200 mL/hr
Rationale: To calculate the infusion rate for ceftriaxone 1g over 30 minutes, we first convert the time to hours (30 minutes = 0.5 hours). Then, we divide the total volume (100 mL) by the time in hours (0.5) to get the hourly infusion rate: 100 mL / 0.5 hours = 200 mL/hr. This is the correct answer because it ensures the medication is delivered over the prescribed time frame. Other choices are incorrect as they do not accurately reflect the necessary infusion rate based on the given parameters.
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.