A nurse is preparing to administer dextrose 5% in water (D,W...

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.

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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.

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 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 caring for a client who is postoperative following knee arthroplasty and has a new prescription for 1mg/kg/dose subcutaneous every 12 hr. The client weighs 185 lb. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use leading zero if it applies. Do not use a trailing zero.)

Correct Answer: 83.3 mg

Rationale: To calculate the correct dose in mg, first convert the client's weight from lb to kg. 1 lb is approximately 0.45 kg. So, 185 lb is approximately 83.9 kg. Next, multiply the weight in kg by the prescribed dose of 1mg/kg. This gives 83.9 * 1 = 83.9 mg. Round this to the nearest tenth to get 83.3 mg. The correct answer is 83.3 mg because it accurately calculates the dose based on the client's weight and the prescribed dosage. Other choices are incorrect as they either do not consider the weight conversion or do not correctly calculate the dosage according to the prescription.

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.)

Correct Answer: 3.2 mL

Rationale: To calculate the correct dosage for the infant, we first need to determine the infant's weight in kg. 12 lb is approximately 5.45 kg. Then, we calculate the total dose: 15 mg/kg * 5.45 kg = 81.75 mg per dose. Next, we convert the dose to mL using the concentration of the oral solution: 125 mg/5 mL = 25 mg/mL. Therefore, 81.75 mg ÷ 25 mg/mL = 3.27 mL. Since we need to round to the nearest tenth, the correct answer is 3.2 mL.

Summary:
- Choice A: Incorrect, as it does not follow the correct calculation method.
- Choices B-G: Irrelevant as they do not provide the correct calculation for the dosage.