ATI 240L Pharm Lab Final Exam

ATI 240L Pharm Lab Final Exam Related

Review ATI 240L Pharm Lab Final Exam related questions and content

A nurse is preparing to administer lamivudine 150 mg PO BID. Available is lamivudine 100 mg tablets. How many tablets 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: 1.5 tablets

Rationale: The correct answer is 1.5 tablets. To calculate this, we first need to determine the total dosage required per dose, which is 150 mg. Since each tablet is 100 mg, we divide 150 mg by 100 mg to find out how many tablets are needed. 150 mg ÷ 100 mg = 1.5 tablets. Therefore, the nurse should administer 1.5 tablets per dose.

Choice A (1 tablet) is incorrect because it does not provide the full dosage of 150 mg per dose. Choice B (2 tablets) is incorrect because it would exceed the required dosage. Choices C-G are also incorrect for the same reason. The correct answer of 1.5 tablets balances the need for the full dosage while avoiding overdosing.

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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 providing discharge teaching to the parent of child who is prescribed diphenhydramine 75 mg elixir every 4 hr as needed. The amount available is diphenhydramine elixir 25 mg/2.5mL. 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: 7.5 mL

Rationale: Correct Answer: 7.5 mL

Rationale: To find the mL per dose, divide the prescribed dose (75 mg) by the concentration of the elixir (25 mg/2.5mL):
75 mg ÷ 25 mg/2.5mL = 75 mg ÷ 10 mg/mL = 7.5 mL.

Summary:
A) Incorrect, not the correct calculation.
B) Incorrect, not the correct calculation.
C) Incorrect, not the correct calculation.
D) Incorrect, not the correct calculation.
E) Incorrect, not the correct calculation.
F) Incorrect, not the correct calculation.
G) Incorrect, not the correct calculation.

A nurse is preparing to administer 150 mg of an antibiotic IM. Available is 2 g/10 mL. Haw many mi 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: 0.8 mL

Rationale: To determine the correct answer, first, convert 150 mg to grams (150 mg = 0.15 g). Then, calculate how many milliliters of the antibiotic contain 0.15 g by setting up a proportion: 2 g is in 10 mL, so 0.15 g is in x mL. Solving for x gives us 0.75 mL. However, since the question asks for the answer rounded to the nearest tenth, the nurse should administer 0.8 mL per dose. The other choices are incorrect because they are not the result of the accurate conversion and calculation process.

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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