ATI RN
ATI Pharmacology
1. A patient is prescribed acetaminophen 650 mg PO every 6 hr PRN for pain. The available acetaminophen liquid is 500 mg/5 mL. How many mL should the nurse administer per dose?
- A. 6.5 mL
- B. 7 mL
- C. 5 mL
- D. 8 mL
Correct answer: A
Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the nurse should administer 6.5 mL of acetaminophen liquid per dose to provide the prescribed 650 mg of acetaminophen. Choice B, 7 mL, is incorrect because the correct calculation results in 6.5 mL. Choice C, 5 mL, is incorrect as it is the concentration of the acetaminophen liquid, not the final volume needed. Choice D, 8 mL, is incorrect because it does not reflect the accurate calculation based on the prescription and concentration.
2. A nurse is providing instructions to a client who has a prescription for Amoxicillin and Clarithromycin to treat a Peptic Ulcer. Which of the following information should the nurse include in the teaching?
- A. Take these medications with foo '
- B. These medications can turn your stool black.'
- C. These medications can cause photosensitivity.'
- D. The purpose of these medications is to decrease the pH of gastric juices in the stomach.'
Correct answer: A
Rationale: The nurse should instruct the client to take these medications with food to reduce GI disturbances.
3. A client receives a new prescription for NRTIs for HIV treatment. Which statement should the nurse include during teaching about these medications?
- A. These medications work by inhibiting enzymes to prevent HIV replication.
- B. These medications work by preventing protein synthesis within the HIV cell.
- C. These medications work by weakening the cell wall of the HIV virus.
- D. These medications work by blocking HIV entry into cells.
Correct answer: A
Rationale: NRTIs inhibit the enzyme reverse transcriptase, essential for HIV replication. By preventing this process, viral replication is hindered, ultimately reducing the viral load in the body. Option A correctly explains the mechanism of action of NRTIs in treating HIV infection. Choices B, C, and D describe mechanisms of action that do not align with how NRTIs work in HIV treatment. B is incorrect because NRTIs do not target protein synthesis within the HIV cell. C is incorrect as NRTIs do not affect the cell wall of the HIV virus. D is incorrect because NRTIs do not block HIV entry into cells.
4. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.
5. A healthcare professional is educating a client who is starting therapy with gemcitabine. Which of the following findings should the healthcare professional instruct the client to report?
- A. Dyspnea
- B. Constipation
- C. Tinnitus
- D. Dry mouth
Correct answer: A
Rationale: The healthcare professional should instruct the client to report dyspnea since it can indicate pulmonary toxicity, a severe adverse effect associated with gemcitabine therapy. Monitoring and reporting dyspnea promptly can help in early detection and management of potential serious complications. Constipation, tinnitus, and dry mouth are not typically associated with gemcitabine therapy and are not urgent findings requiring immediate reporting.
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