ATI RN
ATI Pharmacology Proctored Exam 2024
1. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)
- A. Increased renal secretion
- B. Increased medication-metabolizing enzymes
- C. Liver failure
- D. Peripheral vascular disease
Correct answer: C
Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.
2. A client has a new prescription for Spironolactone. Which of the following findings should the nurse monitor as an adverse effect?
- A. Hyperkalemia
- B. Hypoglycemia
- C. Hypocalcemia
- D. Hyponatremia
Correct answer: A
Rationale: Corrected Rationale: Spironolactone is a potassium-sparing diuretic, which can lead to hyperkalemia as an adverse effect. Hyperkalemia can result in muscle weakness and cardiac dysrhythmias, making it essential for the nurse to monitor potassium levels closely when a client is on Spironolactone. Choice B, Hypoglycemia, is incorrect because Spironolactone is not known to cause low blood sugar levels. Choice C, Hypocalcemia, and Choice D, Hyponatremia, are also incorrect as Spironolactone is not associated with decreased levels of calcium or sodium.
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. Which of the following conditions is not treated with Prednisone?
- A. Cushing’s disease
- B. Testicular cancer
- C. Lymphomas
- D. Chronic leukemias
Correct answer: B
Rationale: Prednisone is not a common treatment for testicular cancer. Prednisone is used in conditions like Cushing’s disease, lymphomas, and chronic leukemias due to its anti-inflammatory and immunosuppressive properties. However, testicular cancer treatment typically involves surgery, chemotherapy, and radiation therapy, but not Prednisone.
5. A client's plasma Lithium level is 2.1 mEq/L. Which of the following is an appropriate action by the nurse?
- A. Perform immediate gastric lavage.
- B. Prepare the client for hemodialysis.
- C. Administer an additional oral dose of lithium.
- D. Request a stat repeat of the laboratory test.
Correct answer: A
Rationale: In a client with a plasma lithium level of 2.1 mEq/L, immediate gastric lavage is appropriate for severe toxicity. Gastric lavage can help lower the client's lithium level by removing the unabsorbed lithium from the stomach.
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