ATI RN
ATI Pharmacology
1. A healthcare provider in a clinic is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: Potassium 3.4 mEq/L is below the expected reference range, which increases the risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, particularly in older clients taking Digoxin. Hypokalemia potentiates the effects of Digoxin, making the heart more sensitive to its toxic effects. Monitoring and correcting electrolyte imbalances, especially low potassium levels, are crucial to prevent adverse effects of digoxin therapy. Calcium levels do not directly influence digoxin toxicity, so choices A and B are incorrect. High potassium levels, as in choice D, are less likely to increase the risk of digoxin toxicity compared to low potassium levels.
2. A client has a new prescription for combination oral NRTIs for the treatment of HIV. Which of the following statements should the nurse include in discharge teaching?
- 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: The correct answer is A. NRTI antiretroviral medications inhibit the enzyme reverse transcriptase, which is essential for HIV replication. By blocking this enzyme, the medications prevent the virus from replicating and spreading. This mechanism of action helps to control the progression of HIV infection in the body. Choices B, C, and D are incorrect because NRTIs do not work by preventing protein synthesis, weakening the cell wall of the virus, or blocking HIV entry into cells. These mechanisms are associated with different classes of antiretroviral medications used in HIV treatment.
3. A client has a new prescription for Somatropin to stimulate growth. The client should monitor for which of the following adverse effects?
- A. Hyperglycemia.
- B. Bradycardia.
- C. Urinary frequency.
- D. Edema.
Correct answer: A
Rationale: Somatropin is known to cause hyperglycemia as a common adverse effect. Therefore, the client should be instructed to monitor for elevated blood glucose levels closely while taking this medication to ensure early detection and management of hyperglycemia.
4. While caring for a client receiving epoetin alfa to treat anemia, which finding should the nurse monitor for?
- A. Leukocytosis
- B. Hypertension
- C. Hyperkalemia
- D. Fever
Correct answer: B
Rationale: The nurse should monitor the client for hypertension when receiving epoetin alfa. Epoetin alfa stimulates red blood cell production, which can lead to increased blood pressure. Leukocytosis (increased white blood cells) and hyperkalemia (high potassium levels) are not typically associated with epoetin alfa therapy. Fever is also not a common adverse effect of this medication.
5. A client is receiving chemotherapy and has a prescription for ondansetron IV for nausea and vomiting. The nurse should monitor the client for which of the following adverse effects?
- A. Hypotension
- B. Bradycardia
- C. Tremors
- D. Urinary retention
Correct answer: C
Rationale: The correct answer is C: Tremors. Ondansetron can cause tremors as an adverse effect. Monitoring for tremors is essential as it can indicate a potential adverse reaction to the medication. Hypotension (choice A) and bradycardia (choice B) are not commonly associated with ondansetron. Urinary retention (choice D) is also not a typical adverse effect of ondansetron, making choices A, B, and D incorrect in this scenario.
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