ATI RN
ATI Pharmacology Proctored
1. Which of the following is the antidote for Heparin toxicity?
- A. Protamine
- B. Methylene blue
- C. N-acetylcysteine
- D. Glucagon
Correct answer: A
Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.
2. When teaching a client about a new prescription for Celecoxib, which of the following information should the nurse include?
- A. Increases the risk for a myocardial infarction
- B. Decreases the risk of stroke
- C. Inhibits COX-1
- D. Increases platelet aggregation
Correct answer: A
Rationale: The nurse should educate the client that taking Celecoxib increases the risk of a myocardial infarction due to its suppression of vasodilation. Celecoxib belongs to the class of NSAIDs known to have cardiovascular risks, including an increased risk of heart attacks. Choice B is incorrect because Celecoxib does not decrease the risk of stroke. Choice C is incorrect because Celecoxib selectively inhibits COX-2 rather than COX-1. Choice D is incorrect because Celecoxib does not increase platelet aggregation; in fact, it inhibits platelet aggregation.
3. A client with active tuberculosis asks why he must take four different medications. Which of the following responses should the nurse make?
- A. Taking four medications decreases the risk of a severe allergic reaction.
- B. Taking four medications reduces the chance that the bacteria will become resistant.
- C. Taking four medications reduces the risk of adverse reactions.
- D. Taking four medications decreases the chance of having a positive tuberculin skin test.
Correct answer: B
Rationale: When treating tuberculosis, using a combination of multiple medications is crucial to reduce the risk of bacterial resistance. The use of four medications helps to target the bacteria from different angles, making it harder for them to develop resistance to the treatment. This approach is essential to ensure the effectiveness of the treatment regimen and to prevent the spread of drug-resistant strains of tuberculosis. Choices A, C, and D are incorrect because the primary reason for using multiple medications in tuberculosis treatment is to prevent the development of bacterial resistance, not to decrease the risk of allergic reactions, adverse reactions, or affecting the tuberculin skin test results.
4. A healthcare professional is caring for a client who is prescribed Metformin. Which of the following laboratory values should the healthcare professional monitor to assess for potential adverse effects?
- A. Blood glucose
- B. Creatine kinase
- C. Hemoglobin A1c
- D. Serum creatinine
Correct answer: D
Rationale: Corrected Rationale: Metformin can lead to lactic acidosis, especially in individuals with impaired renal function. Monitoring the client's serum creatinine levels is crucial to assess kidney function because Metformin is eliminated by the kidneys, and impaired renal function can increase the risk of adverse effects. Monitoring blood glucose levels is essential for assessing the effectiveness of Metformin in managing diabetes but is not directly related to potential adverse effects of Metformin. Creatine kinase is not typically monitored in relation to Metformin therapy. Hemoglobin A1c is used to assess long-term glucose control in diabetes but is not specific for monitoring Metformin adverse effects.
5. A client with chronic kidney disease has a new prescription for epoetin alfa. The nurse should instruct the client to increase dietary intake of which of the following substances?
- A. Iron
- B. Protein
- C. Potassium
- D. Sodium
Correct answer: A
Rationale: Patients with chronic kidney disease are often prescribed epoetin alfa to treat anemia. Epoetin alfa stimulates red blood cell production, increasing the body's demand for iron to support this process. Therefore, clients taking epoetin alfa should be advised to increase their dietary intake of iron-rich foods to meet the increased demand and prevent iron deficiency anemia. Choices B, C, and D are incorrect because while protein is essential for overall health, potassium and sodium intake may need to be restricted in clients with chronic kidney disease to manage electrolyte balance and blood pressure.
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