ATI RN
ATI Pharmacology
1. A healthcare professional is caring for a client who is prescribed Digoxin. Which of the following findings should the healthcare professional monitor to assess for potential toxicity?
- A. Bradycardia
- B. Hypertension
- C. Hypoglycemia
- D. Hypercalcemia
Correct answer: A
Rationale: The correct answer is A: Bradycardia. Bradycardia is a common sign of Digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring the client's heart rate regularly is essential to detect and manage toxicity promptly. Choice B, Hypertension, is incorrect as Digoxin toxicity typically presents with bradycardia and not hypertension. Choices C and D, Hypoglycemia and Hypercalcemia, are also incorrect as they are not typically associated with Digoxin toxicity.
2. What is the therapeutic action of Phenytoin?
- A. Antidiabetic
- B. Anticonvulsant
- C. Mood stabilizer
- D. Antianxiety agent
Correct answer: B
Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.
3. A client with angina is seeking a prescription for sildenafil to manage erectile dysfunction. Which of the following medications is contraindicated with Sildenafil?
- A. Aspirin
- B. Isosorbide
- C. Clopidogrel
- D. Atorvastatin
Correct answer: B
Rationale: Isosorbide, an organic nitrate used for angina, is contraindicated with sildenafil due to the risk of fatal hypotension. Concurrent use of these medications can lead to severe hypotension. Patients are advised to avoid taking nitrate medications for 24 hours after using isosorbide to prevent this dangerous interaction.
4. While caring for a client on long-term aspirin therapy, the nurse should monitor the client for which of the following complications?
- A. Hemorrhagic stroke
- B. Thromboembolic stroke
- C. Iron deficiency anemia
- D. Neutropenia
Correct answer: A
Rationale: Corrected Rationale: Long-term aspirin therapy can increase the risk of hemorrhagic stroke due to its antiplatelet effects, which can lead to bleeding complications. Aspirin inhibits platelet function, potentially causing bleeding in the brain and increasing the risk of a hemorrhagic stroke. Choice B, thromboembolic stroke, is incorrect because aspirin therapy is actually used to prevent thromboembolic events by inhibiting platelet aggregation. Choices C and D, iron deficiency anemia and neutropenia, are not directly associated with long-term aspirin therapy.
5. A healthcare provider in an emergency unit is reviewing the medical record of a client who is being evaluated for angle-closure glaucoma. Which of the following findings are indicative of this condition?
- A. Insidious onset of painless loss of vision
- B. Gradual reduction in peripheral vision
- C. Severe pain around the eyes
- D. Intraocular pressure of 12mm Hg
Correct answer: C
Rationale: Severe pain around the eyes that radiates over the face is a characteristic symptom of acute angle-closure glaucoma. This intense pain is typically accompanied by other symptoms such as blurred vision, halos around lights, redness in the eye, and sometimes nausea and vomiting. The acute rise in intraocular pressure leads to these symptoms, indicating a medical emergency that requires immediate attention to prevent vision loss. Choices A, B, and D are incorrect. Insidious onset of painless loss of vision is more suggestive of conditions like age-related macular degeneration or diabetic retinopathy. Gradual reduction in peripheral vision is commonly seen in conditions like open-angle glaucoma. An intraocular pressure of 12mm Hg is within the normal range and not indicative of the acute rise seen in angle-closure glaucoma.
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