ATI RN
ATI Pharmacology Exam 2 Questions
Extract:
Question 1 of 5
A nurse in a coronary care unit is admitting a client who has had CPR following a cardiac arrest. The client is receiving lidocaine IV at 2 mg/min. When the client asks the nurse why he is receiving that medication, the nurse should explain that it has which of the following actions?
Correct Answer: A
Rationale: Lidocaine stabilizes cardiac membranes, suppressing ventricular dysrhythmias post-cardiac arrest, not relieving pain, dissolving clots, or affecting intestinal motility.
Question 2 of 5
A nurse is assessing an older adult client who is receiving digoxin. The nurse should recognize that which of the following findings is a manifestation of digoxin toxicity?
Correct Answer: B
Rationale: Anorexia is a sign of digoxin toxicity, often with nausea and vomiting, due to its narrow therapeutic range. Ataxia, photosensitivity, and jaundice are not typical.
Question 3 of 5
A nurse is caring for a client who has developed agranulocytosis as a result of taking propylthiouracil to treat hyperthyroidism. The nurse should understand that this client is at increased risk for which of the following conditions?
Correct Answer: A
Rationale: Agranulocytosis reduces white blood cells, increasing infection risk, unlike bleeding, hyperglycemia, or ecchymosis, which are not directly related.
Question 4 of 5
A nurse is obtaining a medical history from a client who is to start warfarin therapy and currently uses herbal supplements at home. The nurse should inform the client that which of the following herbal supplements can interact adversely with warfarin?
Correct Answer: C
Rationale: Feverfew can increase bleeding risk by inhibiting platelet aggregation, adversely interacting with warfarin and potentially altering INR levels.
Question 5 of 5
A nurse on an oncology unit is preparing to administer doxorubicin to a client who has breast cancer. Prior to beginning the infusion, the nurse verifies the client's current cumulative lifetime dose of the medication. For which of the following reasons is this verification necessary?
Correct Answer: C
Rationale: Excessive doxorubicin causes cardiomyopathy, a dose-dependent risk, requiring lifetime dose monitoring, unlike extravasation, urine color, or myelosuppression.