ATI RN
ATI Pharmacology Proctored Exam
1. A client in the operating room received a dose of Succinylcholine, leading to muscle rigidity and a sudden rise in body temperature. The nurse should anticipate a prescription for which of the following medications?
- A. Neostigmine
- B. Naloxone
- C. Dantrolene
- D. Vecuronium
Correct answer: C
Rationale: Muscle rigidity and a sudden rise in temperature are indicative of malignant hyperthermia, a potential complication of succinylcholine. Dantrolene is the drug of choice to treat malignant hyperthermia as it acts on skeletal muscles to reduce metabolic activity and counteract the symptoms. Neostigmine (Choice A) is used to reverse the effects of non-depolarizing neuromuscular blocking agents, not for malignant hyperthermia. Naloxone (Choice B) is an opioid antagonist used for opioid overdose. Vecuronium (Choice D) is a non-depolarizing neuromuscular blocking agent and is not the appropriate medication for malignant hyperthermia.
2. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?
- A. Heparin
- B. Alprazolam
- C. Digoxin
- D. Levothyroxine
Correct answer: C
Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.
3. The client with angina is being discharged to home. The nurse is instructing the client on dietary changes. What should be included in this teaching?
- A. Decrease salt and fat intake and limit alcohol intake.
- B. There are no dietary restrictions for a person diagnosed with angina.
- C. Limit smoking and increase protein and sugar intake.
- D. Increase fruits, vegetables, and foods high in cholesterol.
Correct answer: A
Rationale: The correct answer is to decrease salt and fat intake and limit alcohol intake. These dietary changes can help manage angina by reducing the workload on the heart and preventing further plaque buildup in the arteries. Choices B, C, and D are incorrect as dietary restrictions for angina typically involve reducing salt, fat, and alcohol intake, rather than increasing sugar or cholesterol intake.
4. A client is being discharged with a new prescription for an antihypertensive medication. Which of the following statements should the nurse provide?
- A. Be sure to limit your potassium intake while taking the medication.
- B. You should check your blood pressure every 8 hours while taking this medication.
- C. Your medication dosage will be increased if you develop tachycardia.
- D. Change positions slowly when you move from sitting to standing.
Correct answer: D
Rationale: The correct answer is D. Orthostatic hypotension is a common adverse effect of antihypertensive medications. The client should move slowly to a sitting or standing position and should be taught to sit or lie down if lightheadedness or dizziness occurs. Choices A, B, and C are incorrect. Limiting potassium intake is usually not necessary with antihypertensive medications. Checking blood pressure every 8 hours is not a standard recommendation unless specified by a healthcare provider. Increasing medication dosage due to tachycardia is not a typical practice for antihypertensive medications.
5. While caring for a client receiving IV heparin, which of the following findings should the nurse identify as an adverse effect of this medication?
- A. Hypertension
- B. Hyperglycemia
- C. Thrombocytopenia
- D. Leukopenia
Correct answer: C
Rationale: Thrombocytopenia, a decrease in platelet count, is a known adverse effect associated with heparin therapy. It can lead to an increased risk of bleeding and should be closely monitored during treatment. Choices A, B, and D are incorrect. Hypertension is not typically associated with heparin use; hyperglycemia is not a common adverse effect of heparin; leukopenia is not a primary side effect of heparin therapy.
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