ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has a new prescription for Prednisone. Which of the following laboratory values should be monitored by the healthcare provider?
- A. Serum potassium
- B. Serum calcium
- C. Serum sodium
- D. Serum glucose
Correct answer: D
Rationale: When a client is prescribed Prednisone, monitoring serum glucose levels is essential. Prednisone, a corticosteroid, can lead to hyperglycemia. Therefore, regular monitoring of serum glucose helps in detecting and managing any potential hyperglycemic effects of the medication. Monitoring serum potassium, calcium, or sodium is not typically required when a client is on Prednisone unless there are specific risk factors or concerns related to these electrolytes.
2. When taking Digoxin, low levels of what can cause toxicity?
- A. Potassium
- B. Calcium
- C. Sodium
- D. Magnesium
Correct answer: A
Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.
3. A client has a new prescription for Calcitonin-salmon for Osteoporosis. Which of the following tests should the client expect before beginning this medication?
- A. Skin test for allergy to the medication
- B. ECG to rule out cardiac dysrhythmias
- C. Mantoux test to rule out exposure to tuberculosis
- D. Liver function tests to assess risk for medication toxicity
Correct answer: A
Rationale: Before initiating Calcitonin-salmon, a skin test for allergy to the medication may be performed to prevent anaphylactic reactions. Allergic reactions can occur due to sensitivities to the drug, particularly in individuals with fish allergies. Therefore, it is essential for healthcare providers to assess the client's potential allergic response to Calcitonin-salmon through a skin test. The other options are not relevant in this context. An ECG is not typically required before starting Calcitonin-salmon for Osteoporosis, nor is a Mantoux test or liver function tests.
4. A client is withdrawing from alcohol and has a new prescription for Propranolol. Which of the following information should be included in the teaching?
- A. Increases the risk for seizure activity.
- B. Provides a form of aversion therapy.
- C. Decreases cravings.
- D. Results in mild hypertension.
Correct answer: C
Rationale: The correct answer is C: 'Decreases cravings.' Propranolol is commonly used as an adjunct medication during alcohol withdrawal to help reduce cravings for alcohol. It does not increase the risk for seizure activity, provide aversion therapy, or result in mild hypertension. By decreasing cravings, Propranolol can support the client in managing alcohol withdrawal symptoms and promoting abstinence. Therefore, it is important to educate the client on how Propranolol can help them cope with alcohol cravings effectively.
5. What is the therapeutic use of Phenytoin?
- A. Replacement in hypothyroidism to restore normal hormonal balance
- B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
- C. Diminished seizure activity, termination of ventricular arrhythmias
- D. Prevention of thrombus formation, prevention of extension of existing thrombi
Correct answer: C
Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.
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