ATI RN
ATI Pharmacology Proctored Exam 2023
1. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. INR
- C. aPTT
- D. Platelet count
Correct answer: C
Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.
2. What is the correct medical term used to describe impaired blood flow in the coronary arteries?
- A. Myocardial infarction
- B. Angina pectoris
- C. Cerebrovascular accident
- D. Coronary heart disease
Correct answer: D
Rationale: The correct medical term for impaired blood flow in the coronary arteries is Coronary heart disease. This condition is characterized by a narrowing or blockage of the coronary arteries, leading to reduced blood flow to the heart muscle. Myocardial infarction (choice A) refers to a heart attack, which occurs when blood flow to a part of the heart is blocked. Angina pectoris (choice B) is chest pain or discomfort that occurs when the heart muscle doesn't receive enough oxygen-rich blood. Cerebrovascular accident (choice C) is the medical term for a stroke, which occurs when blood flow to a part of the brain is interrupted.
3. A nurse is providing discharge instructions for a client who has a new prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take the medication before bed.
- B. Monitor for increased blood pressure.
- C. Take the medication on an empty stomach.
- D. Monitor for leg cramps.
Correct answer: D
Rationale: The correct answer is D: 'Monitor for leg cramps.' Leg cramps may indicate hypokalemia, an adverse effect of hydrochlorothiazide, and should be reported to the provider. Choice A is incorrect because hydrochlorothiazide is usually taken in the morning to avoid nocturia. Choice B is incorrect as hydrochlorothiazide is a diuretic that helps lower blood pressure. Choice C is incorrect as hydrochlorothiazide can be taken with or without food.
4. A client has a new prescription for alendronate to treat osteoporosis. Which of the following instructions should be included in the teaching?
- A. Take the medication with a full glass of water after rising in the morning.
- B. Lie down for 30 minutes after taking the medication.
- C. Take the medication with a meal to reduce gastric irritation.
- D. Crush the tablet and mix it with applesauce if difficulty swallowing.
Correct answer: A
Rationale: The correct instruction for taking alendronate is to take it with a full glass of water after rising in the morning to prevent esophageal irritation. It is important to remain upright for at least 30 minutes after taking the medication to reduce the risk of esophageal irritation and ensure proper absorption. Taking the medication with a meal or crushing the tablet are not recommended instructions for alendronate administration. Choice A is the correct answer as it aligns with the proper administration guidelines for alendronate.
5. When educating a client starting Simvastatin, which instruction should the nurse provide?
- A. Take this medication in the evening.
- B. Change positions slowly when rising from a chair.
- C. Maintain a consistent intake of green leafy vegetables.
- D. Limit fluid intake to 1 L per day.
Correct answer: A
Rationale: The correct answer is to take Simvastatin in the evening. This timing is important because the body synthesizes the most cholesterol at night. By taking the medication in the evening, its effectiveness is increased, leading to better outcomes for the client.
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