ATI LPN
LPN Pharmacology Practice Test
1. When educating a client about the use of risedronate to treat osteoporosis, which instruction should be included?
- A. Drink a full glass of water with each dose.
- B. Take the medication on an empty stomach.
- C. Remain upright for 30 minutes after taking the medication.
- D. Avoid lying down for at least 1 hour after taking the medication.
Correct answer: C
Rationale: The correct instruction for a client taking risedronate to treat osteoporosis is to remain upright for 30 minutes after taking the medication. This is important to prevent esophageal irritation, as risedronate can cause irritation if it remains in contact with the esophagus. By staying upright, the medication is more likely to reach the stomach quickly and reduce the risk of irritation to the esophagus. Choices A, B, and D are incorrect. Drinking a full glass of water is recommended, not milk, to help with swallowing the medication. Risedronate should be taken on an empty stomach, not with meals, to ensure proper absorption. Additionally, avoiding lying down for at least 1 hour after taking the medication helps prevent esophageal irritation.
2. A client with a history of angina pectoris reports chest pain while ambulating in the corridor. What should the nurse do first?
- A. Check the client's vital signs.
- B. Assist the client to sit or lie down.
- C. Administer sublingual nitroglycerin.
- D. Apply nasal oxygen at a rate of 2 L/min.
Correct answer: B
Rationale: When a client with a history of angina pectoris experiences chest pain while ambulating, the priority action for the nurse is to assist the client to sit or lie down. This helps reduce the demand on the heart by decreasing physical exertion. Checking vital signs, administering medication, or applying oxygen can follow once the client is in a more comfortable position. Checking vital signs (Choice A) may be important but addressing the immediate discomfort by positioning the client comfortably takes precedence. Administering sublingual nitroglycerin (Choice C) is appropriate but should come after ensuring the client's comfort. Applying nasal oxygen (Choice D) can be beneficial, but it should not be the first action; assisting the client to sit or lie down is the initial priority.
3. A client has a new prescription for sertraline. Which of the following instructions should the nurse include?
- A. Take the medication in the morning.
- B. Avoid consuming grapefruit juice.
- C. Take the medication with a full glass of water.
- D. Monitor for signs of weight gain.
Correct answer: B
Rationale: The correct instruction for the nurse to include is to 'Avoid consuming grapefruit juice.' Grapefruit juice can increase sertraline levels, leading to an elevated risk of side effects. Instructing the client to avoid grapefruit juice is crucial to prevent potential interactions that could impact the effectiveness and safety of the medication. The other options are not directly related to sertraline administration. Taking the medication in the morning may vary depending on individual preferences or the prescriber's directions. Taking the medication with a full glass of water is a general instruction for many medications and not specific to sertraline. Monitoring for signs of weight gain is important but not a direct instruction related to taking sertraline.
4. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Complete blood count (CBC)
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.
5. The nurse is preparing to administer an intravenous dose of furosemide (Lasix) to a client with heart failure. The nurse should monitor for which potential side effect?
- A. Hypertension
- B. Hyperkalemia
- C. Hypokalemia
- D. Hypoglycemia
Correct answer: C
Rationale: Furosemide is a loop diuretic that works by promoting the excretion of water and electrolytes, including potassium. This loss of potassium can lead to hypokalemia, which can be a potential side effect of furosemide administration. Hypokalemia can result in cardiac dysrhythmias and other complications, especially in clients with heart failure who may already have compromised cardiac function. Therefore, monitoring for signs of hypokalemia, such as muscle weakness, cardiac irregularities, and fatigue, is essential when administering furosemide. Choice A, hypertension, is incorrect because furosemide is actually used to treat hypertension by reducing excess fluid in the body. Choice B, hyperkalemia, is incorrect as furosemide causes potassium loss, leading to hypokalemia. Choice D, hypoglycemia, is unrelated to the mechanism of action of furosemide and is not a common side effect associated with its administration.
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