ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for furosemide. Which of the following instructions should the nurse include?
- A. Take the medication with or without food.
- B. Monitor for signs of hypokalemia.
- C. Increase your intake of potassium-rich foods.
- D. Expect an increase in urination.
Correct answer: D
Rationale: The correct instruction to include when a client is prescribed furosemide is to expect an increase in urination. Furosemide is a diuretic that works by increasing urine production, so it is essential for the client to anticipate and understand this effect. Monitoring for signs of hypokalemia and increasing potassium-rich foods are not directly related to furosemide use. Hypokalemia is a potential side effect of furosemide, so monitoring for it is crucial. Increasing potassium-rich foods can help counteract potassium loss due to diuretic use. Taking furosemide with food is not required, as it can be taken with or without food.
2. A client has a new prescription for metoprolol. Which of the following instructions should the nurse include?
- A. Monitor your blood pressure daily.
- B. Take the medication with food.
- C. Increase your intake of potassium-rich foods.
- D. Avoid consuming grapefruit juice.
Correct answer: A
Rationale: The correct answer is A, 'Monitor your blood pressure daily.' When a client is prescribed metoprolol, it is important to monitor blood pressure daily because the medication can cause hypotension, leading to low blood pressure. Regular monitoring allows for the early detection of any potential issues and adjustment of treatment if necessary. Choices B, C, and D are incorrect. Taking metoprolol with food is not necessary, increasing potassium-rich foods is not directly related to metoprolol therapy, and avoiding grapefruit juice is more relevant for certain other medications that interact with grapefruit.
3. The client is receiving heparin therapy for deep vein thrombosis (DVT). Which lab test should be monitored to evaluate the effectiveness of heparin?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Fibrinogen levels
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the appropriate lab test to monitor the therapeutic effectiveness of heparin therapy. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure the client is within the therapeutic range to prevent clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, a different anticoagulant that affects the extrinsic pathway of the coagulation cascade. Fibrinogen levels are not specific to monitoring heparin therapy.
4. The nurse is caring for a client with heart failure who is receiving digoxin (Lanoxin). Which sign of digoxin toxicity should the nurse monitor for?
- A. Hypertension
- B. Bradycardia
- C. Hyperglycemia
- D. Insomnia
Correct answer: B
Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.
5. A client with a history of angina pectoris reports chest pain after climbing stairs. What should be the nurse's first action?
- A. Administer oxygen.
- B. Administer nitroglycerin.
- C. Sit the client down and rest.
- D. Check the client's blood pressure.
Correct answer: C
Rationale: The correct action for a client experiencing anginal pain, like chest pain after climbing stairs, is to sit the client down and have them rest. Resting reduces myocardial oxygen demand, which can help relieve anginal pain. Administering oxygen or nitroglycerin may be appropriate interventions after the client has been seated and rested. Checking the client's blood pressure is important but not the immediate priority when a client is experiencing anginal pain. Therefore, the first action should be to sit the client down and allow them to rest.
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