ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for heparin. Which of the following laboratory results should be monitored to evaluate the effectiveness of the medication?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Platelet count
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.
2. 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.
3. A client being seen in the emergency department for complaints of chest pain confides in the nurse about regular use of cocaine as a recreational drug. The nurse takes which important action in delivering holistic nursing care to this client?
- A. Reports the client to the police for illegal drug use
- B. Explains to the client the damage that cocaine does to the heart
- C. Tells the client it is imperative to stop before myocardial infarction occurs
- D. Teaches about the effects of cocaine on the heart and offers a referral for further help
Correct answer: D
Rationale: In this scenario, the nurse should prioritize educating the client about the effects of cocaine on the heart and provide a referral for further help. This approach is crucial in addressing the root cause of the client's health issues and supporting them in making informed decisions about their health. Reporting the client to the police is not appropriate in this situation as the focus should be on the client's health and well-being. Simply explaining the damage without offering solutions may not effectively address the client's needs or promote holistic care. Telling the client to stop without providing support or education may not be as effective as teaching about the effects of cocaine and offering help for cessation. Therefore, educating about the effects and providing a referral for further assistance is the best course of action for holistic nursing care.
4. The client with a history of angina pectoris reports chest pain unrelieved by nitroglycerin. Which action should the nurse take next?
- A. Administer another dose of nitroglycerin.
- B. Notify the healthcare provider immediately.
- C. Have the client lie down and rest.
- D. Encourage the client to take deep breaths.
Correct answer: B
Rationale: When a client with a history of angina pectoris reports chest pain unrelieved by nitroglycerin, it may indicate a myocardial infarction, also known as a heart attack. In this situation, the nurse should immediately notify the healthcare provider to ensure prompt evaluation and appropriate intervention. Delay in seeking medical attention for chest pain unrelieved by nitroglycerin can be life-threatening, as it might be a sign of a more serious cardiac event. Administering another dose of nitroglycerin (Choice A) without further evaluation can be risky, as the client's condition may require a different intervention. Having the client lie down and rest (Choice C) or encouraging deep breaths (Choice D) are not appropriate actions in this scenario where a more serious cardiac event needs to be ruled out.
5. The client with a history of left-sided heart failure is exhibiting increasing shortness of breath and frothy sputum. What is the priority nursing action?
- A. Administer oxygen
- B. Encourage coughing and deep breathing
- C. Place the client in a supine position
- D. Notify the healthcare provider immediately
Correct answer: A
Rationale: Shortness of breath and frothy sputum are indicative of pulmonary edema, a serious condition that requires immediate intervention to improve oxygenation. Administering oxygen is the priority action to support the client's respiratory function and prevent further deterioration. Oxygen therapy helps increase the oxygen levels in the blood, alleviate respiratory distress, and support vital organ function. Prompt intervention with oxygen can help stabilize the client while further assessments and treatments are initiated. Encouraging coughing and deep breathing may worsen the client's condition by increasing respiratory effort. Placing the client in a supine position can further compromise breathing in a client with pulmonary edema. Notifying the healthcare provider is important but not the priority when the client's respiratory status is deteriorating.
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