ATI LPN
LPN Pharmacology Assessment A
1. The client is receiving anticoagulant therapy for atrial fibrillation. Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: A
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of anticoagulant therapy in clients with atrial fibrillation. These tests help ensure that the client is within the therapeutic range and are commonly used to assess the clotting ability of the blood. Monitoring PT and INR levels allows healthcare providers to adjust anticoagulant dosages as needed to prevent complications such as bleeding or thrombosis. Activated partial thromboplastin time (aPTT) is more commonly used to monitor heparin therapy, not anticoagulant therapy for atrial fibrillation. Platelet count assesses the number of platelets in the blood and is not a direct indicator of anticoagulant therapy effectiveness. Erythrocyte sedimentation rate (ESR) is a nonspecific marker of inflammation and is not used to monitor anticoagulant therapy.
2. A client with a history of angina pectoris complains of substernal chest pain. The nurse checks the client's blood pressure and administers nitroglycerin 0.4 mg sublingually. Five minutes later, the client is still experiencing chest pain. What is the next appropriate nursing action?
- A. Administer another dose of nitroglycerin.
- B. Notify the healthcare provider immediately.
- C. Have the client lie down and stay calm.
- D. Give the client aspirin 325 mg to chew.
Correct answer: A
Rationale: If chest pain persists after the first dose of nitroglycerin, it is appropriate to administer a second dose while continuing to monitor the client's response. Nitroglycerin is a vasodilator commonly used to relieve angina symptoms by dilating blood vessels and increasing blood flow to the heart. Reassessing the client's response and providing a second dose may be necessary to achieve adequate pain relief and improve blood flow to the heart. Administering another dose of nitroglycerin is the next appropriate step in managing angina symptoms. Notifying the healthcare provider immediately (Choice B) may be necessary if the client's condition worsens or if there are other concerning symptoms. Having the client lie down and stay calm (Choice C) is generally recommended but addressing the ongoing chest pain takes precedence. Giving the client aspirin 325 mg to chew (Choice D) is beneficial for suspected myocardial infarction but is not the immediate action indicated for persistent angina symptoms.
3. A healthcare professional is assessing a client who has been taking lithium carbonate for bipolar disorder. Which of the following findings should the professional report to the provider?
- A. Increased urination
- B. Tremors
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: Tremors are a concerning sign of lithium toxicity that indicate a potential overdose. Tremors can progress to more severe symptoms if not addressed promptly. Reporting tremors promptly allows the provider to assess the client's lithium levels, adjust the dosage, or provide appropriate interventions to prevent further complications. Increased urination, weight gain, and blurred vision are potential side effects of lithium but are not indicative of toxicity or overdose. While they should still be monitored, they are not as urgent as tremors in the context of lithium therapy.
4. A healthcare provider is reviewing the medication administration record of a client who has a latex allergy. Which of the following medications should the healthcare provider identify as a potential risk for an allergic reaction?
- A. Cefoxitin
- B. Amoxicillin
- C. Erythromycin
- D. Metronidazole
Correct answer: A
Rationale: The correct answer is A, Cefoxitin. Cefoxitin can contain latex in the stopper of the vial, which may pose a risk for allergic reaction in individuals with latex sensitivity. Amoxicillin, Erythromycin, and Metronidazole do not typically contain latex components in their formulations. Healthcare providers should be vigilant in identifying and avoiding medications with latex components to prevent adverse reactions in patients with known latex allergies.
5. The client will wear a Holter monitor for continuous cardiac monitoring over the next 24 hours. What action should the nurse take to assist the client?
- A. Shave the front of the client's chest
- B. Give the client a device holder to wear around the waist
- C. Teach the client to rest as much as possible during the next 24 hours
- D. Tell the client to cover the monitor in plastic wrap before taking a bath
Correct answer: B
Rationale: Providing the client with a device holder to wear around the waist allows them to comfortably carry the Holter monitor while engaging in normal activities throughout the 24-hour monitoring period. This approach supports the client's mobility and ensures the monitor is securely in place for accurate readings. Shaving the front of the client's chest is unnecessary and not a standard practice for Holter monitor placement. Instructing the client to rest as much as possible does not promote normal daily activities which are important for accurate monitoring. Covering the monitor in plastic wrap before bathing is not recommended as it may affect the functionality of the device.
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