ATI LPN
LPN Pharmacology Practice Questions
1. A healthcare professional is preparing to administer ceftriaxone 1 g IM to a client who has a pelvic infection. Which of the following actions should the healthcare professional plan to take?
- A. Administer the medication via IM bolus over 5 minutes.
- B. Reconstitute with 0.9% sodium chloride.
- C. Discard the reconstituted medication if it is cloudy.
- D. Administer the medication in a large muscle.
Correct answer: D
Rationale: Administering ceftriaxone in a large muscle is crucial for proper absorption and to reduce the risk of pain or tissue irritation. Intramuscular administration of ceftriaxone helps achieve optimal therapeutic levels in the bloodstream for the treatment of the pelvic infection. Choices A, B, and C are incorrect. Choice A is not recommended as ceftriaxone should not be administered as a bolus over 5 minutes. Choice B is irrelevant because the question is about the administration route, not the reconstitution process. Choice C is also irrelevant as it does not pertain to the administration but to the quality of the reconstituted medication.
2. The healthcare provider notes this rhythm on the client's cardiac monitor. The healthcare provider next reports that the client is experiencing which heart rhythm?
- A. Normal sinus
- B. Atrial fibrillation
- C. Sinus bradycardia
- D. Ventricular fibrillation
Correct answer: B
Rationale: The correct answer is B, Atrial fibrillation. Atrial fibrillation is characterized by an irregular and often rapid heart rate, which can lead to poor blood flow due to ineffective contractions of the atria. Sinus bradycardia (Choice C) is a regular but slow heart rhythm originating from the sinus node. Normal sinus rhythm (Choice A) refers to a regular heartbeat originating from the sinus node. Ventricular fibrillation (Choice D) is a life-threatening arrhythmia characterized by rapid, uncoordinated contractions of the ventricles.
3. A healthcare professional is assessing a client who has a new prescription for enalapril. Which of the following findings should the professional report to the provider?
- A. Frequent urination
- B. Dry cough
- C. Tremors
- D. Dizziness
Correct answer: B
Rationale: The correct answer is B: Dry cough. A dry cough is a common side effect of enalapril that can indicate the development of angioedema or potentially life-threatening angioedema. An onset of dry cough should be reported to the provider promptly as it may require discontinuation of the medication to prevent further complications. Frequent urination, tremors, and dizziness are not typically associated with enalapril use and are less likely to be of immediate concern compared to a dry cough in this context.
4. The LPN/LVN is assisting in caring for a client in the telemetry unit who is receiving an intravenous infusion of 1000 mL of 5% dextrose with 40 mEq of potassium chloride. Which occurrence observed on the cardiac monitor indicates the presence of hyperkalemia?
- A. Tall, peaked T waves
- B. ST segment depressions
- C. Shortened P-R intervals
- D. Shortening of the QRS complex
Correct answer: A
Rationale: In hyperkalemia, tall, peaked T waves are a distinct ECG finding. These T waves can be seen as a result of increased serum potassium levels, affecting the repolarization phase of the cardiac action potential. It is crucial for healthcare providers to recognize this ECG change promptly as hyperkalemia can lead to serious cardiac arrhythmias and complications. ST segment depressions, shortened P-R intervals, and shortening of the QRS complex are not typically associated with hyperkalemia. ST segment depressions are more indicative of myocardial ischemia or infarction. Shortened P-R intervals may be seen in conditions like Wolff-Parkinson-White syndrome. Shortening of the QRS complex is associated with conditions affecting the conduction system of the heart, such as bundle branch blocks.
5. The nurse is caring for a client with hypertension who is prescribed enalapril (Vasotec). The nurse should monitor the client for which potential adverse effect?
- A. Hypertension
- B. Hypotension
- C. Tachycardia
- D. Hyperglycemia
Correct answer: B
Rationale: The correct answer is B: Hypotension. Enalapril is an ACE inhibitor that works by dilating blood vessels and reducing blood pressure. Therefore, a potential adverse effect of enalapril is hypotension, not hypertension (choice A), tachycardia (choice C), or hyperglycemia (choice D). Monitoring for hypotension is crucial to prevent complications.
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