ATI LPN
LPN Pharmacology Practice Test
1. A client is receiving morphine for pain. Which of the following assessments is the priority?
- A. Urine output
- B. Pupil reaction
- C. Respiratory rate
- D. Bowel sounds
Correct answer: C
Rationale: The correct answer is C: Respiratory rate. Monitoring the respiratory rate is the priority assessment for a client receiving morphine due to the risk of respiratory depression. Morphine is a potent opioid that can cause respiratory depression, which is a serious adverse effect that can be life-threatening. Assessing the client's respiratory rate is crucial to detect any signs of respiratory depression early and intervene promptly. Assessing urine output is important but not as critical as monitoring for respiratory depression with morphine. Pupil reaction and bowel sounds are also important assessments but do not take precedence over monitoring the respiratory rate when a client is on morphine.
2. A client has a new prescription for nitroglycerin. Which of the following instructions should the nurse include?
- A. Store the medication in a cool, dry place.
- B. Take the medication as directed by the healthcare provider.
- C. Take the medication 30 minutes before meals.
- D. Take the medication at the first sign of chest pain.
Correct answer: D
Rationale: Instructing the client to take nitroglycerin at the first sign of chest pain is crucial for immediate relief of angina symptoms. Nitroglycerin is a fast-acting medication that helps dilate blood vessels, improving blood flow to the heart muscle. Therefore, prompt administration at the onset of chest pain is essential to alleviate anginal episodes effectively. Choices A, B, and C are incorrect because storing the medication properly, taking it as directed, or before meals are not specific instructions for managing acute anginal episodes, which require immediate action for symptom relief.
3. The nurse is assisting in the care of a client with a history of chronic obstructive pulmonary disease (COPD) who is on oxygen therapy. Which action should the nurse take to ensure the client's safety?
- A. Set the oxygen flow rate to 4 liters per minute.
- B. Remove oxygen while the client is eating.
- C. Ensure the client wears a nasal cannula instead of a face mask.
- D. Maintain the oxygen flow rate at the lowest level that relieves hypoxia.
Correct answer: D
Rationale: For clients with COPD, too much oxygen can suppress their drive to breathe, leading to hypoventilation. Therefore, the nurse should maintain the oxygen flow rate at the lowest level that relieves hypoxia to prevent complications while ensuring adequate oxygenation. Setting the oxygen flow rate too high (Choice A) can be detrimental for the client with COPD. Removing oxygen while the client is eating (Choice B) can compromise oxygenation, which is essential even during meals. While nasal cannulas are commonly used, the choice of oxygen delivery device depends on the client's needs; there may be situations where a face mask (Choice C) is more appropriate.
4. A healthcare professional is preparing to administer a unit of packed red blood cells to a client. Which of the following actions should the healthcare professional take?
- A. Prime the blood tubing with normal saline.
- B. Verify the client’s identity using two identifiers.
- C. Infuse the blood rapidly over 30 minutes.
- D. Obtain the client’s vital signs every 4 hours during the transfusion.
Correct answer: B
Rationale: Verifying the client’s identity using two identifiers is a critical patient safety measure to ensure the correct patient receives the blood transfusion. This process involves checking the patient's identity using at least two unique identifiers, such as name, date of birth, or medical record number, to prevent administration errors. Priming the blood tubing with normal saline is necessary to ensure there are no air bubbles in the tubing, but it is not the immediate action required before administering the blood. Infusing packed red blood cells over 30 minutes is generally too rapid and can lead to adverse reactions; a slower rate is recommended for safe administration. Obtaining vital signs every 4 hours during the transfusion is not frequent enough to monitor the client adequately for potential transfusion reactions or complications; vital signs should be monitored more frequently, especially during the initial phase of the transfusion.
5. 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.
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