ATI LPN
Pharmacology for LPN
1. 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.
2. The nurse is preparing to administer an intravenous dose of potassium chloride to a client with hypokalemia. The nurse should monitor for which potential complication?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hypercalcemia
Correct answer: A
Rationale: When administering potassium chloride to a client with hypokalemia, the nurse should monitor for hyperkalemia. Potassium chloride supplementation aims to increase potassium levels in individuals with hypokalemia. However, excessive administration can lead to hyperkalemia, which can be a serious and potentially life-threatening complication. Monitoring potassium levels is crucial to prevent this adverse outcome. Hypokalemia (Choice B) is the condition being treated, so it is not a complication of treatment. Hypernatremia (Choice C) refers to high sodium levels and is not directly related to the administration of potassium chloride. Hypercalcemia (Choice D) is an elevated calcium level and is not a common complication associated with potassium chloride administration in hypokalemia.
3. 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.
4. The client at risk for thrombophlebitis receives reinforcement from the LPN/LVN regarding measures to minimize its occurrence. Which statement by the client indicates an understanding of this information?
- A. I should avoid sitting for prolonged periods.
- B. I will take frequent walks and avoid prolonged bed rest.
- C. I should drink plenty of fluids to stay hydrated.
- D. I will use compression stockings as advised by my doctor.
Correct answer: B
Rationale: The correct answer is B. Taking frequent walks and avoiding prolonged bed rest are essential measures to promote circulation and reduce the risk of thrombophlebitis. Physical activity helps prevent blood from pooling and clotting in the veins, thus decreasing the likelihood of thrombophlebitis development. Choice A is incorrect because while avoiding prolonged sitting is important, it is not as effective as engaging in physical activity. Choice C is not directly related to preventing thrombophlebitis. Choice D, using compression stockings, is a helpful measure but not as effective as regular physical activity in preventing thrombophlebitis.
5. Prior to a dipyridamole thallium scan, what substance should the LPN/LVN ensure the client has not consumed?
- A. Caffeine
- B. Fatty meal
- C. Excess sugar
- D. Milk products
Correct answer: A
Rationale: Caffeine should be avoided before a dipyridamole thallium scan as it can interfere with the test results. Caffeine is a stimulant that can affect the heart rate and may lead to inaccurate findings during the scan. Fatty meals, excess sugar, and milk products do not specifically interfere with the dipyridamole thallium scan procedure. Therefore, it is essential for the LPN/LVN to check and ensure that the client has not consumed caffeine prior to the procedure to obtain accurate diagnostic results.
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