ATI LPN
LPN Pharmacology Assessment A
1. The LPN/LVN is assisting in the care of a client with a diagnosis of heart failure who is receiving digoxin (Lanoxin). Which laboratory result should the nurse monitor closely?
- A. Serum sodium
- B. Serum potassium
- C. Serum calcium
- D. Serum glucose
Correct answer: B
Rationale: The correct answer is serum potassium. Monitoring serum potassium levels is crucial when a client is receiving digoxin (Lanoxin) because low potassium levels can increase the risk of digoxin toxicity. Digoxin and low potassium levels can lead to serious cardiac complications, such as arrhythmias. Therefore, close monitoring of serum potassium is essential to prevent adverse effects and ensure the safe administration of digoxin in clients with heart failure. Serum sodium, serum calcium, and serum glucose levels are also important laboratory values to monitor in clients with heart failure, but they are not directly associated with the risk of digoxin toxicity. Monitoring these values helps in assessing overall health status, fluid balance, and metabolic functions in the client.
2. The number of kilocalories provided by a food that contains 22g of fat is:
- A. 88
- B. 132
- C. 154
- D. 198
Correct answer: D
Rationale: The correct answer is D. Fat provides 9 kcal per gram, so 22 grams of fat will provide 198 kcal (22g * 9 kcal/g = 198 kcal). Choice A (88) is incorrect because it miscalculates the kcalories. Choice B (132) is incorrect as it does not consider the correct kcaloric value of fat. Choice C (154) is incorrect as it also does not calculate the kcalories accurately based on the fat content.
3. The client is prescribed clozapine (Clozaril), and the nurse plans to educate them about its purpose. Which statement should the nurse provide?
- A. It will help you function better in the community.
- B. The medication will help you think more clearly.
- C. You will be able to cope with your symptoms.
- D. It will improve your grooming and hygiene.
Correct answer: B
Rationale: Clozapine (Clozaril) is an antipsychotic medication that is known to improve cognitive function and thought clarity in individuals with schizophrenia. It primarily helps in managing symptoms related to thought processes rather than focusing on community function, coping with symptoms, or grooming and hygiene.
4. A nurse is preparing to administer ampicillin 500 mg in 50 mL of dextrose 5% in water (D5W) to infuse over 15 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the nurse set the manual IV infusion to deliver?
- A. 30 gtt/min
- B. 32 gtt/min
- C. 33 gtt/min
- D. 35 gtt/min
Correct answer: C
Rationale: Calculation: 10 gtt/mL × 50 mL ÷ 15 min = 33.33, rounded to 33 gtt/min. This ensures proper delivery of the medication over the prescribed time. Choice A is incorrect because it does not factor in the precise calculation based on the given data. Choice B is incorrect as it does not reflect the accurate rate of infusion required. Choice D is incorrect as it does not align with the correct calculation based on the drop factor and infusion parameters provided in the question.
5. Why should small children ride in the backseat of a vehicle?
- A. They are much less likely to be ejected from the vehicle.
- B. The back of the front seat will provide a cushion during a crash.
- C. They can experience severe injury or death if the airbag deploys.
- D. Their legs are highly prone to injury from striking the dashboard.
Correct answer: C
Rationale: Small children should ride in the backseat of a vehicle primarily to avoid severe injury or death that may occur if the airbag deploys. In the event of a crash, the force of an airbag deployment can be dangerous for a child seated in the front seat. Placing them in the backseat reduces the risk of serious harm from airbag impact and is a safer seating position for young passengers.
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