HESI LPN
CAT Exam Practice Questions
Question 1 of 5
A client prescribed warfarin is being taught about dietary modifications by a nurse. Which statement by the client indicates understanding of the teaching?
Correct Answer: B
Rationale: The correct answer is B. Consistency in vitamin K intake is crucial for clients on warfarin to maintain stable anticoagulation levels. Option A is incorrect as vitamin C does not directly interact with warfarin. Option C is incorrect because although leafy greens are high in vitamin K, excessive consumption can affect warfarin's effectiveness. Option D is incorrect as any changes in diet, particularly in vitamin K intake, can impact the efficacy of warfarin.
Question 2 of 5
A client with acute renal failure (ARF) is admitted for uncontrolled type 1 diabetes mellitus and hyperkalemia. The nurse administers an IV dose of regular insulin per sliding scale. Which intervention is the most important for the nurse to include in this client's plan of care?
Correct Answer: A
Rationale: Monitoring cardiac activity is crucial in this scenario because hyperkalemia can lead to serious cardiac dysrhythmias, which can be life-threatening. Regular monitoring of the client's cardiac activity via telemetry allows for early detection of any potential cardiac complications. Maintaining venous access with a normal saline infusion is important for hydration but does not address the immediate risk of cardiac dysrhythmias posed by hyperkalemia. Assessing glucose levels is essential in diabetes management but is not the priority when dealing with hyperkalemia-induced cardiac risks. Evaluating hourly urine output for the return of normal renal function is important in ARF but is not as urgent as monitoring the client's cardiac activity in the context of hyperkalemia.
Question 3 of 5
A male client with cirrhosis has jaundice and pruritus. He tells the nurse that he has been soaking in hot baths at night with no relief of his discomfort. What action should the nurse take?
Correct Answer: D
Rationale: Cooler water and oil-based lotion can help relieve pruritus and improve comfort in clients with cirrhosis experiencing jaundice and pruritus. Hot baths can exacerbate itching, so it is important to suggest cooler showers instead. Choice A is incorrect because symptoms like pruritus can be managed. Choice B is not the most appropriate initial intervention for pruritus related to liver disease. Choice C suggests the use of calamine lotion, which may not be as effective as oil-based lotion for relieving pruritus in this case.
Question 4 of 5
The healthcare provider prescribes potassium chloride 25 mEq in 500 ml D5W to infuse over 6 hours. The available 20 ml vial of potassium chloride is labeled '10 mEq/5 ml.' How many ml of potassium chloride should the nurse add to the IV fluid?
Correct Answer: B
Rationale: To prepare 25 mEq of potassium chloride for the infusion, the nurse should add 5 ml of the 10 mEq/5 ml solution. This concentration provides the required amount of potassium chloride without exceeding the needed volume. Choice A would result in 12.5 mEq, which exceeds the prescribed amount. Choices C and D are incorrect as they do not align with the correct calculation based on the vial concentration.
Question 5 of 5
When gathering subjective data from a client, what intervention should the nurse implement first?
Correct Answer: B
Rationale: Establishing rapport is the initial step the nurse should take when gathering subjective data from a client. Building trust and a good relationship with the client creates an environment where the client feels comfortable sharing accurate and honest information. Listening attentively is important but should come after rapport is established to enhance active listening. Listing problems and clarifying inferences are actions that occur later in the assessment process, after the nurse has established a good rapport and obtained a comprehensive understanding of the client's perspective. Therefore, option B is the correct answer.