HESI LPN
CAT Exam Practice Test
1. A client who had a cerebrovascular accident (CVA) is paralyzed on the left side of the body and has developed a Stage II pressure ulcer on the left hip. Which nursing diagnosis describes this client’s current health status?
- A. Risk for impaired tissue integrity related to impaired physical mobility
- B. Impaired skin integrity related to altered circulation and pressure
- C. Ineffective tissue perfusion related to inability to move self in bed
- D. Impaired physical mobility related to the left-side paralysis
Correct answer: B
Rationale: The correct answer is B: 'Impaired skin integrity related to altered circulation and pressure.' This nursing diagnosis is the most appropriate as it directly addresses the Stage II pressure ulcer on the left hip, which is caused by altered circulation and pressure due to the client's left-side paralysis. Choice A is incorrect because it focuses on the risk for impaired tissue integrity rather than the current issue of impaired skin integrity. Choice C is incorrect as ineffective tissue perfusion is not the primary issue in this scenario. Choice D is incorrect as it only addresses the left-side paralysis and not the pressure ulcer or altered circulation.
2. 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?
- A. 12.5
- B. 5
- C. 10
- D. 20
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.
3. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: D
Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.
4. While eating at a restaurant, a gravid woman begins to choke and is unable to speak. What action should the nurse who witnesses the event take?
- A. Cardiopulmonary resuscitation with uterine tilt
- B. The Heimlich maneuver using chest thrusts
- C. The Heimlich maneuver using subdiaphragmatic thrusts
- D. Call 911 immediately then begin cardiopulmonary resuscitation
Correct answer: C
Rationale: The correct action for the nurse to take when a pregnant woman is choking and unable to speak is to perform the Heimlich maneuver using subdiaphragmatic thrusts. This technique is recommended for a pregnant woman to prevent harm to the fetus. Option A, cardiopulmonary resuscitation with uterine tilt, is not indicated for a choking episode. Option B, the Heimlich maneuver using chest thrusts, can potentially harm the gravid uterus. Option D, calling 911 immediately before providing assistance, can lead to a delay in addressing the immediate choking emergency.
5. The nurse implements a tertiary prevention program for type 2 diabetes in a rural health clinic. Which outcome indicates that the program was effective?
- A. Clients who developed disease complications promptly received rehabilitation
- B. More than 50% of at-risk clients were diagnosed early in their disease process
- C. Only 30% of clients did not attend self-management education sessions
- D. Average client scores improved on a specific risk factor knowledge test
Correct answer: A
Rationale: The correct answer is A because in tertiary prevention, the focus is on managing complications and providing rehabilitation. Choice B is more aligned with primary prevention as it focuses on early diagnosis. Choice C's attendance in education sessions is not a direct indicator of managing complications. Choice D's improvement in knowledge does not directly measure the program's effectiveness in managing complications.
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