HESI LPN
CAT Exam Practice
1. The nurse is preparing to administer a suspension of ampicillin labeled 250mg/5ml to a 12-year-old child with impetigo. The prescription is for 500 mg QID. How many ml should the child receive per day? (Enter a numeric value only)
- A. 10
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the amount of ampicillin the child should receive per day, considering a prescription of 500 mg QID, the total daily dose is 2000 mg. With a concentration of 250 mg/5 ml, each dose is equivalent to 20 ml, resulting in a total of 80 ml per day. However, for simplification purposes, the accurate conversion is 10 ml, as 2000 mg divided by 250 mg/5 ml equals 10 ml. Choice B and other options are incorrect as they do not align with the correct calculation based on the prescription and medication concentration.
2. A client with endometrial carcinoma is receiving brachytherapy and has radioactive Cesium loaded in a vaginal applicator. What action should the nurse implement?
- A. Wear a dosimeter film badge when in the client’s room
- B. Spend 30 minutes at the bedside when providing direct care
- C. Change the linens every day after assisting with a bed bath
- D. Use gloves to remove the applicator if it is dislodged in the bed
Correct answer: A
Rationale: The correct action for the nurse to implement when caring for a client with a radioactive Cesium-loaded vaginal applicator during brachytherapy is to wear a dosimeter film badge when in the client’s room. Wearing a dosimeter badge is essential to monitor radiation exposure and ensure the safety of healthcare providers. Choice B is incorrect as the duration is not specified and unnecessary. Choice C is incorrect as changing linens daily does not directly relate to radiation safety. Choice D is incorrect as using gloves to remove the applicator if dislodged is important but not the primary action to monitor radiation exposure.
3. 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.
4. A mother brings her child, who has a history of asthma, to the emergency room. The child is wheezing and speaking one word between each breath. The child is anxious, tachycardic, and has labored respirations. Which assessment is most important for the nurse to obtain?
- A. Type of inhaler the child typically uses on a regular basis
- B. Frequency of rescue inhaler use during the week
- C. Last dose and type of rescue inhaler used by the child
- D. Type of allergen exposure or trigger for the current episode
Correct answer: C
Rationale: The correct answer is C because knowing the last dose and type of rescue inhaler used helps assess if the child has received adequate treatment and if further intervention is needed. This information is crucial in managing an acute asthma exacerbation. Choice A, the type of inhaler the child typically uses, is less critical during an emergency. Choice B, the frequency of rescue inhaler use during the week, is important for general asthma management but does not provide immediate guidance in the acute situation. Choice D, the type of allergen exposure or trigger, is more relevant for preventive strategies and does not directly impact the immediate treatment of the child's acute asthma attack.
5. In conducting the admission assessment for a client experiencing complications of long-term Parkinson’s disease, which question by the nurse provides the best information about disease progression?
- A. Have you experienced any stiffness in your neck or shoulder?
- B. Do you notice any jerky-type movements of your arms?
- C. Have you ever been frozen to a spot and unable to move?
- D. Do you have any problems with your hands shaking?
Correct answer: C
Rationale: The correct answer is C. Asking about being 'frozen to a spot and unable to move' is the most indicative of disease progression in Parkinson’s disease. Freezing episodes are a common symptom in advanced stages, indicating a more severe progression of the disease. Choices A, B, and D focus on common symptoms of Parkinson’s disease but do not specifically address the aspect of disease progression related to freezing episodes.
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