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. After a client with leukemia undergoes a bone marrow biopsy and is found to have thrombocytopenia, which nursing assessment is most important following the procedure?
- A. Observe the aspiration site
- B. Assess body temperature
- C. Monitor skin elasticity
- D. Measure urinary output
Correct answer: A
Rationale: The correct answer is to observe the aspiration site. Thrombocytopenia, characterized by a low platelet count, increases the risk of bleeding. Therefore, monitoring the biopsy site for bleeding or hematoma is crucial to ensure early detection and intervention. Assessing body temperature (choice B) is not directly related to the increased bleeding risk associated with thrombocytopenia. Monitoring skin elasticity (choice C) and measuring urinary output (choice D) are important assessments but are not the priority in this situation where bleeding risk needs immediate attention.
3. A male client, admitted to the mental health unit for a somatoform disorder, becomes angry because he cannot have his pain medication. He demands that the nurse call the healthcare provider and threatens to leave the hospital. What action should the nurse take?
- A. Place the client in seclusion per unit guidelines
- B. Administer a PRN prescription for lorazepam (Ativan)
- C. Call security to help ensure staff and client safety
- D. Ask what other methods he uses to deal with pain
Correct answer: C
Rationale: In this scenario, the nurse should prioritize ensuring safety. When a client becomes aggressive and threatens to leave, calling security is crucial to help maintain a safe environment for both staff and the client. Placing the client in seclusion (choice A) is not the appropriate initial action as it may escalate the situation further. Administering lorazepam (choice B) should not be the first response to behavioral issues. Asking about other pain management methods (choice D) is not the immediate priority when safety is at risk.
4. A 13-year-old girl, diagnosed with diabetes mellitus Type 1 at the age of 9, is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of the ketoacidosis?
- A. Ate an extra peanut butter sandwich before gym class
- B. Incorrectly drew up and administered too much insulin
- C. Was not hungry, so she skipped eating lunch
- D. Has had a cold and ear infection for the past two days
Correct answer: B
Rationale: The correct answer is B. Incorrect insulin administration is a common cause of diabetic ketoacidosis. Administering too much insulin can lead to uncontrolled hyperglycemia, where the body starts breaking down fat for energy, resulting in the production of ketones. Choices A, C, and D are less likely to directly cause diabetic ketoacidosis. Eating an extra peanut butter sandwich, skipping lunch, or having a cold and ear infection would not directly lead to the metabolic derangements seen in diabetic ketoacidosis.
5. The nurse assesses an older adult who is newly admitted to a long-term care facility. The client has dry, flaky skin and long thickened fingernails. The client has a medical history of a stroke which resulted in left-sided paralysis and dysphagia. In planning care for the client, which task should the nurse delegate to the unlicensed personnel (UAP)?
- A. Soak and file fingernails
- B. Offer fluids frequently
- C. Monitor skin elasticity
- D. Ambulate in the hallway
Correct answer: A
Rationale: Soaking and filing fingernails is a task that can be delegated to UAP. This task does not require specialized nursing skills and can be safely performed by unlicensed personnel. Offering fluids frequently, monitoring skin elasticity, and ambulating require more skilled assessments and interventions, which are responsibilities of the nurse. The client's dry, flaky skin and long thickened fingernails indicate the need for basic hygiene care, making it appropriate for delegation to unlicensed personnel.
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