HESI LPN
CAT Exam Practice Test
1. The nurse is teaching a class on child care to new parents. Which instruction should be included about the prevention of rotavirus infection in infants who are starting to eat foods?
- A. Keep house pets away from the food preparation area
- B. Avoid feeding infants fresh fruits
- C. Use only lactose-free formulas
- D. Wash hands before any food preparation
Correct answer: D
Rationale: The correct answer is D: Wash hands before any food preparation. Rotavirus is a highly contagious virus that can be prevented by maintaining proper hygiene. Washing hands before handling food can help prevent the spread of infections, including rotavirus. Choices A, B, and C are incorrect because while they are good practices for general hygiene and infant care, they are not specifically targeted at preventing rotavirus infection.
2. During a well-child check-up, what respiratory assessment finding should the nurse anticipate in a 3-year-old?
- A. A resting respiratory rate of 40 breaths per minute
- B. Bronchovesicular breath sounds in the peripheral lung fields
- C. Retractions in the intercostal spaces with each inspiration
- D. High-pitched whistling sounds over the bronchi
Correct answer: A
Rationale: A resting respiratory rate of 40 breaths per minute is within the expected range for a 3-year-old child. This is considered normal in this age group as their respiratory rate is generally higher compared to adults. Bronchovesicular breath sounds in the peripheral lung fields are not an expected finding in a 3-year-old. Retractions in the intercostal spaces with each inspiration indicate increased work of breathing and are abnormal. High-pitched whistling sounds over the bronchi are characteristic of wheezing, which is not typically expected in a healthy 3-year-old during a routine check-up.
3. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
4. A male client with schizophrenia is jerking his neck and smacking his lips. Which finding indicates to the nurse that he is experiencing an irreversible side effect of antipsychotic agents?
- A. Cramping muscular pain
- B. Worming movements of the tongue
- C. Decreased tendon reflexes
- D. Dry oral mucous membranes
Correct answer: B
Rationale: The correct answer is B: Worming movements of the tongue. Worming movements of the tongue, known as tardive dyskinesia, are an irreversible side effect of antipsychotic medications. Tardive dyskinesia is characterized by involuntary, repetitive movements of the tongue, lips, face, trunk, and extremities. Cramping muscular pain (Choice A) is more indicative of dystonia, an extrapyramidal side effect that can be treated effectively with antiparkinsonian medications. Decreased tendon reflexes (Choice C) are not typically associated with irreversible side effects of antipsychotic agents. Dry oral mucous membranes (Choice D) are not specific to irreversible side effects of antipsychotic medications.
5. At 1130, the nurse assumes care of an adult client with diabetes mellitus who was admitted with an infected foot ulcer. After reviewing the client’s electronic health record, which priority nursing action should the nurse implement?
- A. Administer insulin based on the sliding scale
- B. Assess the appearance of the foot wound
- C. Obtain antibiotic peak and trough levels
- D. Initiate hourly measurements of urine output
Correct answer: B
Rationale: Assessing the appearance of the foot wound is the priority action in this scenario. This assessment is crucial to monitor for any signs of infection progression or complications related to the foot ulcer, especially in a client with diabetes mellitus. Administering insulin based on the sliding scale (Choice A) is important but not the immediate priority compared to assessing the foot wound. Obtaining antibiotic peak and trough levels (Choice C) is relevant but not as immediate as assessing the wound for signs of infection. Initiating hourly measurements of urine output (Choice D) is not the priority when compared to assessing the foot wound in a client with an infected foot ulcer.
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