HESI LPN
CAT Exam Practice
1. A client with chronic alcoholism is admitted with a decreased serum magnesium level. Which snack option should the nurse recommend to this client?
- A. Cheddar cheese and crackers
- B. Carrot and celery sticks
- C. Beef bologna sausage slices
- D. Dry roasted almonds
Correct answer: D
Rationale: Dry roasted almonds are the most suitable snack option for a client with chronic alcoholism and a decreased serum magnesium level because they are high in magnesium. Magnesium is essential in addressing the deficiency. Cheddar cheese and crackers (Choice A) do not contain as much magnesium as almonds. Carrot and celery sticks (Choice B) are healthy choices but do not provide a significant amount of magnesium. Beef bologna sausage slices (Choice C) are not a good choice as processed meats are not rich in magnesium.
2. A child with heart failure (HF) is taking digitalis. Which sign indicates to the nurse that the child may be experiencing digitalis toxicity?
- A. Tachycardia
- B. Dyspnea
- C. Vomiting
- D. Muscle cramps
Correct answer: C
Rationale: Vomiting is a common sign of digitalis toxicity and should be closely monitored. While tachycardia is a common sign of heart failure, it is not typically associated with digitalis toxicity (Choice A). Dyspnea (Choice B) and muscle cramps (Choice D) are not specific signs of digitalis toxicity and can be present in other conditions. Therefore, the presence of vomiting should raise concerns about digitalis toxicity in the child with heart failure.
3. The nurse is caring for a laboring 22-year-old primigravida following administration of regional anesthesia. In planning care for this client, what nursing intervention has the highest priority?
- A. Raising the side rails and placing the call bell within reach
- B. Teaching the client how to push to decrease the length of the second stage of labor
- C. Timing and recording uterine contractions
- D. Positioning the client for proper distribution of anesthesia
Correct answer: D
Rationale: The highest priority nursing intervention for a laboring client following administration of regional anesthesia is to position the client for proper distribution of anesthesia. Proper positioning ensures effective pain management during labor, optimizing the effects of the regional anesthesia. While raising the side rails and placing the call bell within reach (choice A) is important for safety, teaching the client how to push (choice B) and timing and recording uterine contractions (choice C) are vital aspects of care but are not the highest priority immediately after administering regional anesthesia.
4. A college student brings a dorm roommate to the campus clinic because the roommate has been talking to someone who is not present. The client tells the nurse that her voices are saying, “Kill, Kill.” What question should the nurse ask the client next?
- A. When did these voices begin?
- B. Are you planning to obey the voices?
- C. Have you taken any hallucinogens?
- D. Do you believe the voices are real?
Correct answer: B
Rationale: Assessing whether the client has a plan to act on the voices is critical for evaluating the risk of harm. Asking if the client is planning to obey the voices helps determine the immediate safety concerns. While understanding when the voices began could provide insight into the situation, assessing the intent to act on them is more urgent. Asking about hallucinogen use may be relevant but does not address the immediate safety issue. Inquiring about the client's belief in the reality of the voices is important but does not address the immediate risk of harm.
5. A premature infant weighing 1,200 grams at birth receives a prescription for beractant (Survanta) 120 mg endotracheal now and q6 hr for 24 hr. The recommended dose for beractant is 100 mg/kg birth weight per dose. Single-use vials of Survanta are labeled 100 mg/4 ml. What action should the nurse take?
- A. Give 4.8 ml q6 hr
- B. Notify the healthcare provider that the dose is too high
- C. Notify the healthcare provider that the dose is too low
- D. Give 1.2 ml q6 hr
Correct answer: A
Rationale: The correct answer is to give 4.8 ml q6 hr. To calculate the dose, you divide the prescribed dose of 120 mg by the concentration of Survanta, which is 100 mg per 4 ml. This results in 4.8 ml per dose, as 120 mg ÷ 100 mg/4 ml = 4.8 ml. Option B suggesting to notify the healthcare provider that the dose is too high is incorrect because the calculated dose of 4.8 ml is based on the recommended dose of 100 mg/kg birth weight. Option C suggesting to notify the healthcare provider that the dose is too low is incorrect as the calculated dose is based on the correct dosage calculation. Option D suggesting to give 1.2 ml q6 hr is incorrect because it doesn't align with the correct calculation.
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