HESI LPN
CAT Exam Practice
1. While a patient is receiving beta-1b interferon every other day for multiple sclerosis, which serum laboratory test findings should the nurse monitor to assess for possible bone marrow suppression caused by the medication? (Select all that apply)
- A. Platelet count
- B. White blood cell count (WBC)
- C. Sodium and potassium
- D. Red blood cell count (RBC)
Correct answer: A
Rationale: Beta-1b interferon can lead to bone marrow suppression, impacting blood cell production. Therefore, monitoring the platelet count, white blood cell count (WBC), and red blood cell count (RBC) is essential. Platelet count is a direct indicator of bone marrow function and can show early signs of bone marrow suppression. While sodium, potassium, and albumin/protein levels are important for overall health assessment, they are not directly associated with bone marrow suppression caused by the medication.
2. A client with active tuberculosis (TB) is receiving isoniazid (INH) and rifampin (RMP) daily, so direct observation therapy (DOT) is initiated while the client is hospitalized. Which instruction should the nurse provide this client?
- A. Describe feelings about taking daily medications
- B. Take medications in the presence of the nurse
- C. Notify the nurse after self-medication is completed
- D. Keep a daily record of all medications taken
Correct answer: B
Rationale: The correct instruction for the nurse to provide the client undergoing direct observation therapy for TB is to take medications in the presence of the nurse. This approach ensures that the client is actually taking the medications as prescribed, reducing the risk of noncompliance. Choice A is incorrect because the focus should be on ensuring the client physically takes the medications rather than discussing feelings. Choice C is incorrect as it does not ensure direct observation. Choice D is incorrect because self-reporting or keeping a record does not guarantee that the client is actually taking the medications.
3. A client in the intensive care unit is being mechanically ventilated, has an indwelling urinary catheter in place, and is exhibiting signs of restlessness. Which action should the nurse take first?
- A. Review the heart rhythm on cardiac monitors
- B. Check urinary catheter for obstruction
- C. Auscultate bilateral breath sounds
- D. Give PRN dose of lorazepam (Ativan)
Correct answer: B
Rationale: When a client in the intensive care unit is mechanically ventilated, has an indwelling urinary catheter, and is restless, the priority action is to check the urinary catheter for obstruction. Restlessness in this context could be due to a blocked catheter causing discomfort or urinary retention, which needs immediate attention to prevent complications. Reviewing the heart rhythm on cardiac monitors can be important but is not the priority in this scenario. Auscultating bilateral breath sounds is also important in a ventilated client but addressing the potential immediate issue of a blocked catheter takes precedence. Giving a PRN dose of lorazepam should not be the first action without addressing the underlying cause of restlessness.
4. A male client who fell into the lake while fishing and was submerged for about 3 min was successfully resuscitated by his friends. He was brought to the Emergency Department for evaluation and was admitted for a 24-hour uneventful hospital stay. What follow-up instruction should the nurse give?
- A. Avoid smoke-filled environments
- B. Seek medical care promptly if a fever develops
- C. Increase oral fluids if a cough becomes productive
- D. Schedule frequent rest periods
Correct answer: B
Rationale: After being submerged in water, the client should be instructed to seek medical care promptly if a fever develops since complications may arise later. Choices A, C, and D are not directly related to the potential complications from submersion in water and are therefore incorrect. Avoiding smoke-filled environments, increasing oral fluids for a productive cough, and scheduling frequent rest periods are not the priority concerns in this scenario.
5. Following a thyroidectomy, a client experiences tetany. The nurse should expect to administer which intravenous medication?
- A. Sodium iodide solution
- B. Levothyroxine sodium (Synthroid)
- C. Calcium gluconate
- D. Propranolol (Inderal)
Correct answer: C
Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.
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