HESI LPN
CAT Exam Practice
1. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?
- A. Hypokalemia
- B. Ketonuria
- C. Peripheral edema
- D. Elevated blood pressure
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.
2. A client who is newly diagnosed with type 2 diabetes mellitus (DM) receives a prescription for metformin (Glucophage) 500 mg PO twice daily. What information should the nurse include in this client’s teaching plan? (Select all that apply.)
- A. Take an additional dose for signs of hyperglycemia
- B. Recognize signs and symptoms of hypoglycemia.
- C. Report persistent polyuria to the healthcare provider.
- D. Use sliding scale insulin for finger stick glucose elevation.
Correct answer: D
Rationale: The correct answer is D. Metformin does not require additional doses for hyperglycemia, and sliding scale insulin is not typically used with metformin. It is important for the client to recognize signs and symptoms of hypoglycemia, report persistent polyuria to the healthcare provider, and take the medication with meals. Teaching the client to use sliding scale insulin for finger stick glucose elevation is not appropriate in this case because metformin is the prescribed medication, and its mechanism of action differs from insulin therapy. The client should be educated on the importance of taking metformin with meals to reduce gastrointestinal side effects and to report any persistent polyuria, which could indicate poor blood sugar control.
3. Two weeks following a Billroth II (gastrojejunostomy), a client develops nausea, diarrhea, and diaphoresis after every meal. When the nurse develops a teaching plan for this client, which expected outcome statement is the most relevant?
- A. Describes a schedule for antacid use in combination with other prescribed medications
- B. Selects a pattern of small meals interspersed with fluid intake
- C. Commits to engaging in a variety of stress reduction techniques
- D. Expresses a commitment to decrease nicotine intake
Correct answer: B
Rationale: The symptoms described are indicative of dumping syndrome, a common complication following a Billroth II procedure. Dumping syndrome presents with symptoms such as nausea, diarrhea, and diaphoresis after meals. To manage these symptoms effectively, the client should opt for small, frequent meals and avoid consuming fluids along with meals. Choice A is inaccurate because antacid use does not directly address the symptoms of dumping syndrome. Choice C is irrelevant as stress reduction techniques are not the primary intervention for dumping syndrome. Choice D is unrelated to the symptoms experienced by the client, making it an inappropriate choice.
4. The nurse is preparing an older client for discharge following cataract extraction. Which instruction should be included in the discharge teaching?
- A. Do not read with direct lighting for 6 weeks
- B. Avoid straining during stool passage, bending, or lifting heavy objects
- C. Irrigate conjunctiva with ophthalmic saline after applying antibiotic ointment
- D. Limit exposure to sunlight during the first 2 weeks while the cornea is healing
Correct answer: B
Rationale: The correct instruction to include in the discharge teaching for a client following cataract extraction is to 'Avoid straining during stool passage, bending, or lifting heavy objects.' This is crucial to prevent increased intraocular pressure after surgery, which can be harmful. Reading with direct lighting can strain the eyes but is not the primary concern post-cataract surgery. Irrigating the conjunctiva before applying antibiotic ointment is not a standard practice and may not be necessary. While limiting sunlight exposure is important for eye protection, it is secondary to avoiding activities that can increase intraocular pressure.
5. An adult male is admitted to the intensive care unit because he experienced a sudden onset of sharp chest pain and shortness of breath earlier today. Following an emergent pulmonary angiogram, the client is diagnosed with a pulmonary embolism. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor signs of increased bleeding
- B. Instruct on the use of incentive spirometry
- C. Observe for confusion and restlessness
- D. Administer intravenous opioids for severe pain
Correct answer: A
Rationale: In a patient diagnosed with a pulmonary embolism, the most critical intervention is to monitor for signs of increased bleeding. Pulmonary embolism treatment often involves anticoagulation therapy, which increases the risk of bleeding. Monitoring for signs of bleeding such as bruising, petechiae, hematuria, or gastrointestinal bleeding is essential to prevent complications. Instructing on the use of incentive spirometry can be beneficial for preventing pulmonary complications but is not as urgent as monitoring for bleeding. Observing for confusion and restlessness may indicate hypoxia but is not the most crucial intervention in this scenario. Administering intravenous opioids for severe pain might be necessary but is not the priority compared to monitoring for bleeding, which is directly related to the treatment for pulmonary embolism.
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