HESI RN
HESI RN CAT Exit Exam
1. A client with an electrical burn on the forearm asks the nurse why there is no feeling of pain from the burn. During the dressing change, the nurse determines that the burn is dry, waxy, and white. What information should the nurse provide this client?
- A. The depth of tissue destruction is minor
- B. Pain is interrupted due to nerve compression
- C. The full thickness burn has destroyed the nerves
- D. Second-degree burns are not usually painful
Correct answer: C
Rationale: The correct answer is C: 'The full thickness burn has destroyed the nerves.' In full thickness burns, also known as third-degree burns, the nerve endings are destroyed, leading to a lack of pain sensation at the site of the burn. The description of the burn as dry, waxy, and white indicates a full thickness burn. Choices A, B, and D are incorrect because they do not explain the absence of pain in full thickness burns. Choice A is incorrect as a full-thickness burn involves significant tissue destruction. Choice B is incorrect because nerve compression would not explain the lack of pain in this context. Choice D is incorrect because second-degree burns, unlike full-thickness burns, are painful due to nerve endings being intact.
2. The nurse is caring for a client who is receiving a continuous intravenous infusion of heparin. Which laboratory value should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. Hemoglobin level
Correct answer: C
Rationale: The correct answer is C. Partial thromboplastin time (PTT) is the laboratory value that should be monitored to evaluate the effectiveness of heparin therapy. PTT reflects the intrinsic pathway of coagulation and is specifically sensitive to heparin's anticoagulant effects. Monitoring the PTT helps ensure that the client is within the therapeutic range to prevent clot formation without increasing the risk of bleeding. Choices A, B, and D are incorrect because while they are important laboratory values in other contexts, they are not specifically used to monitor the effectiveness of heparin therapy.
3. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
4. A nurse is assessing the learning needs of a client who is diagnosed with Addison's disease. Which statement indicates that the client needs further teaching?
- A. I should take my medications daily to replace necessary hormones
- B. I need to eat a diet high in protein and carbohydrates
- C. I should avoid drinking fluids with caffeine
- D. I should notify my healthcare provider if I start feeling dizzy
Correct answer: B
Rationale: The correct answer is B. A diet high in protein and carbohydrates is not specifically required for Addison's disease. The focus should be on maintaining a balanced diet that is rich in fruits, vegetables, whole grains, and adequate protein sources. Choice A is correct as adherence to medication therapy is crucial in managing Addison's disease. Choice C is correct as caffeine can exacerbate symptoms of Addison's disease. Choice D is correct as dizziness can be a sign of adrenal crisis in Addison's disease, and prompt notification of healthcare providers is essential.
5. The nurse is making assignments for a new graduate from a practical nursing program who is orienting to the unit. Because the unit is particularly busy this day, there will be little time to provide supervision of this new employee. Which client is the best for the nurse to assign to this newly graduated practical nurse?
- A. Whose discharge has been delayed because of a postoperative infection
- B. With poorly controlled type 2 diabetes who is on a sliding scale for insulin administration
- C. Newly admitted with a head injury who requires frequent assessments
- D. Receiving IV heparin that is regulated based on protocol
Correct answer: A
Rationale: The correct answer is A because a client with a stable infection requires less supervision and is suitable for the new nurse. Choice B involves insulin administration for a client with poorly controlled diabetes, which may require more experience and supervision. Choice C involves a newly admitted patient with a head injury who requires frequent assessments, indicating a need for close monitoring. Choice D involves a patient receiving IV heparin, which requires precise monitoring and adjustment based on protocol, making it a higher-risk assignment for a new nurse without close supervision.
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