HESI LPN
HESI CAT Exam
1. After a motor vehicle collision, a client is admitted to the medical unit with acute adrenal insufficiency (Addisonian crisis). Which prescription should the nurse implement?
- A. Determine serum glucose levels
- B. Withhold potassium additives to IV fluids
- C. Give IV corticosteroid replacement
- D. Prepare to initiate IV vasopressors
Correct answer: C
Rationale: In a client with acute adrenal insufficiency (Addisonian crisis) following a motor vehicle collision, the priority intervention is to administer IV corticosteroid replacement. This is crucial to manage the crisis by replacing the deficient cortisol. Determining serum glucose levels (Choice A) may be important but is not the immediate priority in this situation. Withholding potassium additives to IV fluids (Choice B) is not indicated and may exacerbate electrolyte imbalances. Initiating IV vasopressors (Choice D) is not the primary treatment for acute adrenal insufficiency and should be reserved for managing hypotension that is unresponsive to corticosteroid therapy.
2. The nurse receives change of shift report on a group of clients for the upcoming shift. A client with which condition requires the most immediate attention by the nurse?
- A. Gunshot wound three hours ago with dark drainage of 2 cm on the dressing
- B. Mastectomy 2 days ago with 50 ml bloody drainage in the Jackson-Pratt drain
- C. Collapsed lung after a fall 8 hours ago with 100 ml blood in the chest tube collection container
- D. Abdominal-perineal resection 2 days ago with no drainage on dressing and fever and chills
Correct answer: C
Rationale: A collapsed lung with significant blood accumulation requires immediate attention to prevent respiratory compromise. Option A may also require attention, but the immediate threat to airway and breathing in option C takes precedence over the others. Option B has expected drainage after a mastectomy, and option D's fever and chills, while concerning, do not pose an immediate life-threatening risk as in option C.
3. An adult client with a broken femur is transferred to the medical-surgical unit to await surgical internal fixation after the application of an external traction device to stabilize the leg. An hour after an opioid analgesic was administered, the client reports muscle spasms and pain at the fracture site. While waiting for the client to be transported to surgery, which action should the nurse implement?
- A. Observe for signs of deep vein thrombosis.
- B. Administer a PRN dose of a muscle relaxant.
- C. Check the client’s most recent electrolyte values.
- D. Reduce the weight on the traction device.
Correct answer: B
Rationale: The correct answer is B: Administer a PRN dose of a muscle relaxant. Muscle spasms and pain might be relieved by muscle relaxants, which are appropriate before surgery. Choice A is incorrect because the client is experiencing muscle spasms, not signs of deep vein thrombosis. Choice C is not the most immediate action needed in this situation. Choice D is incorrect because reducing the weight on the traction device would not directly address the muscle spasms and pain reported by the client.
4. When caring for a client with diabetes insipidus (DI), it is most important for the nurse to include frequent assessment for which conditions in the client’s plan of care?
- A. Dry mucous membranes, hypotension
- B. Decreased appetite, headache
- C. Nausea and vomiting, muscle weakness
- D. Elevated blood pressure, petechiae
Correct answer: A
Rationale: Dry mucous membranes and hypotension are key indicators of dehydration in clients with diabetes insipidus. The excessive urination associated with DI can lead to fluid loss, resulting in dehydration. Therefore, monitoring for signs such as dry mucous membranes and hypotension is crucial to assess the client's hydration status. Choices B, C, and D are not directly related to the characteristic symptoms of DI and are less relevant in the context of this condition. Decreased appetite and headache (Choice B) are nonspecific symptoms that may occur in various conditions. Nausea, vomiting, and muscle weakness (Choice C) are not typical manifestations of DI. Elevated blood pressure and petechiae (Choice D) are not commonly associated with DI; instead, hypotension is more commonly observed due to volume depletion.
5. The nurse is assessing a client with Addison's disease who is weak, dizzy, disoriented, and has dry oral mucous membranes, poor skin turgor, and sunken eyes. Vital signs are blood pressure 94/44, heart rate 123 beats/minute, respiration 22 breaths/minute. Which intervention should the nurse implement first?
- A. Assess extremity strength and resistance
- B. Report a sodium level of 132 mEq/L or mmol/L (SI units)
- C. Measure and record the cardiac QRS complex
- D. Check current finger stick glucose
Correct answer: D
Rationale: The client’s symptoms suggest possible adrenal crisis or hypoglycemia. Checking glucose is a priority to rule out hypoglycemia, which requires immediate intervention. The client is presenting with symptoms indicative of hypoglycemia, which can be life-threatening if not promptly addressed. Assessing extremity strength, reporting sodium levels, or measuring the cardiac QRS complex are not the most urgent actions in this scenario.
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