HESI RN
HESI RN Exit Exam
1. A client is admitted for cellulitis surrounding an insect bite on the lower right arm, and intravenous (IV) antibiotic therapy is prescribed. Which action should the nurse implement before performing venipuncture?
- A. Lower the right arm below the level of the heart.
- B. Elevate the right arm on a pillow.
- C. Apply a tourniquet above the insertion site.
- D. Apply a warm compress to the insertion site.
Correct answer: A
Rationale: Before performing venipuncture for IV therapy, the nurse should lower the right arm below the level of the heart. Lowering the arm helps dilate the veins, making it easier to locate and access a suitable vein for the procedure. Elevating the arm on a pillow, applying a tourniquet above the insertion site, or applying a warm compress to the insertion site are not appropriate actions before venipuncture as they can affect the venous blood flow and make the procedure more challenging.
2. The charge nurse of the critical care unit informed at the beginning of the shift that a less than optimal number of registered nurses would be working that shift. In planning assignments, which client should receive the most care hours by a registered nurse?
- A. A 34-year-old admitted today after an emergency appendectomy who has a peripheral intravenous catheter and a Foley catheter.
- B. A 48-year-old marathon runner with a central venous catheter experiencing nausea and vomiting due to electrolyte disturbance following a race.
- C. A 63-year-old chain smoker with chronic bronchitis receiving oxygen via nasal cannula and a saline-locked peripheral intravenous catheter.
- D. An 82-year-old client with Alzheimer's disease and a newly fractured femur with a Foley catheter and soft wrist restraints applied.
Correct answer: D
Rationale: The 82-year-old client with Alzheimer's disease and a newly fractured femur should receive the most care hours by a registered nurse because they are at the highest risk for injury and complications. The client's age, diagnosis of Alzheimer's disease, and the presence of a newly fractured femur along with the Foley catheter and wrist restraints indicate a need for close monitoring and care. Choice A is less critical as the client is stable post-appendectomy. Choice B, though experiencing symptoms, is not at the same level of risk as the client in Choice D. Choice C, while requiring oxygen support, does not have the same level of acuity and complexity as the client in Choice D.
3. After multiple attempts to stop drinking, an adult male is admitted to the medical intensive care unit (MICU) with delirium tremens. He is tachycardic, diaphoretic, restless, and disoriented. Which finding indicates a life-threatening condition?
- A. Widening QRS complexes and flat T waves
- B. Tachycardia and elevated blood pressure
- C. Restlessness and anxiety
- D. Diaphoresis and dehydration
Correct answer: A
Rationale: The correct answer is A: Widening QRS complexes and flat T waves. In the context of an adult male with delirium tremens and symptoms like tachycardia, diaphoresis, restlessness, and disorientation, the presence of widening QRS complexes and flat T waves on an ECG suggests severe electrolyte imbalance, particularly hypokalemia. This severe electrolyte imbalance can lead to life-threatening arrhythmias such as ventricular tachycardia or fibrillation. Tachycardia and elevated blood pressure (choice B) can be expected in delirium tremens but do not directly indicate a life-threatening condition as widening QRS complexes and flat T waves do. Restlessness and anxiety (choice C) are common symptoms of delirium tremens but do not specifically signify a life-threatening condition. Diaphoresis and dehydration (choice D) are also common in delirium tremens but do not directly point towards a life-threatening electrolyte imbalance as widening QRS complexes and flat T waves do.
4. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding is most concerning?
- A. Serum glucose of 500 mg/dL
- B. Serum glucose of 600 mg/dL
- C. Serum potassium of 5.5 mEq/L
- D. Serum bicarbonate of 18 mEq/L
Correct answer: D
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with DKA as it indicates metabolic acidosis, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis. A low serum bicarbonate level is a key indicator of this acid-base imbalance. Elevated serum glucose levels are expected in DKA but are managed through insulin therapy. Serum potassium levels can fluctuate in DKA due to insulin deficiency, but a value of 5.5 mEq/L is not as immediately concerning as metabolic acidosis. Therefore, the most critical finding in this scenario is the low serum bicarbonate level.
5. A client with a history of chronic kidney disease (CKD) is receiving erythropoietin therapy. Which assessment finding is most concerning?
- A. Increased fatigue
- B. Headache
- C. Elevated blood pressure
- D. Low urine output
Correct answer: C
Rationale: In a client with chronic kidney disease receiving erythropoietin therapy, elevated blood pressure is the most concerning assessment finding. Erythropoietin can increase red blood cell production, leading to thicker blood, which in turn can elevate blood pressure. Elevated blood pressure in this scenario may indicate worsening hypertension, which requires prompt intervention to prevent complications such as stroke, heart attack, or further kidney damage. Increased fatigue (choice A) is a common symptom in CKD patients and can be expected with erythropoietin therapy. Headache (choice B) can occur but is less concerning than elevated blood pressure in this context. Low urine output (choice D) is a significant finding in CKD, but in a client receiving erythropoietin, elevated blood pressure takes precedence due to its potential for immediate adverse effects.
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