HESI RN
HESI 799 RN Exit Exam Capstone
1. A client with diabetic ketoacidosis (DKA) is receiving an insulin infusion. Which finding indicates that the treatment is effective?
- A. Potassium level of 4.0 mEq/L.
- B. Blood glucose level of 180 mg/dL.
- C. Urine output of 50 mL/hour.
- D. Absence of ketones in the urine.
Correct answer: D
Rationale: The correct answer is D: Absence of ketones in the urine. In a client with diabetic ketoacidosis (DKA) receiving an insulin infusion, the absence of ketones in the urine indicates that ketoacidosis is resolving. This is a crucial finding as it shows that the insulin therapy is effectively addressing the metabolic imbalance causing DKA. Choices A, B, and C are incorrect: A potassium level of 4.0 mEq/L is within normal range but does not directly reflect the resolution of DKA; a blood glucose level of 180 mg/dL, while improved, is still high and does not specifically indicate the resolution of ketoacidosis; urine output of 50 mL/hour is within normal limits but does not directly point to the resolution of DKA.
2. What pathophysiological events occur sequentially in the development of atherosclerosis?
- A. Foam cells release growth factors.
- B. Smooth muscle grows over fatty streaks creating fibrous plaques.
- C. Macrophages consume low-density lipoprotein (LDL) and create foam cells.
- D. Arterial endothelium injury causes inflammation.
Correct answer: D
Rationale: The correct sequence of pathophysiological events in the development of atherosclerosis starts with arterial endothelium injury causing inflammation. This inflammation triggers the formation of foam cells by macrophages consuming low-density lipoprotein (LDL). Subsequently, smooth muscle grows over fatty streaks, creating fibrous plaques. Therefore, option D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate chronological order of events in the pathogenesis of atherosclerosis.
3. An adolescent with major depressive disorder has been taking duloxetine (Cymbalta) for the past 12 days. Which assessment finding requires immediate follow-up?
- A. Increased appetite
- B. Describes life without purpose
- C. Exhibits mood swings
- D. Complains of insomnia
Correct answer: B
Rationale: An adolescent expressing 'life without purpose' after taking duloxetine (Cymbalta) may be indicating suicidal ideation, which requires immediate attention. The initial period of antidepressant treatment can increase the risk of suicidal thoughts, especially in younger populations. Increased appetite (Choice A) is a common side effect of duloxetine and may not require immediate follow-up. Mood swings (Choice C) and insomnia (Choice D) are also possible side effects of the medication but are not as urgent as addressing suicidal ideation.
4. What are the primary pathophysiological mechanisms responsible for ascites in liver failure?
- A. Decreased liver enzymes.
- B. Increased hydrostatic pressure in portal circulation.
- C. High bilirubin levels.
- D. Fluid shifts due to decreased serum proteins.
Correct answer: B
Rationale: The correct answer is B: Increased hydrostatic pressure in portal circulation. Ascites in liver failure is primarily caused by fluid shifts from the intravascular space to the interstitial space due to increased hydrostatic pressure in the portal circulation. Choice A is incorrect as ascites is not caused by decreased liver enzymes. Choice C is incorrect as high bilirubin levels are not the primary mechanism for ascites in liver failure. Choice D is incorrect as fluid shifts in ascites are due to decreased serum proteins, not increased serum proteins.
5. A client with a head injury reports severe nausea. What is the nurse's priority action?
- A. Administer anti-nausea medication as prescribed.
- B. Prepare the client for a CT scan.
- C. Elevate the head of the bed and provide an emesis basin.
- D. Notify the healthcare provider immediately.
Correct answer: D
Rationale: Severe nausea in a client with a head injury may be a sign of increased intracranial pressure. The nurse should notify the healthcare provider immediately to ensure timely intervention, as increased pressure can lead to further complications such as brain herniation. Administering anti-nausea medication or preparing for a CT scan may delay necessary treatment for the underlying cause of the nausea, which could be related to the head injury. Elevating the head of the bed and providing an emesis basin may help manage symptoms but should not be the priority over addressing the potential increase in intracranial pressure.
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