HESI RN
HESI RN Exit Exam 2023
1. A client with diabetes mellitus is admitted with a blood glucose level of 600 mg/dl and is unresponsive. Which laboratory value is most concerning?
- A. Serum potassium of 3.0 mEq/L
- B. Serum glucose of 200 mg/dl
- C. Serum pH of 7.30
- D. Serum sodium of 135 mEq/L
Correct answer: C
Rationale: In a client with Hyperosmolar Hyperglycemic State (HHS), a serum pH of 7.30 is the most concerning value as it indicates acidosis, a life-threatening condition that requires immediate intervention. Choices A, B, and D are not the most concerning in this scenario. A low serum potassium level (Choice A) may be expected due to cellular shift in hyperglycemia, a serum glucose level of 200 mg/dl (Choice B) is not as concerning compared to the extremely high initial glucose level, and a serum sodium level of 135 mEq/L (Choice D) is within the normal range and not the immediate priority.
2. A client's subjective data includes dysuria, urgency, and urinary frequency. What action should the nurse implement next?
- A. Collect a clean-catch specimen
- B. Administer prescribed antibiotics
- C. Perform a bladder scan
- D. Increase the client's fluid intake
Correct answer: A
Rationale: The correct action for the nurse to implement next is to collect a clean-catch specimen. This is essential to diagnose the cause of the client's symptoms accurately before initiating any treatment. Administering antibiotics (Choice B) without confirming the diagnosis through a specimen collection can be inappropriate and potentially harmful. Performing a bladder scan (Choice C) may not provide the necessary information to identify the specific cause of the symptoms. Increasing the client's fluid intake (Choice D) is a general recommendation and may not address the underlying issue causing the symptoms.
3. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value requires immediate intervention?
- A. Serum ammonia level of 80 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Serum sodium level of 135 mEq/L
- D. Prothrombin time of 18 seconds
Correct answer: D
Rationale: The correct answer is D. A prothrombin time of 18 seconds is most concerning in a client with hepatic encephalopathy as it indicates impaired liver function and an increased risk of bleeding. This requires immediate intervention to prevent bleeding complications. Choice A, serum ammonia level of 80 mcg/dl, is elevated but not as urgent as the abnormal prothrombin time. Choice B, bilirubin level of 3.0 mg/dl, is elevated but does not directly indicate an urgent need for intervention in this situation. Choice C, serum sodium level of 135 mEq/L, is within the normal range and does not require immediate intervention.
4. A client with a history of chronic kidney disease is scheduled for a CT scan with contrast. Which laboratory value should the nurse review before the procedure?
- A. Serum potassium
- B. Blood urea nitrogen (BUN)
- C. Serum creatinine
- D. Serum glucose
Correct answer: C
Rationale: Before a CT scan with contrast, the nurse should review the serum creatinine level. This is crucial in assessing kidney function because contrast agents can potentially worsen renal function, leading to contrast-induced nephropathy. Monitoring serum creatinine helps in identifying patients at risk and taking necessary precautions. Serum potassium (Choice A) is important in conditions like hyperkalemia but is not the priority before a contrast CT scan. Blood urea nitrogen (BUN) (Choice B) is another renal function test but is not as specific as serum creatinine for assessing kidney function. Serum glucose (Choice D) is important in monitoring blood sugar levels, especially in diabetic patients, but it is not directly related to the risk of contrast-induced nephropathy in this scenario.
5. A male client with hypertension, who received new antihypertensive prescriptions at his last visit, returns to the clinic two weeks later to evaluate his blood pressure (BP). His BP is 158/106, and he admits that he has not been taking the prescribed medication because the drugs make him 'feel bad'. In explaining the need for hypertension control, the nurse should stress that an elevated BP places the client at risk for which pathophysiological condition?
- A. Blindness due to cataracts
- B. Acute kidney injury due to glomerular damage
- C. Stroke secondary to hemorrhage
- D. Heart block due to myocardial damage
Correct answer: C
Rationale: The correct answer is C, 'Stroke secondary to hemorrhage.' Uncontrolled hypertension can lead to the weakening of blood vessels in the brain, increasing the risk of a stroke due to hemorrhage. This can result in serious neurological deficits or even death. Choices A, B, and D are incorrect because while hypertension can have various complications including vision changes, kidney damage, and heart problems, the most immediate and severe risk associated with uncontrolled hypertension is a stroke from cerebral hemorrhage.
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