HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 5.5 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L indicates metabolic acidosis in a client with DKA, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis, which is reflected by a low serum bicarbonate level. Correcting the low serum bicarbonate is crucial to normalize the metabolic acidosis and improve the client's condition. While elevated serum glucose (choice A) and urine ketones (choice D) are characteristic of DKA, addressing the metabolic acidosis takes precedence. Serum potassium (choice B) levels may also need monitoring and management, but correcting the acidosis is the priority to prevent complications like cardiovascular collapse.
2. The client with chronic obstructive pulmonary disease (COPD) is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dl
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is concerning in a client with COPD receiving supplemental oxygen as it indicates metabolic acidosis, which can occur due to the body compensating for chronic respiratory acidosis. This condition requires immediate intervention to restore the acid-base balance. Choice A, serum sodium of 135 mEq/L, is within normal range (135-145 mEq/L) and not directly related to COPD or oxygen therapy. Choice B, serum potassium of 4.0 mEq/L, falls within the normal range (3.5-5.0 mEq/L) and is not typically affected by COPD or oxygen therapy. Choice D, serum glucose of 300 mg/dl, though elevated, is not directly related to COPD or oxygen therapy and would require management but is not the most concerning value in this scenario.
3. A woman who takes pyridostigmine for myasthenia gravis (MG) arrives at the emergency department complaining of extreme muscle weakness. Her adult daughter tells the nurse that since yesterday her mother has been unable to smile. Which assessment finding warrants immediate intervention by the nurse?
- A. Uncontrollable drooling.
- B. Inability to raise voice.
- C. Tingling of extremities.
- D. Eyelid drooping.
Correct answer: A
Rationale: Uncontrollable drooling can be a sign of a myasthenic crisis, which requires immediate medical intervention to prevent respiratory failure. Drooling indicates difficulty in swallowing, which can lead to aspiration and respiratory compromise. Inability to raise voice (choice B) and tingling of extremities (choice C) are not typically associated with myasthenic crisis. Although eyelid drooping (choice D) is a common symptom of myasthenia gravis, it is not as urgent as uncontrollable drooling in indicating a potential crisis.
4. A client with cirrhosis is admitted with jaundice and ascites. Which assessment finding is most concerning?
- A. Peripheral edema
- B. Confusion and altered mental status
- C. Yellowing of the skin
- D. Increased abdominal girth
Correct answer: C
Rationale: In a client with cirrhosis presenting with jaundice and ascites, yellowing of the skin (icterus) is the most concerning assessment finding. This indicates significant liver dysfunction and a high level of bilirubin in the blood. Yellowing of the skin suggests a severe impairment of the liver's ability to process bilirubin, which can lead to serious complications. Peripheral edema and increased abdominal girth are common manifestations of cirrhosis but are not as acutely concerning as skin yellowing. Confusion and altered mental status are also critical findings in cirrhosis, indicating hepatic encephalopathy, but skin yellowing is more closely associated with the severity of liver dysfunction in this scenario.
5. During the infusion of a second unit of packed red blood cells, the client's temperature increases from 99 to 101.6 F. Which intervention should the nurse implement?
- A. Stop the transfusion and start a saline infusion.
- B. Administer antipyretics and continue the transfusion.
- C. Monitor the client’s vital signs every 15 minutes.
- D. Notify the healthcare provider and continue the transfusion.
Correct answer: A
Rationale: An increase in temperature during a transfusion may indicate a transfusion reaction, which can be serious. Stopping the transfusion and starting a saline infusion is the priority action to prevent further complications and address the potential adverse reaction. Administering antipyretics (choice B) may mask the symptoms of a transfusion reaction, delaying appropriate treatment. While monitoring vital signs (choice C) is important, stopping the transfusion takes precedence to prevent harm. Notifying the healthcare provider (choice D) is essential but should not delay the immediate intervention of stopping the transfusion and starting a saline infusion.
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