HESI RN
HESI 799 RN Exit Exam Quizlet
1. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which laboratory value requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 4.5 mEq/L
- C. Serum bicarbonate of 15 mEq/L
- D. Serum pH of 7.28
Correct answer: D
Rationale: A serum pH of 7.28 indicates metabolic acidosis in a client with diabetic ketoacidosis (DKA), requiring immediate intervention. In DKA, the body produces excess ketones, leading to acidosis. Monitoring and correcting the pH level is crucial in managing DKA. Serum glucose levels may be high in DKA, but the immediate concern is correcting the acidosis to prevent complications. Serum potassium and bicarbonate levels are also important but not as immediately critical as correcting the acidosis in DKA.
2. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which laboratory value requires immediate intervention?
- A. Serum potassium of 6.5 mEq/L
- B. Serum sodium of 135 mEq/L
- C. Serum creatinine of 2.0 mg/dL
- D. Blood glucose of 150 mg/dL
Correct answer: A
Rationale: A serum potassium level of 6.5 mEq/L is most concerning in a client with CKD as it indicates severe hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias. Serum sodium levels within the normal range (135 mEq/L) are not immediately concerning. Serum creatinine of 2.0 mg/dL may indicate impaired kidney function but does not require immediate intervention for hyperkalemia. Blood glucose of 150 mg/dL is within normal limits and does not directly correlate with hyperkalemia in this scenario.
3. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which clinical finding is most concerning to the nurse?
- A. Serum glucose of 500 mg/dL
- B. Blood pressure of 140/90 mmHg
- C. Serum osmolarity of 320 mOsm/kg
- D. Serum pH of 7.30
Correct answer: C
Rationale: A serum osmolarity of 320 mOsm/kg is the most concerning finding in a client with hyperglycemic hyperosmolar syndrome (HHS) as it indicates severe dehydration and hypertonicity. This high serum osmolarity level can lead to neurological complications and requires immediate intervention to prevent further deterioration. Serum glucose levels, blood pressure, and serum pH are important parameters to monitor in HHS, but a significantly elevated serum osmolarity poses a higher risk of complications and warrants urgent attention. High serum glucose levels, like 500 mg/dL, are expected in HHS but do not directly indicate the severity of dehydration. Blood pressure of 140/90 mmHg is within normal limits and may not be directly related to the acute complications of HHS. A serum pH of 7.30 suggests acidosis, which is important to address but may not be as immediately concerning as severe dehydration indicated by high serum osmolarity.
4. The nurse is caring for a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which intervention should the nurse implement first?
- A. Administer a bronchodilator as prescribed.
- B. Assess the client's respiratory rate.
- C. Assess the client's oxygen saturation.
- D. Elevate the head of the bed.
Correct answer: C
Rationale: Assessing the client's oxygen saturation is crucial in a client with COPD receiving supplemental oxygen to ensure adequate oxygenation. This assessment helps determine if the current oxygen therapy is effective or if adjustments are necessary. While administering a bronchodilator is important in managing COPD, assessing oxygen saturation takes precedence to address the client's immediate oxygen needs. Assessing the respiratory rate is also important but evaluating oxygen saturation provides more direct information about the client's oxygen status. Elevating the head of the bed can improve ventilation but is not the priority when assessing oxygen saturation in a client with COPD receiving supplemental oxygen.
5. The nurse notes that a client who has undergone a thoracotomy has an increase in a large amount of dark red blood in the chest tube collection chamber. What action should the nurse take?
- A. Document the findings for this procedure as expected
- B. Notify the healthcare provider immediately
- C. Check the tube for kinks or dependent loops
- D. Increase the suction to the chest drainage system
Correct answer: B
Rationale: An increase in a large amount of dark red blood in the chest tube collection chamber may indicate active bleeding. The nurse should notify the healthcare provider immediately to address the situation promptly and prevent further complications. Documenting the findings without taking immediate action could delay necessary interventions. Checking the tube for kinks or dependent loops is a good practice but not the priority when dealing with a potentially life-threatening situation like active bleeding. Increasing the suction without healthcare provider's orders can lead to complications and is not appropriate in this scenario.
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