HESI RN
HESI Medical Surgical Exam
1. A client with Diabetes Insipidus (DI) is being cared for by a nurse. Which data warrants the most immediate intervention by the nurse?
- A. Serum sodium of 185 mEq/L (185 mmol/L)
- B. Dry skin with poor skin turgor
- C. Apical rate of 110 beats per minute
- D. Polyuria and excessive thirst
Correct answer: A
Rationale: A serum sodium level of 185 mEq/L (185 mmol/L) is dangerously high and indicates severe dehydration, requiring immediate intervention to prevent neurological damage. The other options are not as critical as high serum sodium levels, which can lead to serious complications such as seizures, coma, and death if not promptly addressed. Dry skin with poor skin turgor and polyuria with excessive thirst are common findings in clients with Diabetes Insipidus and should be managed but do not pose an immediate threat to the client's life. An apical heart rate of 110 beats per minute may indicate tachycardia, which could be related to dehydration but is not as urgent as addressing the severe hypernatremia.
2. A client who has developed acute kidney injury (AKI) due to an aminoglycoside antibiotic has moved from the oliguric phase to the diuretic phase of AKI. Which parameters are most important for the nurse to plan to carefully monitor?
- A. Side effects of total parenteral nutrition (TPN) and Intralipids.
- B. Uremic irritation of mucous membranes and skin surfaces.
- C. Elevated creatinine and blood urea nitrogen (BUN).
- D. Hypovolemia and electrocardiographic (ECG) changes.
Correct answer: D
Rationale: During the diuretic phase of acute kidney injury (AKI), monitoring for hypovolemia and electrocardiographic (ECG) changes is crucial. Hypovolemia can occur due to the increased urine output in this phase, potentially leading to dehydration and electrolyte imbalances. Electrolyte imbalances can result in ECG changes, such as arrhythmias, which can be life-threatening. Therefore, careful monitoring of fluid status and ECG findings helps in preventing complications. Choices A, B, and C are not the most crucial parameters to monitor during the diuretic phase of AKI. Side effects of total parenteral nutrition (TPN) and Intralipids, uremic irritation of mucous membranes and skin surfaces, and elevated creatinine and blood urea nitrogen (BUN) are important considerations in other phases of AKI or in other conditions, but they are not the primary focus during the diuretic phase when hypovolemia and ECG changes take precedence.
3. A client with histoplasmosis has the following arterial blood gas (ABG) results: pH 7.30, PCO2 58 mm Hg, PO2 75 mm Hg, HCO3 27 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: The client's ABG results show a low pH (acidosis) and an elevated PCO2, indicating respiratory acidosis. In respiratory acidosis, there is inadequate excretion of CO2, leading to increased PCO2 levels and a decrease in pH. Therefore, the correct answer is 'Metabolic acidosis'. Choices B, C, and D are incorrect. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory acidosis involves low pH and high PCO2 levels, as seen in this case. Respiratory alkalosis is associated with high pH and low PCO2 levels.
4. Which of the following is a primary intervention for a patient with sepsis?
- A. Administering antibiotics
- B. Administering IV fluids
- C. Administering antipyretics
- D. Monitoring blood cultures
Correct answer: D
Rationale: Monitoring blood cultures is a primary intervention for a patient with sepsis because it helps identify the causative organism, which is crucial in guiding appropriate antibiotic therapy. Administering antibiotics (Choice A) is important in treating sepsis but is considered a secondary intervention. Administering IV fluids (Choice B) is also crucial for sepsis management to restore perfusion and hemodynamic stability. Administering antipyretics (Choice C) may help reduce fever, but it is not a primary intervention for managing sepsis.
5. After the administration of t-PA, what should the nurse do?
- A. Observe the client for chest pain.
- B. Monitor for fever.
- C. Review the 12-lead electrocardiogram (ECG).
- D. Auscultate breath sounds.
Correct answer: A
Rationale: After the administration of t-PA, the nurse should observe the client for chest pain. Chest pain post t-PA administration could indicate reocclusion of the coronary artery, a serious complication that requires immediate intervention. Monitoring for fever (choice B) is not specifically associated with t-PA administration. While reviewing the 12-lead ECG (choice C) is important for assessing cardiac function, it may not be the immediate priority right after t-PA administration. Auscultating breath sounds (choice D) is important for assessing respiratory status but is not the most crucial assessment following t-PA administration.
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