HESI RN
HESI Medical Surgical Specialty Exam
1. A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client’s arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 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 correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.
2. A client is receiving continuous ambulatory peritoneal dialysis. Which of the following statements indicates the need for more teaching by the nurse?
- A. I should take all my medications every morning.
- B. The catheter should always remain in place.
- C. The catheter should be flushed daily with sterile saline.
- D. If I gain 2 pounds, I should skip dialysis that day.
Correct answer: D
Rationale: The correct answer is D. Gaining weight is a sign that the client may be retaining fluid, indicating a need for dialysis to remove excess fluid. Skipping dialysis based on weight gain can lead to fluid overload, electrolyte imbalances, and other serious complications. Choices A, B, and C are all correct statements regarding peritoneal dialysis care: taking medications as prescribed is essential for overall health, ensuring the catheter remains in place is crucial to prevent infection, and flushing the catheter with sterile saline daily helps maintain its patency and reduce the risk of infections.
3. When conducting discharge teaching for a client diagnosed with diverticulitis, which diet instruction should the nurse include?
- A. Have small, frequent meals and sit up for at least two hours after meals
- B. Eat a bland diet and avoid spicy foods
- C. Eat a high-fiber diet and increase fluid intake
- D. Eat a soft diet with increased intake of milk and milk products
Correct answer: C
Rationale: For a client diagnosed with diverticulitis, the nurse should instruct them to eat a high-fiber diet and increase fluid intake. This diet helps in managing diverticulitis by promoting bowel regularity and preventing complications such as diverticular inflammation or infection. Choice A of having small, frequent meals and sitting up for at least two hours after meals may be beneficial for gastroesophageal reflux disease but is not specific to diverticulitis. Choice B of eating a bland diet and avoiding spicy foods is not the preferred recommendation for diverticulitis management. Choice D of eating a soft diet with increased intake of milk and milk products may not provide enough fiber to aid in diverticulitis management, and the increased intake of dairy products may worsen symptoms in some individuals.
4. When a patient is receiving high doses of a cephalosporin, which laboratory values will this patient's nurse monitor closely?
- A. Blood urea nitrogen (BUN), serum creatinine, and liver function tests
- B. Complete blood count and electrolytes
- C. Serum calcium and magnesium
- D. Serum glucose and lipids
Correct answer: A
Rationale: When a patient is receiving high doses of a cephalosporin, such as cefazolin, the nurse should closely monitor laboratory values that indicate renal and hepatic function. This includes checking the Blood Urea Nitrogen (BUN) and serum creatinine levels to assess kidney function. Additionally, monitoring liver function tests, such as AST, ALT, ALP, LDH, and bilirubin, is essential as cephalosporins can affect liver enzymes. Therefore, options B, C, and D are incorrect as they do not specifically address the parameters that are most pertinent when administering high doses of cephalosporins.
5. Which of the following is a common cause of chronic obstructive pulmonary disease (COPD)?
- A. Smoking
- B. Asthma
- C. Allergies
- D. Chronic bronchitis
Correct answer: A
Rationale: Smoking is the correct answer as it is a well-established common cause of chronic obstructive pulmonary disease (COPD). Smoking leads to long-term damage to the lungs, contributing to the development of COPD. Choice B, asthma, is not a cause but a separate respiratory condition characterized by airway inflammation and hyperresponsiveness. Allergies, choice C, are not a direct cause of COPD but can exacerbate symptoms in individuals with existing COPD. Chronic bronchitis, choice D, is a type of COPD, not a cause of COPD itself, making it an incorrect choice in this context.
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