HESI RN
HESI Medical Surgical Specialty Exam
1. 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.
2. Prior to a percutaneous kidney biopsy, which actions should a nurse take? (Select all that apply.)
- A. Keep the client NPO for 4 to 6 hours.
- B. Obtain coagulation study results.
- C. Maintain strict bedrest in a supine position.
- D. A & B
Correct answer: D
Rationale: Prior to a percutaneous kidney biopsy, the nurse should ensure that the client is kept NPO for 4 to 6 hours to prevent aspiration during the procedure. Obtaining coagulation study results is crucial to assess the risk of bleeding during and after the biopsy. Strict bedrest in a supine position is not necessary before the procedure. It is important to note that blood pressure medications should be carefully managed, but it is not a pre-procedure action. Keeping the client on bedrest or assessing for blood in the urine are interventions that are more relevant post-procedure to monitor for complications.
3. While assessing a female client who is chronically fatigued and was recently diagnosed with adrenal insufficiency, the client tells the nurse that she is very nervous that her hospitalization will cause her to lose her job. Which intervention should the nurse implement first?
- A. Teach the client about the risk for infection.
- B. Offer support and care measures to reduce anxiety and stress.
- C. Encourage the client to rest quietly to reduce fatigue.
- D. Place a referral to social services to discuss financial options.
Correct answer: B
Rationale: In this scenario, the priority intervention for the nurse is to offer support and care measures to reduce anxiety and stress. Addressing the client's emotional distress is crucial as the stress can exacerbate adrenal insufficiency. While teaching the client about the risk for infection (Choice A) is important, addressing the immediate emotional needs takes precedence. Encouraging the client to rest quietly (Choice C) is beneficial but does not directly address the client's current distress about job loss. Referring the client to social services (Choice D) for financial options is important, but at this moment, addressing the client's anxiety is the priority to promote emotional well-being.
4. The client with chronic renal failure is receiving hemodialysis. Which of the following laboratory values should the nurse monitor closely?
- A. Hemoglobin level.
- B. Blood urea nitrogen (BUN) level.
- C. Serum potassium level.
- D. Creatinine level.
Correct answer: C
Rationale: The serum potassium level should be monitored closely in clients undergoing hemodialysis due to the risk of hyperkalemia. Hemodialysis is used to remove waste products and excess electrolytes like potassium from the blood. Monitoring potassium levels is crucial because an imbalance can lead to serious cardiac complications, making it the priority value to monitor in this scenario. Monitoring hemoglobin levels (choice A) is important for anemia assessment in chronic renal failure but is not directly related to hemodialysis. Blood urea nitrogen (BUN) levels (choice B) and creatinine levels (choice D) are commonly monitored in renal function tests but are not the top priority for monitoring in a client undergoing hemodialysis.
5. 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.
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