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. Which of the following is an expected finding in a patient with hypothyroidism?
- A. Weight gain.
- B. Weight loss.
- C. Increased appetite.
- D. Diarrhea.
Correct answer: A
Rationale: Weight gain is an expected finding in hypothyroidism due to the decreased metabolic rate. Hypothyroidism leads to a slowing down of bodily functions, including metabolism, which can result in weight gain. Weight loss (Choice B) is more commonly associated with hyperthyroidism where there is an increase in metabolic rate. Increased appetite (Choice C) is also more typical of hyperthyroidism as the body is burning energy at a faster rate. Diarrhea (Choice D) is not a typical symptom of hypothyroidism; instead, constipation is more often observed due to the slowing down of the digestive system.
3. The healthcare provider is assessing a client who is receiving hemodialysis for the first time. Which of the following findings should be reported to the healthcare provider immediately?
- A. Blood pressure of 150/90 mm Hg.
- B. Nausea and vomiting.
- C. Fatigue.
- D. Headache.
Correct answer: B
Rationale: Nausea and vomiting are critical symptoms that should be reported immediately when a client is receiving hemodialysis for the first time. These symptoms could indicate a severe complication, such as hypotension, infection, electrolyte imbalance, or other adverse reactions to the procedure. It is essential to address these symptoms promptly to prevent further complications or harm to the client. Choices A, C, and D are not immediate concerns during the first hemodialysis session and can be addressed appropriately after addressing the urgent issue of nausea and vomiting.
4. A patient is being treated for shock after a motor vehicle accident. The provider orders 6% dextran 75 to be given intravenously. The nurse should expect which outcome as the result of this infusion?
- A. Decreased urine output
- B. Improved blood oxygenation
- C. Increased interstitial fluid
- D. Stabilization of heart rate and blood pressure
Correct answer: D
Rationale: 6% Dextran 75 is a high molecular-weight colloidal solution used to treat shock from burns or trauma. Colloids like 6% dextran 75 are plasma expanders that help increase blood volume, leading to improved heart rate and blood pressure stabilization. The infusion of plasma expanders does not typically decrease urine output. It primarily aims to stabilize circulation rather than affect blood oxygenation or increase interstitial fluid levels.
5. A nurse reviews the laboratory findings of a client with a urinary tract infection. The laboratory report notes a “shift to the left” in the client’s white blood cell count. Which action should the nurse take?
- A. Request that the laboratory perform a differential analysis on the white blood cells.
- B. Notify the provider and start an intravenous line for parenteral antibiotics.
- C. Collaborate with the unlicensed assistive personnel (UAP) to strain the client’s urine for renal calculi.
- D. Assess the client for a potential allergic reaction and anaphylactic shock.
Correct answer: B
Rationale: A “shift to the left” in a white blood cell count indicates an increase in band cells, which is typically associated with urosepsis. In this scenario, the nurse should notify the provider and initiate IV antibiotics as a left shift is often seen in severe infections like urosepsis. Requesting a differential analysis on white blood cells would not be the immediate action needed in response to a left shift. Collaborating to strain urine for renal calculi is unrelated to the situation of a left shift in white blood cells due to urosepsis. Assessing for allergic reactions and anaphylactic shock is not the priority as a left shift is not indicative of an allergic response; it is associated with an increase in band cells, not eosinophils.
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