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. When preparing to examine a client’s skin using a Wood light, what should the nurse do to facilitate this procedure?
- A. Darken the examining room
- B. Administer a local anesthetic
- C. Obtain a signed informed consent
- D. Shave the skin and scrub it with povidone-iodine (Betadine)
Correct answer: A
Rationale: When using a Wood light to examine the skin, the nurse should darken the examining room. This is necessary because the Wood light emits long-wavelength UV light, which is better visualized in a darkened environment. Administering a local anesthetic (Choice B) is not needed for this procedure. Obtaining a signed informed consent (Choice C) is not directly related to using a Wood light for skin examination. Shaving the skin and scrubbing it with povidone-iodine (Betadine) (Choice D) is not required and may not be appropriate for this type of skin examination.
3. A client with overflow incontinence needs assistance with elimination. What intervention should the nurse include in the plan of care?
- A. Stroke the medial aspect of the thigh.
- B. Use intermittent catheterization.
- C. Provide digital anal stimulation.
- D. Use the Valsalva maneuver.
Correct answer: D
Rationale: In clients with overflow incontinence, the voiding reflex arc is impaired. The Valsalva maneuver, which involves holding the breath and bearing down as if to defecate, can help initiate voiding by applying mechanical pressure. Options A and C (stroking the thigh or anal stimulation) rely on an intact reflex arc to trigger elimination and are not effective for clients with overflow incontinence. Intermittent catheterization (Option B) is a last resort due to the high risk of infection and should only be considered if other interventions fail.
4. The healthcare provider is assessing a client with chronic renal failure who is receiving hemodialysis. Which of the following findings would indicate a complication of the treatment?
- A. Temperature of 98.6°F (37°C).
- B. Weight gain of 2 lbs (0.9 kg) since the last treatment.
- C. Blood pressure of 130/80 mm Hg.
- D. Pulse rate of 72 bpm.
Correct answer: B
Rationale: Weight gain between dialysis sessions can indicate fluid overload, a common complication in clients with chronic renal failure. This can lead to complications such as hypertension, pulmonary edema, and heart failure. A normal temperature, blood pressure, and pulse rate are expected findings in this scenario and would not typically indicate a complication of hemodialysis treatment.
5. To help minimize the risk of postoperative respiratory complications after a hypophysectomy, during preoperative teaching, the nurse should instruct the client how to:
- A. Use incentive spirometry.
- B. Turn in bed.
- C. Take deep breaths.
- D. Cough.
Correct answer: C
Rationale: The correct answer is to instruct the client on how to take deep breaths. Deep breathing exercises are essential in preventing postoperative respiratory complications like atelectasis by promoting lung expansion. Using incentive spirometry is a more specific and advanced method of promoting deep breathing and lung expansion, making it a better choice than just turning in bed. While turning in bed may help with overall comfort and positioning, it is not as directly related to respiratory complications as deep breathing exercises. Coughing, although important for clearing secretions, is not as effective in preventing atelectasis as deep breathing exercises.
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