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 who is anxious about an impending surgery is at risk for respiratory alkalosis. For which signs and symptoms of respiratory alkalosis does the nurse assess this client?
- A. Disorientation and dyspnea
- B. Drowsiness, headache, and tachypnea
- C. Tachypnea, dizziness, and paresthesias
- D. Dysrhythmias and decreased respiratory rate and depth
Correct answer: C
Rationale: The correct answer is C: Tachypnea, dizziness, and paresthesias. When a client is anxious, they may hyperventilate, leading to respiratory alkalosis. Tachypnea (rapid breathing) is a common sign of respiratory alkalosis. Dizziness and paresthesias (tingling or numbness in the extremities) are also typical symptoms. Choices A, B, and D are incorrect. Disorientation and dyspnea (Choice A) are not specific signs of respiratory alkalosis. Drowsiness, headache, and tachypnea (Choice B) may be more indicative of other conditions. Dysrhythmias and decreased respiratory rate and depth (Choice D) are not consistent with the expected signs of respiratory alkalosis.
3. Four days following an abdominal aortic aneurysm repair, the client is exhibiting edema of both lower extremities, and pedal pulses are not palpable. Which action should the nurse implement first?
- A. Elevate extremities on pillows
- B. Evaluate edema for pitting
- C. Assess pulses with a vascular Doppler
- D. Wrap the feet with warmed blankets
Correct answer: C
Rationale: In this scenario, the priority action for the nurse is to assess pulses with a vascular Doppler. The absence of palpable pedal pulses following an abdominal aortic aneurysm repair raises concerns about compromised blood flow, which could lead to serious complications like ischemia or thrombosis. Evaluating and confirming the presence or absence of pulses is crucial to guide further interventions. Elevating extremities on pillows (Choice A) may be beneficial for managing edema, but it is not the immediate priority when pulses are not palpable. Evaluating edema for pitting (Choice B) can provide additional information about fluid status but does not address the primary concern of absent pulses. Wrapping the feet with warmed blankets (Choice D) is not appropriate in this situation and may not address the underlying vascular issue.
4. Which client should the nurse recognize as most likely to experience sleep apnea?
- A. Middle-aged female who takes a diuretic nightly.
- B. Obese older male client with a short, thick neck.
- C. Adolescent female with a history of tonsillectomy.
- D. School-aged male with a history of hyperactivity disorder.
Correct answer: B
Rationale: The correct answer is B. Sleep apnea is characterized by pauses in breathing during sleep, often due to a collapsed or blocked airway. Obesity and having a short, thick neck are risk factors for sleep apnea because excess fat around the neck can obstruct the airway. Option A (middle-aged female who takes a diuretic nightly) does not present as a common risk factor for sleep apnea. Option C (adolescent female with a history of tonsillectomy) may have had tonsils removed, which could reduce the risk of sleep apnea. Option D (school-aged male with a history of hyperactivity disorder) is not directly associated with an increased risk of sleep apnea.
5. A nurse cares for adult clients who experience urge incontinence. For which client should the nurse plan a habit training program?
- A. A 78-year-old female who is confused
- B. A 65-year-old male with diabetes mellitus
- C. A 52-year-old female with kidney failure
- D. A 47-year-old male with arthritis
Correct answer: A
Rationale: For a bladder training program to succeed in a client with urge incontinence, the client must be alert, aware, and able to resist the urge to urinate. Habit training will work best for a confused client. This includes going to the bathroom (or being assisted to the bathroom) at set times. The other clients may benefit from other types of bladder training. A confused client may need structured assistance to establish a regular bathroom routine, which can help manage urge incontinence effectively. Clients with diabetes mellitus, kidney failure, or arthritis may require different strategies tailored to their specific conditions.
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