HESI RN
HESI Medical Surgical Exam
1. What is the most common cause of urinary tract infections (UTIs)?
- A. Escherichia coli infection
- B. Staphylococcus aureus infection
- C. Pseudomonas aeruginosa infection
- D. Klebsiella pneumoniae infection
Correct answer: A
Rationale: Escherichia coli is the most common cause of urinary tract infections (UTIs). It is responsible for the majority of UTIs, especially in women. E. coli is a normal inhabitant of the bowel and can enter the urinary tract through the urethra, leading to infection. Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae are less common causes of UTIs compared to E. coli. Staphylococcus aureus typically causes skin and soft tissue infections, Pseudomonas aeruginosa is more commonly associated with healthcare-associated infections, and Klebsiella pneumoniae is known for causing pneumonia and other respiratory infections.
2. A client taking furosemide (Lasix) reports difficulty sleeping. What question is important for the nurse to ask the client?
- A. What dose of medication are you taking?
- B. Are you eating foods rich in potassium?
- C. Have you lost weight recently?
- D. At what time do you take your medication?
Correct answer: D
Rationale: The nurse needs to determine at what time of day the client takes the Lasix. Due to the diuretic effect of Lasix, clients should take the medication in the morning to prevent nocturia, which may be contributing to the sleep difficulties. Asking about the dose of medication (Choice A) is important but addressing the timing of intake is more crucial in this situation. Inquiring about potassium-rich foods (Choice B) is relevant for clients on potassium-sparing diuretics. Weight loss (Choice C) may be relevant for monitoring the client's overall health but is not directly related to the sleep issue in this case.
3. A nurse is teaching a nursing student how to measure a carotid pulse. The nurse should tell the student to measure the pulse on only one side of the client’s neck primarily because:
- A. It is unnecessary to use both hands
- B. Feeling dual pulsations may lead to an incorrect measurement
- C. Palpating both carotid pulses simultaneously could occlude the trachea
- D. Palpating both carotid pulses simultaneously could cause the heart rate and blood pressure to drop
Correct answer: D
Rationale: The correct answer is D. Applying pressure to both carotid arteries at the same time is contraindicated. Excess pressure to the baroreceptors in the carotid vessels could cause the heart rate and blood pressure to reflexively drop. Palpating both carotid pulses simultaneously could also interfere with the flow of blood to the brain, possibly causing dizziness and syncope. Choices A, B, and C are incorrect. It is necessary to use both hands to measure the carotid pulse accurately. Feeling dual pulsations does not lead to an incorrect measurement, and palpating both carotid pulses simultaneously does not occlude the trachea.
4. The client had a thyroidectomy 24 hours ago and reports experiencing numbness and tingling of the face. Which intervention should the nurse implement?
- A. Open and prepare the tracheostomy kit.
- B. Inspect the neck for an increase in swelling.
- C. Monitor for the presence of Chvostek's sign.
- D. Assess lung sounds for laryngeal stridor.
Correct answer: C
Rationale: The correct answer is C: Monitor for the presence of Chvostek's sign. Chvostek's sign is a clinical indicator of hypocalcemia, a common complication after thyroidectomy. Numbness and tingling around the face are associated with hypocalcemia due to potential damage to the parathyroid glands during surgery, leading to decreased calcium levels. Inspecting the neck for swelling (choice B) is important but does not directly address the presenting symptoms. Opening and preparing the tracheostomy kit (choice A) is not necessary based on the client's current symptoms. Assessing lung sounds for laryngeal stridor (choice D) is not directly related to the client's reported numbness and tingling of the face.
5. A nurse is conducting an assessment of a client who underwent thoracentesis of the right side of the chest 3 hours ago. Which findings does the nurse report to the physician? Select all that apply.
- A. Unequal chest expansion
- B. Pulse rate of 82 beats/min
- C. Respiratory rate of 22 breaths/min
- D. Diminished breath sounds in the right lung
Correct answer: A
Rationale: After thoracentesis, the nurse should assess the client for signs of pneumothorax, which include increased respiratory rate, dyspnea, retractions, unequal chest expansion, diminished breath sounds, and cyanosis. Unequal chest expansion is a key sign of pneumothorax due to the accumulation of air in the pleural space, causing the affected lung to collapse partially. Pulse rate and respiratory rate within normal ranges, like in choices B and C, are not the priority findings to report in this situation. Diminished breath sounds in the right lung could be expected after thoracentesis and may not necessarily indicate a complication like pneumothorax, making choice D less urgent to report.
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