HESI RN
Evolve HESI Medical Surgical Practice Exam
1. After an endotracheal tube is placed in a client who experienced sudden onset of respiratory distress, what should the nurse do?
- A. Secure the tube in place with tape
- B. Order a chest x-ray for the client
- C. Document the depth of tube insertion
- D. Auscultate both lungs for breath sounds
Correct answer: D
Rationale: After endotracheal tube insertion, the nurse should auscultate both lungs for the presence of breath sounds. This step helps confirm proper tube placement and adequate ventilation. Auscultation of breath sounds is crucial to ensure that the tube is correctly positioned in the trachea and not in the esophagus. While securing the tube with tape is important, it is not the immediate priority after insertion. Ordering a chest x-ray may be necessary but is not the first action to take immediately post-intubation. Documenting the depth of tube insertion is important but ensuring proper ventilation through auscultation takes precedence.
2. In a patient with cirrhosis, which of the following lab results is most concerning?
- A. Elevated liver enzymes.
- B. Low albumin levels.
- C. Elevated bilirubin levels.
- D. Low platelet count.
Correct answer: D
Rationale: In a patient with cirrhosis, a low platelet count is the most concerning lab result. Thrombocytopenia, or low platelet count, is common in cirrhosis due to impaired platelet production in the liver. It significantly increases the risk of bleeding and can lead to serious complications such as hemorrhage. Elevated liver enzymes (Choice A) are expected in cirrhosis but may not directly indicate the severity of the disease. Low albumin levels (Choice B) are common in cirrhosis and can contribute to fluid retention but do not pose an immediate risk of bleeding. Elevated bilirubin levels (Choice C) are also expected in cirrhosis and typically indicate impaired liver function but do not directly increase the risk of bleeding as much as a low platelet count.
3. A patient’s serum osmolality is 305 mOsm/kg. Which term describes this patient’s body fluid osmolality?
- A. Iso-osmolar
- B. Hypo-osmolar
- C. Hyperosmolar
- D. Isotonic
Correct answer: C
Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.
4. Which of the following is a common cause of chronic obstructive pulmonary disease (COPD)?
- A. Smoking
- B. Asthma
- C. Allergies
- D. Chronic bronchitis
Correct answer: A
Rationale: Smoking is the correct answer as it is a well-established common cause of chronic obstructive pulmonary disease (COPD). Smoking leads to long-term damage to the lungs, contributing to the development of COPD. Choice B, asthma, is not a cause but a separate respiratory condition characterized by airway inflammation and hyperresponsiveness. Allergies, choice C, are not a direct cause of COPD but can exacerbate symptoms in individuals with existing COPD. Chronic bronchitis, choice D, is a type of COPD, not a cause of COPD itself, making it an incorrect choice in this context.
5. A client who is experiencing respiratory distress is admitted with respiratory acidosis. Which pathophysiological process supports the client's respiratory acidosis?
- A. Carbon dioxide is converted in the kidneys for elimination.
- B. Blood oxygen levels are stimulating the respiratory rate.
- C. Hyperventilation is eliminating carbon dioxide rapidly.
- D. High levels of carbon dioxide have accumulated in the blood.
Correct answer: D
Rationale: The correct answer is D. High levels of carbon dioxide in the blood are indicative of respiratory acidosis, often due to inadequate ventilation. In respiratory acidosis, there is retention of carbon dioxide (hypercapnia) leading to an increase in carbonic acid levels in the blood, resulting in an acidic pH. Option A is incorrect because carbon dioxide elimination primarily occurs through the lungs, not the kidneys. Option B is incorrect because blood oxygen levels primarily affect the respiratory rate to regulate oxygen levels, not carbon dioxide levels. Option C is incorrect because hyperventilation would lead to a decrease, not an increase, in carbon dioxide levels.
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