HESI RN
HESI Medical Surgical Assignment Exam Questions
Question 1 of 5
A young adult asks the nurse about the normal cholesterol level. The nurse tells the client that the total cholesterol level should be maintained at less than:
Correct Answer: B
Rationale: The correct answer is B: 200 mg/dL. A normal cholesterol value ranges between 140 and 199 mg/dL. Total cholesterol levels should ideally be maintained at 200 mg/dL or less to reduce the risk of cardiovascular diseases. Choices A, C, and D are incorrect as they exceed the recommended normal range for total cholesterol levels and may increase the risk of developing heart-related issues.
Question 2 of 5
A client has the following arterial blood gas (ABG) results: pH 7.51, PCO2 31 mm Hg, PO2 94 mm Hg, HCO3 24 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
Correct Answer: D
Rationale: The ABG results show a pH above the normal range (7.35-7.45) and a decreased PCO2, indicating respiratory alkalosis. In respiratory alkalosis, the pH is increased and the PCO2 is decreased. Metabolic acidosis (choice A) would present with a low pH and low HCO3 levels. Metabolic alkalosis (choice B) would show an increased pH and HCO3 levels. Respiratory acidosis (choice C) would have a low pH and an increased PCO2.
Question 3 of 5
A client who is mouth breathing is receiving oxygen by face mask. The nursing assistant asks the nurse why a water bottle is attached to the oxygen tubing near the wall oxygen outlet. The nurse responds that the primary purpose of the water is to:
Correct Answer: C
Rationale: The purpose of the water bottle is to humidify the oxygen that is bypassing the nose during mouth breathing. When a client breathes through the mouth, the oxygen delivered by the face mask bypasses the natural humidification provided by the nasal passages. Therefore, the water bottle attachment helps to add moisture to the oxygen, preventing dryness and irritation to the respiratory tract. Choices A, B, and D are incorrect. Clients breathing through the mouth are not at risk for nosebleeds, do not receive added fluid through the respiratory tree, and do not experience fluid loss from the lungs due to mouth breathing.
Question 4 of 5
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:
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.
Question 5 of 5
A client has an elevated blood urea nitrogen (BUN)/creatinine ratio. Which action should the nurse take first?
Correct Answer: A
Rationale: An elevated blood urea nitrogen (BUN)/creatinine ratio can indicate various conditions such as dehydration, urinary obstruction, catabolism, or a high-protein diet. The initial action the nurse should take is to assess the client's dietary habits to determine if the elevated ratio is related to diet. Inquiring about the use of NSAIDs is important as they can impact kidney function, but dietary causes should be ruled out first. Holding metformin or contacting the health care provider without assessing the dietary habits would be premature actions as they may not address the underlying cause of the elevated BUN/creatinine ratio.