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Medical Surgical HESI
1. A 55-year-old client with symptoms of osteoarthritis asks which form of exercise would be most beneficial. What is the best response by the nurse?
- A. Walking.
- B. Running.
- C. Swimming.
- D. Weight lifting.
Correct answer: C
Rationale: The correct answer is C: 'Swimming.' Swimming is a low-impact exercise that helps maintain joint mobility and reduce pain in clients with osteoarthritis. Unlike running or weight lifting, swimming is gentle on the joints, making it an ideal choice for individuals with osteoarthritis. Walking can be beneficial too, but swimming is often preferred due to its low-impact nature. Running and weight lifting may exacerbate joint pain and should be avoided by individuals with osteoarthritis.
2. A middle-aged man who has a 35-year smoking history presents to the emergency department confused and short of breath. Before starting oxygen, these baseline arterial blood gases (ABGs) are obtained: pH=7.25, pCO2=50 mmHg, HCO3=30 mEq/L. These findings indicate to the nurse that the client is experiencing which acid-base imbalance?
- A. Metabolic acidosis.
- B. Respiratory acidosis.
- C. Metabolic alkalosis.
- D. Respiratory alkalosis.
Correct answer: B
Rationale: The ABG results show a low pH (acidosis) and increased pCO2, indicating respiratory acidosis. In respiratory acidosis, the lungs cannot remove enough CO2, leading to its accumulation in the blood. This often occurs in conditions like COPD and is consistent with the patient's smoking history. Metabolic acidosis (choice A) is characterized by low pH and low HCO3 levels. Metabolic alkalosis (choice C) is marked by high pH and high HCO3 levels. Respiratory alkalosis (choice D) presents with high pH and low pCO2.
3. To assess the quality of an adult client’s pain, what approach should the nurse use?
- A. Ask the client to rate the pain on a scale of 1 to 10.
- B. Ask the client to describe the pain.
- C. Observe the client’s nonverbal cues.
- D. Determine the client’s pain tolerance.
Correct answer: B
Rationale: The correct approach for assessing the quality of an adult client's pain is to ask the client to describe the pain. By doing so, the nurse gains valuable information about the quality, location, and nature of the pain directly from the client. This approach allows for a more comprehensive understanding of the pain experience. Choice A, asking the client to rate the pain on a scale of 1 to 10, focuses more on intensity rather than quality. Choice C, observing the client's nonverbal cues, can provide additional information but may not fully capture the client's subjective experience of pain. Choice D, determining the client's pain tolerance, is not directly related to assessing the quality of pain but rather to how much pain a client can endure.
4. A young adult client, admitted to the emergency department following a motor vehicle collision, is transfused with 4 units of PRBCs. The client’s pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all PRBCs have been transfused?
- A. 23%
- B. 25%
- C. 27%
- D. 29%
Correct answer: D
Rationale: One unit of PRBCs typically raises the hematocrit by 3%. Since the client received 4 units, the hematocrit is expected to increase by approximately 12% (4 units x 3% per unit). Therefore, the nurse should expect the client's hematocrit to be 29% after all PRBCs have been transfused. Choices A, B, and C are incorrect as they do not account for the cumulative effect of multiple PRBC units on the hematocrit level.
5. Which statement correctly explains the etiology of Down syndrome?
- A. There is an extra chromosome on the 21st pair.
- B. There is a missing chromosome on the 21st pair.
- C. There are two pairs of the 21st chromosome.
- D. The 21st chromosome pair is missing.
Correct answer: A
Rationale: The correct answer is A: 'There is an extra chromosome on the 21st pair.' Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21. This additional genetic material leads to the characteristics associated with Down syndrome. Choices B, C, and D are incorrect because Down syndrome is not due to a missing chromosome or having two pairs of the 21st chromosome; it results from the presence of an extra chromosome on the 21st pair.
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