HESI RN
HESI Medical Surgical Exam
1. A client is scheduled for an arteriogram. The nurse should explain to the client that the arteriogram will confirm the diagnosis of occlusive arterial disease by:
- A. Showing the location of the obstruction and the collateral circulation.
- B. Scanning the affected extremity and identifying the areas of volume changes.
- C. Using ultrasound to estimate the velocity changes in the blood vessels.
- D. Determining how long the client can walk.
Correct answer: A
Rationale: The correct answer is A: Showing the location of the obstruction and the collateral circulation. An arteriogram is a diagnostic procedure that involves injecting a contrast agent to visualize the blood vessels and identify the location of any obstructions. This helps confirm the diagnosis of occlusive arterial disease by showing where the blockage is located and how collateral circulation is compensating for the reduced blood flow. Choices B, C, and D are incorrect because scanning the extremity, estimating velocity changes with ultrasound, or determining walking distance are not the primary purposes of an arteriogram in diagnosing occlusive arterial disease.
2. When a patient is receiving high doses of a cephalosporin, which laboratory values will this patient's nurse monitor closely?
- A. Blood urea nitrogen (BUN), serum creatinine, and liver function tests
- B. Complete blood count and electrolytes
- C. Serum calcium and magnesium
- D. Serum glucose and lipids
Correct answer: A
Rationale: When a patient is receiving high doses of a cephalosporin, such as cefazolin, the nurse should closely monitor laboratory values that indicate renal and hepatic function. This includes checking the Blood Urea Nitrogen (BUN) and serum creatinine levels to assess kidney function. Additionally, monitoring liver function tests, such as AST, ALT, ALP, LDH, and bilirubin, is essential as cephalosporins can affect liver enzymes. Therefore, options B, C, and D are incorrect as they do not specifically address the parameters that are most pertinent when administering high doses of cephalosporins.
3. What is the most important content for the nurse to include in discharge teaching for a 51-year-old truck driver who smokes two packs of cigarettes a day, is 30 pounds overweight, and has been diagnosed with a gastric ulcer?
- A. Information about smoking cessation.
- B. Diet instructions for a low-residue diet.
- C. Instructions on a weight-loss program.
- D. The importance of increasing milk in the diet.
Correct answer: A
Rationale: The correct answer is A: Information about smoking cessation. Smoking is a significant risk factor for ulcer formation. It is crucial for the nurse to include smoking cessation information in the discharge teaching to help manage the gastric ulcer and prevent further complications. Choices B, C, and D are less relevant in this scenario. While diet modifications may be beneficial, addressing smoking cessation takes precedence due to its direct correlation with ulcer development.
4. 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.
5. The nurse is preparing to give a dose of a cephalosporin medication to a patient who has been receiving the antibiotic for 2 weeks. The nurse notes ulcers on the patient’s tongue and buccal mucosa. Which action will the nurse take?
- A. Hold the drug and notify the provider.
- B. Obtain an order to culture the oral lesions.
- C. Gather emergency equipment to prepare for anaphylaxis.
- D. Report a possible superinfection side effect of the cephalosporin.
Correct answer: D
Rationale: The nurse should report a possible superinfection side effect of the cephalosporin to the physician as the patient's symptoms may indicate a superinfection that requires treatment. Holding the drug is not necessary unless directed by the provider. Culturing the lesions is not indicated for this situation. There is no evidence to suggest impending anaphylaxis based on the patient's symptoms.
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