HESI LPN
HESI Test Bank Medical Surgical Nursing
1. The healthcare provider prescribes Cytovene 375 mg every 12 hours to infuse over 90 minutes. The pharmacy delivers Cytovene 375 mg in a 150 mL IV bag. How many ml/hour should the nurse program the infusion pump?
- A. 50 ml/hour.
- B. 75 ml/hour.
- C. 100 ml/hour.
- D. 125 ml/hour.
Correct answer: C
Rationale: To infuse 150 mL over 90 minutes, the pump should be set to 100 ml/hour (150 mL / 1.5 hours). This rate ensures that the medication is delivered at the proper rate as prescribed. Choices A, B, and D are incorrect because they do not reflect the correct calculation based on the volume of the IV bag and the infusion duration provided in the question.
2. What is the best position for a client experiencing a nosebleed?
- A. Sitting up and leaning forward
- B. Lying flat with a pillow under the head
- C. Sitting up and leaning back
- D. Lying on the side with the head elevated
Correct answer: A
Rationale: The best position for a client experiencing a nosebleed is sitting up and leaning forward. This position helps prevent blood from flowing down the throat and reduces the risk of aspiration. Choice B is incorrect as lying flat can lead to blood flowing down the throat. Choice C is also incorrect because leaning back may cause blood to flow backward into the throat. Choice D is incorrect as lying on the side with the head elevated is not the optimal position to manage a nosebleed effectively.
3. While changing the dressing of a client with a leg ulcer, the nurse observes a red, tender, and swollen wound at the site of the lesion. Before reporting this finding to the healthcare provider, the nurse should note which of the client’s laboratory values?
- A. Neutrophil count.
- B. Hematocrit.
- C. Blood pH.
- D. Serum potassium and sodium.
Correct answer: A
Rationale: The correct answer is A: Neutrophil count. Neutrophil count helps assess for infection, which is indicated by the redness, tenderness, and swelling of the wound. Elevated neutrophil count is a common sign of bacterial infection. Hematocrit (choice B) measures the proportion of blood volume that is occupied by red blood cells and is not directly related to wound infection. Blood pH (choice C) and serum potassium and sodium (choice D) are important for assessing acid-base balance and electrolyte levels but are not the primary indicators of wound infection.
4. The nurse is caring for a client with acute pancreatitis. Which laboratory result is most indicative of this condition?
- A. Elevated serum amylase
- B. Decreased serum bilirubin
- C. Increased blood urea nitrogen (BUN)
- D. Decreased alkaline phosphatase
Correct answer: A
Rationale: Elevated serum amylase is the most indicative laboratory result of acute pancreatitis. In this condition, the pancreas becomes inflamed, leading to the leakage of amylase and lipase into the bloodstream. Elevated serum amylase levels are a classic finding in acute pancreatitis. Choices B, C, and D are not typically associated with acute pancreatitis. Decreased serum bilirubin, increased blood urea nitrogen (BUN), and decreased alkaline phosphatase levels are not specific markers for acute pancreatitis.
5. Based on this strip, what is the correct interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Premature atrial fibrillation.
- C. AV block.
- D. Ventricular tachycardia.
Correct answer: A
Rationale: The correct interpretation of the rhythm strip is atrial fibrillation. This arrhythmia is characterized by an irregular heartbeat and the absence of distinct P waves. Choice B, premature atrial fibrillation, is incorrect as there is no indication of premature beats in the strip. Choice C, AV block, is also incorrect as there is no evidence of conduction delays between the atria and ventricles. Choice D, ventricular tachycardia, is not supported by the absence of wide QRS complexes typically seen in this arrhythmia.
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