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 could suddenly occur in a child with acute epiglottitis?
- A. Increased carbon dioxide levels
- B. Airway obstruction
- C. Inability to swallow
- D. Bronchial collapse
Correct answer: B
Rationale: In acute epiglottitis, the infected epiglottis becomes inflamed and can lead to sudden airway obstruction, which is a life-threatening emergency. This can cause difficulty breathing and necessitates immediate intervention to secure the airway. Increased carbon dioxide levels may occur due to inadequate ventilation resulting from airway obstruction, but the primary concern is the obstruction itself, not the carbon dioxide levels. Inability to swallow may be present due to pain and swelling in the throat but is not the immediate life-threatening complication associated with acute epiglottitis. Bronchial collapse is not a typical consequence of acute epiglottitis.
3. What is the most common clinical manifestation of coarctation of the aorta?
- A. Clubbing of the digits
- B. Upper extremity hypertension
- C. Pedal edema and portal congestion
- D. Loud systolic ejection murmur
Correct answer: B
Rationale: The correct answer is B: Upper extremity hypertension. Coarctation of the aorta leads to increased blood pressure in the upper extremities. The pressure in the arms is typically 20 mm Hg higher than in the legs. Choice A, clubbing of the digits, is not a common clinical manifestation of coarctation of the aorta. Choice C, pedal edema, and portal congestion are more suggestive of conditions like heart failure rather than coarctation of the aorta. Choice D, loud systolic ejection murmur, can be heard in conditions like aortic stenosis, but it is not the most common clinical manifestation of coarctation of the aorta.
4. How is gastroesophageal reflux (GER) typically treated in infants?
- A. By placing the infant NPO
- B. By thickening the formula or breast milk with cereal
- C. By placing the infant to sleep on the side
- D. By switching the infant to cow's milk
Correct answer: B
Rationale: Gastroesophageal reflux (GER) in infants is typically treated by thickening the formula or breast milk with cereal. This helps reduce reflux episodes by making the feedings heavier and less likely to come back up. Placing the infant NPO (nothing by mouth) is not the typical treatment for GER as infants need proper nutrition for growth. Placing the infant to sleep on the side is not recommended due to the risk of SIDS; infants should be placed on their back to sleep. Switching the infant to cow's milk is also not a treatment for GER, as cow's milk can be harder to digest and may exacerbate symptoms.
5. 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.
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