HESI LPN
HESI Test Bank Medical Surgical Nursing
1. A client with peptic ulcer disease is prescribed sucralfate. What is the mechanism of action of this medication?
- A. Neutralizes stomach acid
- B. Decreases gastric acid secretion
- C. Covers the ulcer site and protects it from acid
- D. Improves gastric motility
Correct answer: C
Rationale: The correct answer is C: Covers the ulcer site and protects it from acid. Sucralfate works by forming a protective barrier over ulcers, shielding them from stomach acid and promoting healing. Choice A, neutralizing stomach acid, is incorrect as sucralfate does not neutralize acid but acts as a physical barrier. Choice B, decreasing gastric acid secretion, is not the mechanism of action of sucralfate. Choice D, improving gastric motility, is unrelated to sucralfate's action on peptic ulcers.
2. The nurse is completing the preoperative assessment of a client who is scheduled for a laparoscopic cholecystectomy under general anesthesia. Which finding warrants notification of the HCP prior to proceeding with the scheduled procedure?
- A. Light yellow coloring of the client's skin and eyes.
- B. The client's blood pressure reading of 184/88 mm Hg.
- C. The client vomits 20 ml of clear yellowish fluid.
- D. The IV insertion site is red, swollen, and leaking IV fluid.
Correct answer: B
Rationale: The correct answer is B. A blood pressure reading of 184/88 mm Hg indicates hypertension, which can increase the risks associated with surgery. The healthcare provider should be notified to manage the blood pressure before proceeding with the scheduled procedure. Choices A, C, and D are incorrect: A, light yellow coloring of the client's skin and eyes may indicate jaundice, but it is not an immediate concern for the scheduled procedure; C, vomiting clear yellowish fluid may suggest bile reflux, but it does not pose an immediate risk to the procedure; D, red, swollen, and leaking IV insertion site indicates a local complication that requires intervention but does not have a direct impact on proceeding with the scheduled surgery.
3. Based on this strip, what is the interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Ventricular tachycardia.
- C. Normal sinus rhythm.
- D. Second-degree heart block.
Correct answer: C
Rationale: The correct answer is C, Normal sinus rhythm. Normal sinus rhythm is characterized by a regular rhythm, normal P waves, and a consistent PR interval. In this context, the strip likely shows a normal ECG pattern with these characteristics, indicating a healthy heart rhythm. Choices A, B, and D are incorrect. Atrial fibrillation would show an irregularly irregular rhythm with no discernible P waves. Ventricular tachycardia would display wide QRS complexes and a fast heart rate. Second-degree heart block would exhibit intermittent dropped QRS complexes.
4. What is a causative factor of Hirschsprung disease?
- A. Frequent evacuation of solids, liquid, and gases
- B. Excessive peristaltic movement
- C. The absence of parasympathetic ganglion cells in a portion of the colon
- D. One portion of the bowel telescoping into another
Correct answer: C
Rationale: The correct answer is C: The absence of parasympathetic ganglion cells in a portion of the colon is a causative factor of Hirschsprung disease. This absence leads to the inability of the affected segment of the colon to relax, causing a functional obstruction. Choices A, B, and D are incorrect. Frequent evacuation of solids, liquid, and gases, excessive peristaltic movement, and one portion of the bowel telescoping into another are not causative factors of Hirschsprung disease.
5. 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.
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