Nursing Elites

1. Hepatic encephalopathy develops when the blood level of which substance increases?

• A. Ammonia
• B. Amylase
• C. Calcium
• D. Potassium

Correct answer: A

Rationale: Hepatic encephalopathy develops when the blood level of ammonia increases.

2. Which of the following techniques would the nurse use first to determine if a nasogastric tube is positioned in the stomach?

• A. Aspirating with a syringe and observing for the return of gastric contents.
• B. Irrigating with normal saline and observing for the return of solution.
• C. Placing the tube's free end in water and observing for air bubbles.
• D. Instilling air and auscultating over the epigastric area for the presence of the tube.

Correct answer: A

Rationale: The initial way to determine if a nasogastric tube is in the stomach is to apply suction to the tube with a syringe and observe for the return of stomach contents. Then the pH of the aspirate can be measured. This is the method of choice. One would not irrigate until tube placement is confirmed. Observing for air bubbles when the free end of the tube is placed under water is an unacceptable, unsafe method of determining tube placement. Another method is to instill air into the tube with a syringe while auscultating over the epigastric area. Hearing the air enter the stomach helps ensure proper placement, but the method is not foolproof and is no longer considered an effective or preferred way to determine placement.

3. Risk factors for the development of hiatal hernias are those that lead to increased abdominal pressure. Which of the following complications DOES NOT cause increased abdominal pressure?

• A. Obesity
• B. Volvulus
• C. Constipation
• D. Intestinal obstruction

Correct answer: B

Rationale: Obesity, constipation, and intestinal obstruction can all lead to increased abdominal pressure, which in turn can cause a hiatal hernia.

4. Kevin has a history of peptic ulcer disease and vomits coffee-ground emesis. What does this indicate?

• A. He has fresh, active upper GI bleeding.
• B. He needs immediate saline gastric lavage.
• C. His gastric bleeding occurred 2 hours earlier.
• D. He needs a transfusion of packed RBC’s.

Correct answer: C

Rationale: Coffee-ground emesis indicates that the gastric bleeding occurred 2 hours earlier.

5. A client with peptic ulcer is scheduled for a Vagotomy. The client asks the nurse about the purpose of this procedure. The nurse tells the client that the procedure

• A. Decreases food absorption in the stomach.
• B. Heals the gastric mucosa.
• C. Halts stress reactions.
• D. Reduces the stimulus to acid secretions.

Correct answer: D

Rationale: A vagotomy, or cutting of the vagus nerve, is done to eliminate parasympathetic stimulation of gastric secretion, thereby reducing the stimulus to acid secretions. Options A, B, and C are incorrect as a vagotomy does not affect food absorption, heal the gastric mucosa, or halt stress reactions.

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