Nursing Elites

1. A client has been diagnosed with gastroesophageal reflux disease. The nurse interprets that the client has dysfunction of which of the following parts of the digestive system?

• A. Chief cells of the stomach
• B. Parietal cells of the stomach
• C. Lower esophageal sphincter
• D. Upper esophageal sphincter

Correct answer: C

Rationale: The lower esophageal sphincter is a functional sphincter that normally remains closed except when food or fluids are swallowed. If relaxation of this sphincter occurs, the client could experience symptoms of gastroesophageal reflux disease.

2. Jason, a 22 y.o. accident victim, requires an NG tube for feeding. What should you immediately do after inserting an NG tube for liquid enteral feedings?

• A. Aspirate for gastric secretions with a syringe.
• B. Begin feeding slowly to prevent cramping.
• C. Get an X-ray of the tip of the tube within 24 hours.
• D. Clamp off the tube until the feedings begin.

Correct answer: A

Rationale: Immediately after inserting an NG tube for enteral feedings, aspirate for gastric secretions to confirm proper placement.

3. Which of the following laboratory results would be expected in a client with peritonitis?

• A. Partial thromboplastin time above 100 seconds
• B. Hemoglobin level below 10 mg/dL
• C. Potassium level above 5.5 mEq/L
• D. White blood cell count above 15,000

Correct answer: D

Rationale: A white blood cell count above 15,000 is indicative of an infection, such as peritonitis.

4. Crohn’s disease can be described as a chronic relapsing disease. Which of the following areas in the GI system may be involved with this disease?

• A. The entire length of the large colon
• B. Only the sigmoid area
• C. The entire large colon through the layers of mucosa and submucosa
• D. The small intestine and colon; affecting the entire thickness of the bowel

Correct answer: D

Rationale: Crohn's disease can affect any part of the gastrointestinal tract from the mouth to the anus, but it commonly affects the small intestine and colon, involving the entire thickness of the bowel wall.

5. 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.

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