Nursing Elites

1. The most important pathophysiologic factor contributing to the formation of esophageal varices is:

• A. Decreased prothrombin formation
• B. Decreased albumin formation by the liver
• C. Portal hypertension
• D. Increased central venous pressure

Correct answer: C

Rationale: Portal hypertension is the most important pathophysiologic factor contributing to the formation of esophageal varices.

2. A 30-year-old woman is admitted to the hospital with complaints of severe abdominal cramping and diarrhea. The nurse evaluates the effectiveness of the patient's intravenous therapy. Which of the following laboratory tests BEST reflects hydration status?

• A. Erythrocyte sedimentation rate.
• B. White blood cell count.
• C. Hematocrit.
• D. Serum glucose.

Correct answer: C

Rationale: Hematocrit is the best indicator of hydration status because it reflects the proportion of red blood cells in the blood. An increased hematocrit indicates dehydration, as the blood becomes more concentrated due to fluid loss. Erythrocyte sedimentation rate (Choice A) is a nonspecific marker of inflammation, not hydration status. White blood cell count (Choice B) is an indicator of infection or inflammation. Serum glucose (Choice D) is used to monitor blood sugar levels, not hydration status.

3. You have a patient with achalasia (incomplete muscle relaxation of the GI tract, especially sphincter muscles). Which medications do you anticipate to administer?

• A. Isosorbide dinitrate (Isordil)
• B. Digoxin (Lanoxin)
• C. Captopril (Capoten)
• D. Propanolol (Inderal)

Correct answer: A

Rationale: Isosorbide dinitrate (Isordil) is a medication used to relax the muscles of the GI tract in patients with achalasia.

4. A nurse orientee is preparing to insert a nasogastric tube, and a nurse educator is observing the procedure. Which of the following supplies if obtained by the nurse orientee would indicate a need for further education regarding this procedure?

• A. Half-inch or one-inch tape
• B. Oil-soluble lubricant
• C. A glass of tap water with a straw
• D. A 50-mL catheter tip syringe

Correct answer: B

Rationale: Water-soluble lubricant is used to lubricate 3 to 4 inches of the tube at the insertion end. An oil lubricant is not used because if the tube accidentally goes into the bronchus, pneumonia can develop. Half-inch tape is used to secure the tube after the correct placement is verified. A 50-mL catheter tip syringe is used to aspirate gastric contents to confirm placement. The client will be asked to take a sip of water through a straw to help with the passage of the tube.

5. You have to teach ostomy self care to a patient with a colostomy. You tell the patient to measure and cut the wafer:

• A. To the exact size of the stoma.
• B. About 1/16” larger than the stoma.
• C. About 1/8” larger than the stoma.
• D. About 1/4″ larger than the stoma.

Correct answer: C

Rationale: The wafer should be measured and cut about 1/8” larger than the stoma to ensure proper fit and prevent skin irritation.

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