Nursing Elites

1. Which of the following statements about Helicobacter pylori (H. pylori) is false?

• A. H. pylori does not invade the gastric or duodenal epithelium
• B. H. pylori stimulates gastric acid secretion
• C. Eradication of H. pylori prevents adenocarcinoma of the stomach
• D. H. pylori produces a urease that splits urea into ammonia and CO2

Correct answer: C

Rationale: H. pylori is known to reside in the mucus layer of the stomach and does not invade the epithelium. It produces urease that splits urea into ammonia and CO2. This action helps in neutralizing the acidic environment and allows H. pylori to survive. Additionally, urease activity can be detected in diagnostic tests for H. pylori. The stimulation of gastric acid secretion and disruption of the protective mucus layer are mechanisms by which H. pylori promotes injury. While eradicating H. pylori infection has been associated with a decreased risk of developing gastric cancer, it does not prevent adenocarcinoma of the stomach entirely.

2. A client with a history of asthma is prescribed salmeterol (Serevent). Which instruction should the nurse provide?

• A. Use this medication for acute asthma attacks.
• B. Use this medication before using your albuterol inhaler.
• C. Use this medication twice daily for long-term control.
• D. Use this medication as needed for wheezing.

Correct answer: C

Rationale: The correct instruction for a client prescribed salmeterol (Serevent) is to use it twice daily for long-term control. Salmeterol is a long-acting bronchodilator that is not intended for acute asthma attacks or as-needed use for wheezing. Choice A is incorrect because salmeterol is not used for acute asthma attacks. Choice B is incorrect as salmeterol is not meant to replace the albuterol inhaler but rather used for long-term control. Choice D is incorrect because salmeterol should not be used as needed; it is a maintenance medication for asthma.

3. The client with a history of heart failure is taking furosemide (Lasix). Which laboratory result should the nurse monitor closely?

• A. Serum sodium.
• B. Serum potassium.
• C. Serum calcium.
• D. Serum magnesium.

Correct answer: B

Rationale: Furosemide (Lasix) is a loop diuretic that can lead to potassium loss, causing hypokalemia. Monitoring serum potassium levels is crucial to prevent complications such as cardiac dysrhythmias associated with low potassium levels.

4. A client with liver cirrhosis is prescribed lactulose. What is the purpose of this medication?

• A. To lower blood sugar levels
• B. To reduce ammonia levels
• C. To treat liver inflammation
• D. To improve bile flow

Correct answer: B

Rationale: Lactulose is prescribed to reduce ammonia levels in clients with liver cirrhosis. Elevated ammonia levels can lead to hepatic encephalopathy, a serious complication of liver cirrhosis. Lactulose works by acidifying the colon, which in turn traps ammonia in the colon and helps its elimination from the body through stool, thereby reducing the risk of hepatic encephalopathy. Choice A is incorrect because lactulose does not lower blood sugar levels. Choice C is incorrect as lactulose is not used to treat liver inflammation. Choice D is incorrect as lactulose does not improve bile flow.

5. The healthcare provider in the outpatient clinic has obtained health histories for these new patients. Which patient may need referral for genetic testing?

• A. 35-year-old patient whose maternal grandparents died after strokes at ages 90 and 96
• B. 18-year-old patient with a positive pregnancy test whose first child has cerebral palsy
• C. 34-year-old patient who has a sibling with newly diagnosed polycystic kidney disease
• D. 50-year-old patient with a history of cigarette smoking who is complaining of dyspnea

Correct answer: C

Rationale: The 34-year-old patient who has a sibling with newly diagnosed polycystic kidney disease may need referral for genetic testing. Polycystic kidney disease is an autosomal dominant disorder that can be asymptomatic until later in life. Presymptomatic testing can provide valuable information for guiding lifestyle and family planning decisions. The other patients do not present indications for genetic testing based on the information provided in their health histories. The 35-year-old patient's maternal grandparents' strokes are not indicative of a need for genetic testing. The 18-year-old patient's child having cerebral palsy is not a direct indication for genetic testing of the patient herself. The 50-year-old patient's symptoms are more likely related to smoking and respiratory issues, not genetic predisposition to a specific disease.

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