Nokea
Bile contains all of the following except:
- A. Alkaline phosphatase +
- B. K
- C. Cholesterol
- D. CCK
Correct Answer: B
Rationale: Bile does not contain potassium (K) as it is not a component of bile. The correct answer is B. Alkaline phosphatase is present in bile and aids in digestion. Cholesterol is also found in bile. CCK (Cholecystokinin) is a hormone released by the small intestine to stimulate bile release. Potassium is not a part of the composition of bile.
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How should the nurse explain esomeprazole (Nexium) to a patient with recurring heartburn?
- A. It reduces gastroesophageal reflux by increasing the rate of gastric emptying.
- B. It neutralizes stomach acid and provides relief of symptoms in a few minutes.
- C. It coats and protects the lining of the stomach and esophagus from gastric acid.
- D. It treats gastroesophageal reflux disease by decreasing stomach acid production.
Correct Answer: D
Rationale: The correct answer is D because esomeprazole (Nexium) is a proton pump inhibitor that works by decreasing stomach acid production, thereby treating gastroesophageal reflux disease. This explanation is important for the patient to understand the mechanism of action of the medication.
Choice A is incorrect because esomeprazole does not increase the rate of gastric emptying; instead, it reduces acid production. Choice B is incorrect because esomeprazole does not neutralize stomach acid immediately; it takes a few days to reach its full effect. Choice C is incorrect because esomeprazole does not coat and protect the stomach and esophagus; it works by reducing acid production.
In summary, the correct answer is D because it accurately describes how esomeprazole works to manage recurring heartburn by decreasing stomach acid production, which is essential for treating gastroesophageal reflux disease.
Which type of gastritis is most likely to occur in a college student who has an isolated drinking binge?
- A. Acute gastritis
- B. Chronic gastritis
- C. Helicobacter pylori gastritis
- D. Autoimmune metaplastic atrophic gastritis
Correct Answer: A
Rationale: The correct answer is A: Acute gastritis. This type of gastritis is most likely to occur in a college student after an isolated drinking binge due to the irritation caused by excessive alcohol consumption on the stomach lining. The rapid onset of symptoms such as nausea, vomiting, and abdominal pain align with acute gastritis. Chronic gastritis (B) develops over time with prolonged irritation, not from a one-time binge. Helicobacter pylori gastritis (C) is typically associated with a bacterial infection rather than alcohol consumption. Autoimmune metaplastic atrophic gastritis (D) is a chronic condition associated with autoimmune reactions, not acute alcohol-induced irritation as seen in this scenario.
Gastric secretions:
- A. Decrease when a person thinks of food.
- B. Contain a substance which is essential for absorption of vitamin B12 from terminal ileum.
- C. Contain HCL secreted by chief cells.
- D. Are essential for fat digestion and absorption.
Correct Answer: B
Rationale: Step-by-step rationale:
1. Gastric secretions contain intrinsic factor, essential for vitamin B12 absorption from the terminal ileum.
2. Intrinsic factor binds to vitamin B12 to facilitate its absorption.
3. Without intrinsic factor, vitamin B12 absorption is impaired, leading to pernicious anemia.
4. Therefore, choice B is correct.
Summary:
- Choice A is incorrect as gastric secretions increase, not decrease, when a person thinks of food.
- Choice C is incorrect as hydrochloric acid (HCl) is secreted by parietal cells, not chief cells.
- Choice D is incorrect as fat digestion primarily occurs in the small intestine with the help of pancreatic enzymes, not gastric secretions.
The _____ prevents food from entering the small intestine.
- A. cardiac sphincter
- B. pyloric valve
- C. ileo-colic valve
- D. sphincter of Oddi
Correct Answer: B
Rationale: The correct answer is B: pyloric valve. The pyloric valve is located between the stomach and the small intestine, specifically at the junction of the stomach and the duodenum. Its main function is to regulate the flow of partially digested food from the stomach into the small intestine. This control is crucial to ensure that the small intestine receives food at a manageable rate for optimal digestion and absorption of nutrients. The cardiac sphincter (A) is located at the entrance of the stomach from the esophagus and prevents acid reflux. The ileo-colic valve (C) is located between the small and large intestines, controlling the flow of contents between them. The sphincter of Oddi (D) regulates the flow of bile and pancreatic juice into the small intestine.
A client is assessed for surgery for herniation. Why is it important that the nurse ask if the client smokes?
- A. Smoking increases the risk for development of malnutrition and diabetes
- B. Smoking interferes with lymphatic and venous blood flow
- C. The required medications are contraindicated in the presence of nicotine
- D. Sneezing and coughing due to smoking may increase intra-abdominal pressure
Correct Answer: D
Rationale: The correct answer is D because smoking can lead to chronic coughing and sneezing, which may increase intra-abdominal pressure. This can be detrimental post-surgery, especially in herniation cases where increased pressure can strain the surgical site, leading to complications like wound dehiscence or hernia recurrence. Choices A and B are incorrect as they do not directly relate to the impact of smoking on intra-abdominal pressure. Choice C is also incorrect as it focuses on medication contraindications rather than the physiological effects of smoking on surgical outcomes.