Nokea
Which enzyme is responsible for breaking down proteins in the stomach?
- A. Amylase
- B. Protease
- C. Lipase
- D. Pepsin
Correct Answer: D
Rationale: Pepsin is the correct answer as it is the enzyme specifically produced by gastric chief cells in the stomach to break down proteins into peptides. It works optimally in the acidic environment of the stomach. Amylase (choice A) breaks down carbohydrates, protease (choice B) refers to a general term for enzymes that break down proteins, and lipase (choice C) breaks down fats, making them incorrect for this question.
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Atrophy of the gastric mucosal glands is likely to result in:
- A. Diminished digestion of starch
- B. Failure of digestion and absorption of proteins
- C. High gastrin levels in the blood
- D. High secretin levels in the blood
Correct Answer: B
Rationale: The correct answer is B: Failure of digestion and absorption of proteins. Atrophy of gastric mucosal glands leads to decreased production of hydrochloric acid and pepsin, essential for protein digestion. This results in impaired breakdown of proteins, leading to failure of digestion and absorption. Choice A is incorrect as starch digestion primarily occurs in the mouth and small intestine. Choice C is incorrect because high gastrin levels are associated with increased acid production. Choice D is incorrect as secretin is not directly involved in protein digestion.
Which female patient is most likely to have metabolic syndrome?
- A. BP 128/78 mm Hg, triglycerides 160 mg/dL, fasting blood glucose 102 mg/dL
- B. BP 142/90 mm Hg, high-density lipoproteins 45 mg/dL, fasting blood glucose 130 mg/dL
- C. Waist circumference 36 in, triglycerides 162 mg/dL, high-density lipoproteins 55 mg/dL
- D. Waist circumference 32 in, high-density lipoproteins 38 mg/dL, fasting blood glucose 122 mg/dL
Correct Answer: B
Rationale: The correct answer is B because the patient's blood pressure, HDL levels, and fasting blood glucose levels all indicate a higher likelihood of metabolic syndrome. High blood pressure, low HDL levels, and elevated blood glucose are key components of metabolic syndrome.
Option A has normal blood pressure and slightly elevated triglycerides and blood glucose, but not as concerning as choice B.
Option C has a normal blood pressure, slightly elevated triglycerides, and good HDL levels, which lowers the likelihood of metabolic syndrome.
Option D has a normal blood pressure, very low HDL levels, and slightly elevated blood glucose, but the blood pressure is not in the hypertensive range as in choice B.
In report, the nurse learns that the patient has a transverse colostomy. What should the nurse expect when providing care for this patient?
- A. Semiliquid stools with increased fluid requirements
- B. Liquid stools in a pouch and increased fluid requirements
- C. Formed stools with a pouch, needing irrigation, but no fluid needs
- D. Semiformed stools in a pouch with the need to monitor fluid balance
Correct Answer: A
Rationale: The correct answer is A: Semiliquid stools with increased fluid requirements. A transverse colostomy is located in the upper part of the colon, where stool consistency is more liquid. This type of colostomy typically produces semiliquid stools due to the shorter transit time in the colon, leading to increased fluid requirements to prevent dehydration.
Summary of other choices:
B: Liquid stools in a pouch and increased fluid requirements - Incorrect because transverse colostomies produce semiliquid stools, not entirely liquid.
C: Formed stools with a pouch, needing irrigation, but no fluid needs - Incorrect as transverse colostomies do not produce formed stools, and fluid intake is necessary.
D: Semiformed stools in a pouch with the need to monitor fluid balance - Incorrect because transverse colostomies produce semiliquid stools, not semiformed, and increased fluid intake is needed.
Eleanor, a 62 y.o. woman with diverticulosis is your patient. Which interventions would you expect to include in her care?
- A. Low-fiber diet and fluid restrictions.
- B. Total parenteral nutrition and bed rest.
- C. High-fiber diet and administration of psyllium.
- D. Administration of analgesics and antacids.
Correct Answer: C
Rationale: Rationale:
C is correct as high-fiber diet helps prevent diverticulitis episodes. Psyllium adds bulk to stool, reducing strain on the colon. A is incorrect as low-fiber diet worsens diverticulosis. B is inappropriate as TPN is not first-line and bed rest can worsen symptoms. D is incorrect as analgesics and antacids do not address the underlying cause.
The _____ duct directly receives the fluids from the gallbladder.
- A. cystic
- B. common bile
- C. hepatic
- D. common hepatic
Correct Answer: A
Rationale: The correct answer is A: cystic duct. The cystic duct directly receives the fluids from the gallbladder and connects it to the common bile duct. The cystic duct is responsible for carrying bile from the gallbladder to the digestive system. Choices B, C, and D are incorrect because the common bile duct carries a mixture of bile from the liver and gallbladder, the hepatic duct connects the liver to the common bile duct, and the common hepatic duct connects the liver to the gallbladder, respectively. Therefore, the cystic duct is the only duct directly receiving fluids from the gallbladder.