The nurse is obtaining a history of a patient with hepatitis Which question is most appropriate for the nurse to ask?
- A. "If using drugs, do you share needles?"
- B. "Do you always practice safe sex?"
- C. "You traveled to Canada in the last month?"
- D. "Do you eat shellfish often?"
Correct Answer: D
Rationale: The correct answer is D because consuming contaminated shellfish can lead to Hepatitis A infection. It is important to ask about dietary habits to identify potential sources of infection. Choice A is incorrect as it assumes drug use, which may not be relevant to the patient. Choice B is more focused on sexual behavior rather than Hepatitis transmission. Choice C is irrelevant unless there was a known Hepatitis outbreak in Canada.
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The enzymes present in pancreatic juice are
- A. Amylase, Trypsinogen, Peptidase, Rennin
- B. Trypsinogen, Lipase, Amylase, Procarbo xypeptidase
- C. Peptidase, Pepsin, Amylase, Rennin
- D. Maltase, Amylase, Trypsinogen, Pepsin
Correct Answer: B
Rationale: The correct answer is B because pancreatic juice contains enzymes such as Trypsinogen, Lipase, Amylase, and Procarboxypeptidase. Trypsinogen helps in protein digestion, Lipase breaks down fats, Amylase digests carbohydrates, and Procarboxypeptidase aids in protein digestion.
Choice A is incorrect because it includes Rennin, which is not typically found in pancreatic juice. Choice C is incorrect because Pepsin is a stomach enzyme, not found in pancreatic juice. Choice D is incorrect because Maltase is an enzyme found in the small intestine, not in pancreatic juice.
The absorption of fructose by intestinal mucosa is
- A. co- transport mechanism
- B. simple diffusion
- C. facilitated transport
- D. active transport
Correct Answer: C
Rationale: The correct answer is C: facilitated transport. Fructose is absorbed through facilitated diffusion using specific carrier proteins in the intestinal mucosa. This process does not require energy input and allows fructose to move down its concentration gradient. Unlike active transport (requiring energy) and co-transport mechanisms (involving multiple substances), fructose absorption occurs through facilitated transport by specific carrier proteins. Simple diffusion is not the main mechanism for fructose absorption due to its hydrophilic nature. Thus, facilitated transport best describes how fructose is absorbed by the intestinal mucosa.
Cholecystokinin (CCK):
- A. is secreted by the gastric antrum.
- B. is inhibited by excess fat in the duodenum.
- C. Stimulates pancreatic acini to secrete enzymes.
- D. inhibits gallbladder evacuation.
Correct Answer: C
Rationale: The correct answer is C because Cholecystokinin (CCK) is a hormone secreted by the duodenum in response to the presence of fats and proteins. It stimulates the pancreatic acini to secrete digestive enzymes such as lipase and proteases. This helps in the digestion and absorption of fats and proteins. The other choices are incorrect because A is false - CCK is secreted by the duodenum, not the gastric antrum. B is false - CCK is actually stimulated by the presence of fats in the duodenum. D is false - CCK actually stimulates gallbladder contraction to release bile, aiding in fat digestion.
Where does the majority of nutrient absorption occur in the digestive system?
- A. Mouth
- B. Stomach
- C. Small intestine
- D. Large intestine
Correct Answer: C
Rationale: The majority of nutrient absorption occurs in the small intestine. Here's the rationale:
1. The small intestine is where most digestion and absorption of nutrients occur due to its large surface area.
2. Villi and microvilli in the small intestine increase the absorption surface for nutrients like carbohydrates, proteins, and fats.
3. Specific enzymes and bile are secreted in the small intestine to aid in the breakdown and absorption of nutrients.
4. The large intestine primarily absorbs water and electrolytes, not nutrients.
In summary, the mouth is mainly for mechanical digestion, the stomach primarily digests food, and the large intestine absorbs water, making the small intestine the correct choice for nutrient absorption.
Following a laparoscopic cholecystectomy, what should the nurse expect to be part of the plan of care?
- A. Return to work in 2 to 3 weeks
- B. Be hospitalized for 3 to 5 days postoperatively
- C. Have a T-tube placed in the common bile duct to provide bile drainage
- D. Have up to four small abdominal incisions covered with small dressings
Correct Answer: D
Rationale: The correct answer is D. After a laparoscopic cholecystectomy, the patient typically has up to four small abdominal incisions that are covered with small dressings. This is because laparoscopic cholecystectomy is a minimally invasive procedure involving small incisions, which do not require extensive wound care. The incisions are small and usually heal well with minimal scarring.
Explanation for why other choices are incorrect:
A: Return to work in 2 to 3 weeks - This is not part of the immediate postoperative plan of care. Patients may need more time to recover before returning to work.
B: Be hospitalized for 3 to 5 days postoperatively - Patients undergoing laparoscopic cholecystectomy typically have a shorter hospital stay, usually 1 to 2 days, not 3 to 5 days.
C: Have a T-tube placed in the common bile duct to provide bile drainage - This is not typically done after a laparoscopic