Nokea
A large number of children at a public school have developed profuse diarrhea and bloody stools. The school nurse suspects food poisoning related to food from the school cafeteria and requests analysis and culture of which food?
- A. Chicken
- B. Ground beef
- C. Commercially canned fish
- D. Salads with mayonnaise dressing
Correct Answer: B
Rationale: Ground beef is commonly associated with foodborne illnesses caused by E. coli, which can result in bloody diarrhea.
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It is correct to say that:
- A. HCL converts pepsin into pepsinogen.
- B. IF is essential for vitamin K absorption.
- C. Saliva contains alpha amylase.
- D. Myenteric plexus controls GIT secretion.
Correct Answer: C
Rationale: The correct answer is C: Saliva contains alpha amylase. Saliva does indeed contain the enzyme alpha amylase, which helps in the breakdown of carbohydrates in the mouth. This is a well-established fact in human physiology.
Explanation for why other choices are incorrect:
A: HCL converts pepsin into pepsinogen - This statement is incorrect as pepsinogen is converted into pepsin by the acidic environment in the stomach, not the other way around.
B: IF is essential for vitamin K absorption - This is also incorrect. Intrinsic factor (IF) is essential for the absorption of vitamin B12, not vitamin K.
D: Myenteric plexus controls GIT secretion - While the myenteric plexus is involved in regulating gastrointestinal motility, it is not primarily responsible for controlling secretion in the gastrointestinal tract.
In a radical pancreaticoduodenectomy (Whipple procedure) for treatment of cancer of the pancreas, what anatomic structure is completely resected that will affect the patient's nutritional status?
- A. Stomach
- B. Pancreas
- C. Common bile duct
- D. Duodenum adjoining the pancreas
Correct Answer: D
Rationale: The Whipple procedure involves the removal of the duodenum, which plays a key role in digestion and nutrient absorption.
A patient's peripheral parenteral nutrition (PN) bag is nearly empty, and a new PN bag has not arrived yet from the pharmacy. Which intervention by the nurse is appropriate?
- A. Monitor the patient's capillary blood glucose every 6 hours.
- B. Infuse 5% dextrose in water until a new PN bag is delivere
- D. Decrease the PN infusion rate to 10 mL/hr until a new bag arrives.
Correct Answer: B
Rationale: Correct Answer: B
Rationale:
1. Infusing 5% dextrose in water will provide the patient with necessary calories and prevent hypoglycemia until the new PN bag arrives.
2. Dextrose infusion will help maintain glucose levels and prevent metabolic complications.
3. Monitoring capillary blood glucose every 6 hours (Choice A) may not provide immediate support to prevent hypoglycemia.
4. Decreasing the PN infusion rate (Choice D) may lead to inadequate nutrition and compromise patient's metabolic needs.
A nurse is planning care for a client who is to start receiving total parenteral nutrition (TPN). Which of the following interventions should the nurse include in the plan of care?
- A. Use a 1.2 micron filter when infusing TPN with fat emulsions added.
- B. Allow 18 hr for the lipids to infuse when not mixed with the TPN solution.
- C. Change the TPN solution after 36 hr.
- D. Change the TPN tubing every 48 hr.
Correct Answer: D
Rationale: The correct answer is D: Change the TPN tubing every 48 hr. This is essential to prevent bacterial growth and infection, maintaining the integrity of the TPN solution. Regular tubing changes reduce the risk of contamination and ensure patient safety.
A: Using a 1.2 micron filter is not directly related to tubing changes and is not a primary concern for TPN administration.
B: Allowing 18 hr for lipids to infuse is not a standard practice and does not address the need for tubing changes.
C: Changing the TPN solution after 36 hr is not a standard guideline and may not be necessary unless specific factors indicate a need for a change.
After an esophageal surgery, a client exhibited the symptoms of dyspne What should a nurse do to minimize dyspnea?
- A. Ensure the intake of soft foods or high-calorie, high-protein semiliquid foods
- B. Advise avoidance of foods that contain significant air or gas
- C. Ensure frequent, small meals and discourage lying down immediately after eating
- D. Instruct to take liquid supplements between meals
Correct Answer: C
Rationale: Small, frequent meals and avoiding lying down after eating help prevent reflux and aspiration, which can contribute to dyspnea.