The lipids that can be absorbed across the epithelial wall of the small intestine are hydrophobic and would have a difficult time in the watery lumen to come in contact with the epithelial membrane. These lipids are able to move easily in the watery lumen because of interaction with

Correct Answer: C

Rationale: The correct answer is C: micelles. Micelles are formed when bile salts interact with hydrophobic lipids, such as triglycerides, in the watery lumen of the small intestine. This interaction allows the lipids to be emulsified and solubilized in the watery environment, making it easier for them to come in contact with the epithelial membrane for absorption. Lipase (B) is an enzyme that breaks down lipids but does not aid in the movement of lipids in the watery lumen. Bile salts (A) help emulsify lipids but do not facilitate the movement of lipids in the watery lumen. Chylomicrons (D) are large lipoprotein particles formed after absorption of lipids into enterocytes, not involved in the initial movement of lipids in the watery lumen.

Correct Answer: C

Rationale: The correct answer is C because inhibition of the dopamine network is not associated with drug addictions; rather, it is often linked to reward, pleasure, and reinforcement in addiction. Parkinson's disease is associated with a loss of the dopamine network (A), cholinesterase inhibitors increase acetylcholine levels to treat Alzheimer's symptoms (B), and some stimulants work through the activation of the norepinephrine network (D).

Correct Answer: D

Rationale: The correct answer is D because all three statements are true. A is supported by research showing lower risk of death from breast cancer in higher aerobic fitness groups. B is backed by studies indicating increased brain volume with aerobic exercise in the elderly. C is also true, as higher aerobic fitness levels are associated with reduced risk of colon cancer. Therefore, option D is the correct choice as none of the statements are false.

Correct Answer: A

Rationale: In caring for a client with acute viral hepatitis, it is crucial to understand the scope of practice for different healthcare team members to ensure safe and effective patient care. Delegating tasks to nursing assistants should be based on their level of training and competency. Option A, emptying the bedpan while wearing gloves, is the most appropriate task to delegate to a nursing assistant in this scenario. This task involves basic hygiene and infection control measures that align with the nursing assistant's skill set and can help prevent the spread of infection. Options B, suggesting diversional activities, and C, monitoring dietary preferences, involve aspects of emotional support and dietary management that require a higher level of assessment and critical thinking skills typically performed by licensed nursing staff such as registered nurses or licensed practical nurses. Option D, reporting signs and symptoms of jaundice, involves recognizing clinical manifestations that may indicate a worsening condition in the client. This task requires interpretation of clinical data and prompt communication with the healthcare team, making it more appropriate for a licensed nurse who can make clinical judgments. Educationally, this question highlights the importance of understanding delegation principles in healthcare settings. It emphasizes the need to match tasks with the appropriate skill level of the healthcare team member to ensure safe and efficient patient care while promoting teamwork and collaboration among the healthcare team.

Correct Answer: B

Rationale: The correct answer is B) Administering 15 to 30 ml of water before and after medications and feedings. This amount of water is recommended to ensure tube patency by flushing the tube adequately without causing excessive distention. Providing less water (options A and D) may not be sufficient to clear the tube effectively, leading to potential blockages. On the other hand, administering more water (option C) than necessary may increase the risk of aspiration or cause discomfort to the patient. Educationally, understanding the importance of proper tube maintenance in gastrointestinal care is crucial for healthcare professionals working with patients requiring enteral feeding or medication administration through tubes. Adequate hydration of the tube helps prevent blockages, reduces the risk of bacterial growth, and ensures the safe and effective delivery of nutrients and medications. It is essential to follow evidence-based guidelines to promote optimal patient outcomes and prevent complications related to enteral tube feeding.