Disaccharides like sucrose, lactose, and maltose are digested primarily in the

Correct Answer: C

Rationale: The correct answer is C: brush border of the small intestine. Disaccharides are broken down into monosaccharides by specific enzymes located in the brush border of the small intestine. These enzymes include sucrase, lactase, and maltase. The breakdown of disaccharides into monosaccharides occurs in the final stage of carbohydrate digestion, allowing for absorption into the bloodstream. Choices A, B, and D are incorrect because disaccharides are not primarily digested in the stomach, the lumen of the small intestine, or the colon. The main site for disaccharide digestion is the brush border of the small intestine where these specific enzymes are located.

Correct Answer: D

Rationale: Step 1: Reuptake of the transmitter at the presynaptic terminal: This process involves the retrieval of excess neurotransmitter molecules back into the presynaptic neuron, preventing excessive accumulation in the synapse. Step 2: Enzymatic degradation of the transmitter within the synapse: Enzymes break down excess neurotransmitter molecules in the synapse, helping to maintain optimal levels and preventing overstimulation of the post synaptic terminal. Step 3: Negative feedback to inhibit further release of the transmitter: When neurotransmitter levels are high, negative feedback mechanisms can inhibit further release, preventing excessive accumulation and maintaining synaptic balance. Summary: - Option A and B are correct because reuptake and enzymatic degradation help prevent excessive accumulation of neurotransmitters. - Option C is also correct as negative feedback mechanisms play a role in regulating neurotransmitter release. - Therefore, the correct answer is D, as all of the above mechanisms work together to prevent excessive accumulation of neurotransmitters.

Correct Answer: C

Rationale: The correct answer is C because during moderate exercise, your body primarily relies on glycogen stores, not protein stores, for energy. Protein is not a preferred energy source during exercise as it is mainly used for structural and enzymatic functions. Muscle glycogen, muscle triglycerides, and plasma fatty acids are the main sources of energy at 65% VO2 max. Low-intensity exercise primarily utilizes fatty acids from plasma. Blood glucose stores can be depleted within about 15 minutes of very intense exercise due to high energy demands. Thus, choice C is false as protein stores are not the biggest energy source during moderate exercise.

Correct Answer: A

Rationale: Correct Answer: A - Assess for bowel sounds. Rationale: 1. Assessing for bowel sounds is the initial step to ensure proper placement before administering enteral feeding. 2. Bowel sounds indicate the tube is in the gastrointestinal tract, reducing the risk of aspiration. 3. This step precedes tube placement confirmation (auscultation and pH check), flushing, and reflushing. Summary: - Auscultating tube placement and checking pH (B) should follow assessing bowel sounds. - Flushing the tube with water (C) and reflushing (D) occur after confirming proper tube placement.

Correct Answer: A

Rationale: The correct answer is A: Advancing the diet slowly. This helps the client gradually build tolerance for fluids and foods, reducing the likelihood of exacerbating nausea and vomiting. Advancing the diet slowly allows the digestive system to adjust and minimizes gastrointestinal distress. Choice B (Discouraging caffeinated or carbonated beverages) can help reduce gastric irritation but does not directly address developing tolerance for fluids and foods. Choice C (Recommending commercial over-the-counter beverages) is not specific to helping the client develop tolerance. Choice D (Replacing dietary fat with MCTs) may be beneficial for some clients, but it does not directly address the client's ability to tolerate fluids and foods.