Nokea
Where does the majority of chemical digestion in the stomach occur?
- A. fundus and body
- B. cardia and fundus
- C. body and pylorus
- D. body
Correct Answer: A
Rationale: The majority of chemical digestion in the stomach occurs in the fundus and body regions. These areas contain gastric glands that secrete hydrochloric acid and pepsinogen, which break down proteins. The fundus and body also mix and churn food to create chyme. The cardia and pylorus do not play a significant role in chemical digestion. The cardia is the entry point of the stomach and mainly responsible for food entry, while the pylorus regulates the release of chyme into the small intestine. The body region alone does not have as many gastric glands compared to the fundus and is mainly involved in mixing and storing food.
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Why should a nurse instruct a client with an ileostomy to avoid enteric-coated products?
- A. The coating prevents the absorption of the product.
- B. The coating adversely affects ileostomy.
- C. The coating affects the absorption of vitamins.
- D. The coating causes particularly strong odors.
Correct Answer: A
Rationale: The correct answer is A because enteric-coated products are designed to bypass the stomach and dissolve in the small intestine, where absorption of medications occurs. Since an ileostomy bypasses the large intestine, the medication in enteric-coated products may not be fully absorbed, leading to reduced effectiveness. Choices B, C, and D are incorrect because they do not directly relate to the specific issue of absorption in the context of an ileostomy.
Mandy, an adolescent girl is admitted to an acute care facility with severe malnutrition. After a thorough examination, the physician diagnoses anorexia nervosa. When developing the plan of care for this client, the nurse is most likely to include which nursing diagnosis?
- A. Hopelessness
- B. Powerlessness
- C. Chronic low self-esteem
- D. Deficient knowledge
Correct Answer: C
Rationale: The correct answer is C: Chronic low self-esteem. In anorexia nervosa, individuals often have distorted body image and low self-esteem, which contributes to their disordered eating behavior. By addressing the nursing diagnosis of chronic low self-esteem, the nurse can focus on interventions to help improve the client's self-worth and body image perception.
A: Hopelessness may be present in anorexia nervosa but chronic low self-esteem is more directly related to the disorder.
B: Powerlessness is not the primary nursing diagnosis in anorexia nervosa; it may be a secondary issue.
D: Deficient knowledge is not the main nursing diagnosis in anorexia nervosa; clients generally have knowledge about their condition but struggle with self-image and self-esteem.
A patient is receiving continuous enteral nutrition through a small-bore silicone feeding tube. What should the nurse plan for when this patient has a computed tomography (CT) scan ordered?
- A. Ask the health care provider to reschedule the scan.
- B. Shut the feeding off 30 to 60 minutes before the scan.
- C. Connect the feeding tube to continuous suction before and during the scan.
- D. Send a suction catheter with the patient in case of aspiration during the scan.
Correct Answer: B
Rationale: Rationale:
- Correct Answer (B): Shutting off the feeding 30-60 mins before the CT scan reduces the risk of aspiration or vomiting during the procedure, minimizing potential complications.
- Incorrect Answer (A): Rescheduling the scan is not necessary if feeding is temporarily stopped before the procedure.
- Incorrect Answer (C): Connecting the feeding tube to continuous suction is unnecessary and may lead to dehydration or electrolyte imbalances.
- Incorrect Answer (D): Sending a suction catheter with the patient is not a standard practice for CT scans; aspiration risk can be minimized by stopping the feeding temporarily.
Which of these processes occurs throughout most of the alimentary canal?
- A. ingestion
- B. propulsion
- C. segmentation
- D. absorption
Correct Answer: B
Rationale: The correct answer is B: propulsion. Propulsion is the process of moving food along the alimentary canal through peristalsis, which is the contraction and relaxation of muscles in the digestive tract. This process occurs throughout most of the alimentary canal, including the esophagus, stomach, small intestine, and large intestine. Ingestion (choice A) occurs at the beginning of the digestive process when food enters the mouth. Segmentation (choice C) is a mixing movement that occurs mainly in the small intestine to aid in digestion. Absorption (choice D) takes place primarily in the small intestine, where nutrients are absorbed into the bloodstream. Therefore, propulsion is the correct answer as it is the continuous movement of food along the digestive tract.
The salivary gland that produces primarily mucus is the ______ salivary gland.
- A. parotid
- B. labial
- C. submandibular
- D. sublingual
Correct Answer: D
Rationale: The correct answer is D: sublingual gland. This gland primarily produces mucus, aiding in lubrication and initial digestion. The sublingual gland is located under the tongue. A: The parotid gland primarily produces serous saliva. B: Labial glands are minor salivary glands located in the lips, producing mixed saliva. C: Submandibular gland produces a mixture of serous and mucous saliva.