Nokea
Which of the following is a major site of nutrient absorption?
- A. duodenum
- B. jejunum
- C. ileum
- D. colon
Correct Answer: B
Rationale: The correct answer is B: jejunum. The jejunum is a major site of nutrient absorption in the small intestine due to its extensive surface area and presence of villi and microvilli that facilitate absorption of nutrients like carbohydrates, proteins, and fats. The duodenum primarily functions in digestion, the ileum mainly absorbs vitamin B12 and bile salts, and the colon absorbs water and electrolytes. Therefore, the jejunum is the correct choice for being a major site of nutrient absorption.
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Bile facilitates digestion by causing the _____ of fats.
- A. hydrolysis
- B. digestion
- C. catalysis
- D. emulsification
Correct Answer: D
Rationale: Bile facilitates digestion by emulsifying fats, breaking them down into smaller droplets for better absorption. Emulsification increases the surface area of fats for enzymes to work on. Hydrolysis (A) is the breakdown of molecules by adding water, not specific to fats. Digestion (B) is a general term encompassing all processes, not specific to fats. Catalysis (C) refers to the process of speeding up chemical reactions but doesn't specifically relate to fats like emulsification does.
An 82-year-old man is admitted with an acute attack of diverticulitis. What should the nurse include in his care?
- A. Monitor for signs of peritonitis.
- B. Treat with daily medicated enemas.
- C. Prepare for surgery to resect the involved colon.
- D. Provide a heating pad to apply to the left lower quadrant.
Correct Answer: A
Rationale: The correct answer is A: Monitor for signs of peritonitis. Peritonitis is a serious complication of diverticulitis that can result from a rupture of inflamed diverticula leading to abdominal infection. Monitoring for signs such as severe abdominal pain, rigidity, and fever is crucial for early detection and prompt intervention. Option B is incorrect as daily medicated enemas are not the standard treatment for diverticulitis. Option C is also incorrect as surgery is usually reserved for complicated cases or recurrent attacks. Option D is incorrect because applying a heating pad may exacerbate inflammation and is not recommended in diverticulitis management.
In planning the post-operative care for a morbidly obese client, how can the expertise of the LPN/LVN best be applied?
- A. Obtain an oversized blood pressure cuff and a large-size bed.
- B. Set up a reinforced trapeze bar.
- C. Assist in the planning of bathing, turning, and ambulation.
- D. Design alternatives for routine tasks such as daily weights.
Correct Answer: C
Rationale: The correct answer is C because LPN/LVNs can assist in planning bathing, turning, and ambulation for a morbidly obese client. This is crucial in preventing complications such as pressure ulcers, deep vein thrombosis, and respiratory issues. LPN/LVNs can provide physical support and guidance to ensure the client's safety and comfort during these activities.
Choice A is incorrect because obtaining oversized equipment is not the primary role of LPN/LVNs. Choice B is also incorrect as setting up a reinforced trapeze bar is more of a facility management task. Choice D is incorrect as designing alternatives for routine tasks is not within the scope of practice for LPN/LVNs.
Treatment of the patient with appendicitis includes:
- A. Transfusion to replace blood loss.
- B. Bowel prep for cleansing.
- C. Surgical removal of appendix.
- D. Medications to lower pH within the stomach.
Correct Answer: C
Rationale: The correct answer is C: Surgical removal of appendix. Appendicitis is inflammation of the appendix, which requires surgical intervention (appendectomy) to prevent rupture and potential life-threatening complications. Transfusion (A) is not a standard treatment for appendicitis unless severe bleeding occurs post-surgery. Bowel prep (B) is unnecessary for appendicitis treatment as it is not related to colon cleansing. Medications to lower stomach pH (D) are used to treat conditions like acid reflux, not appendicitis. In summary, surgical removal of the inflamed appendix is the definitive treatment for appendicitis to prevent complications.
Which one of the following does not occur during swallowing?
- A. The larynx raises.
- B. The epiglottis moves anteriorly to close the glottis.
- C. The uvula and soft palate move inferiorly to block the oropharynx.
- D. The vestibular folds move medially.
Correct Answer: C
Rationale: The correct answer is C because the uvula and soft palate actually move superiorly, not inferiorly, during swallowing to close off the nasopharynx and prevent food or liquid from entering the nasal cavity. A) The larynx raises to prevent food from entering the trachea. B) The epiglottis moves anteriorly to cover the glottis and prevent aspiration. D) The vestibular folds move laterally to help seal off the airway during swallowing.