Nokea
The Kupffer cells are phagocytic cells found in the _____.
- A. gallbladder
- B. pancreas
- C. intestine
- D. liver
Correct Answer: D
Rationale: The correct answer is D: liver. Kupffer cells are specialized macrophages found in the liver, where they play a crucial role in phagocytosis and immune responses. They help remove debris, toxins, and pathogens from the blood. The other options (A: gallbladder, B: pancreas, C: intestine) are incorrect because Kupffer cells are not typically present in these organs. The liver is the main site for Kupffer cells due to its role in filtering and processing blood.
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The painful or burning sensation in the chest usually associated with acid reflux in the esophagus is called
- A. a peptic ulcer.
- B. heart burn.
- C. angina.
- D. a duodenal ulcer.
Correct Answer: B
Rationale: The correct answer is B: heartburn. This is because heartburn is the common term for the painful or burning sensation in the chest caused by acid reflux in the esophagus. A peptic ulcer (A) and a duodenal ulcer (D) are sores in the stomach or small intestine, not specific to the chest area. Angina (C) is chest pain related to heart issues, not specifically caused by acid reflux. Therefore, B is the correct answer.
A nurse is doing discharge teaching on a client with a colostomy. What would the nurse convey to the client regarding when is the best time to perform irrigation?
- A. After a meal.
- B. After a bowel movement.
- C. During a meal.
- D. Two hours before a meal.
Correct Answer: D
Rationale: The correct answer is D: Two hours before a meal. This timing allows for the colon to be relatively empty, making irrigation more effective. Irrigating two hours before a meal helps to prevent interference with digestion and absorption processes. Irrigating after a meal (choice A) or during a meal (choice C) may lead to discomfort, bloating, or potential leakage. Irrigating after a bowel movement (choice B) may not provide enough time for the colon to be adequately empty for effective irrigation.
Which patient is at highest risk for having a gastric ulcer?
- A. 55-year-old female, smoker, with nausea and vomiting
- B. 45-year-old female admitted for illicit drug detoxification
- C. 37-year-old male, smoker, who fell while looking for a job
- D. 27-year old male who is being divorced and has back pain
Correct Answer: A
Rationale: The correct answer is A because a 55-year-old female who is a smoker and experiencing symptoms of nausea and vomiting has multiple risk factors for developing a gastric ulcer. Smoking and older age are established risk factors for gastric ulcers. Nausea and vomiting can be indicative of underlying gastrointestinal issues.
Choice B is less likely as illicit drug use typically does not directly increase the risk of gastric ulcers.
Choice C is less likely as the male falling while looking for a job does not directly relate to gastric ulcer development.
Choice D is less likely as divorce and back pain are not direct risk factors for gastric ulcers.
The muscles of the esophagus squeeze the food downward using the process of:
- A. gravity
- B. peristalsis
- C. rugae
- D. chyme
Correct Answer: B
Rationale: The correct answer is B: peristalsis. Peristalsis is the coordinated, rhythmic muscle contractions that propel food through the esophagus and digestive tract. This process helps move food downward towards the stomach. Gravity (choice A) is not the primary mechanism for moving food through the esophagus. Rugae (choice C) refers to folds in the stomach lining, not muscle action in the esophagus. Chyme (choice D) is the partially digested food mixed with stomach acids and enzymes, not a process of moving food down the esophagus. Therefore, peristalsis is the correct answer as it accurately describes the muscle action involved in pushing food downward through the esophagus.
Priority Decision: The nurse admitting a patient for bariatric surgery obtains the following information from the patient. Which finding should be brought to the surgeon's attention before proceeding with further patient preparation?
- A. History of hypertension
- B. History of untreated depression
- C. History of multiple attempts at weight loss
- D. History of sleep apnea treated with continuous positive airway pressure (CPAP)
Correct Answer: B
Rationale: The correct answer is B: History of untreated depression. Before proceeding with further patient preparation for bariatric surgery, it is crucial to address untreated depression as it can significantly impact the patient's mental and emotional well-being post-operatively. Untreated depression can lead to poor compliance with post-operative instructions, medication management issues, and potentially increase the risk of complications. It is essential to involve the surgeon to assess the patient's psychological readiness for surgery and ensure appropriate support and resources are in place.
Incorrect choices:
A: History of hypertension - While hypertension should be managed pre-operatively, it is not a critical factor that would require immediate attention before further preparation.
C: History of multiple attempts at weight loss - This is a common issue in patients undergoing bariatric surgery and does not pose an immediate risk that needs urgent attention.
D: History of sleep apnea treated with CPAP - While sleep apnea is a relevant consideration for bariatric surgery, the fact that it is being treated with