Nokea
What condition has been shown to be associated with esophageal dysphagia?
- A. myasthenia gravis
- B. achalasia
- C. Alzheimer's disease
- D. cerebral palsy
Correct Answer: B
Rationale: Achalasia is the correct answer. It is a condition characterized by the esophagus having difficulty moving food toward the stomach, resulting in dysphagia (difficulty swallowing). Myasthenia gravis (Choice A) is a neuromuscular disorder that affects skeletal muscles, not the esophagus. Alzheimer's disease (Choice C) primarily affects cognitive function, not the esophagus. Cerebral palsy (Choice D) is a neurological disorder affecting body movement and muscle coordination, unrelated to esophageal dysphagia.
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Which vitamin is essential for proper blood clotting?
- A. Vitamin A
- B. Vitamin E
- C. Vitamin K
- D. Vitamin C
Correct Answer: C
Rationale: Vitamin K is vital for the synthesis of clotting factors, which are necessary for proper blood clotting. Vitamin A (Choice A) is important for vision and skin health, not blood clotting. Vitamin E (Choice B) is an antioxidant that helps protect cells from damage but is not directly involved in blood clotting. Vitamin C (Choice D) is essential for collagen synthesis and a healthy immune system, but it does not play a direct role in blood clotting.
Each statement accurately describes the physical effects of food on periodontal health, except one. Which is the exception?
- A. Supragingival plaque biofilm adhesion is influenced by frequent consumption of monosaccharides
- B. Supragingival plaque biofilm adhesion is influenced by frequent consumption of disaccharides
- C. Poor nutrition has an adverse effect on the periodontium
- D. Chewing soft, spongy foods stimulates salivary flow
Correct Answer: D
Rationale: The correct answer is D. Chewing soft, spongy foods does not stimulate salivary flow; rather, firm, fibrous foods like fruits and vegetables do. Soft foods can stick to teeth, promoting plaque buildup. Choices A, B, and C are accurate: Supragingival plaque biofilm adhesion is influenced by both monosaccharides and disaccharides, while poor nutrition can indeed have adverse effects on the periodontium.
For patients with anemia, which vitamin is crucial for the absorption of iron?
- A. Vitamin A
- B. Vitamin C
- C. Vitamin D
- D. Vitamin E
Correct Answer: B
Rationale: The correct answer is Vitamin C. Vitamin C enhances the absorption of non-heme iron, which is crucial for patients with anemia. Vitamin A (Choice A) is not directly involved in iron absorption. Vitamin D (Choice C) helps with calcium absorption, not iron. Vitamin E (Choice D) does not have a significant role in iron absorption.
Where is Vitamin K synthesized?
- A. by bacteria in the GI tract
- B. by the body by sunlight
- C. deficiency is called beriberi
- D. found in vegetable oils
Correct Answer: A
Rationale: Vitamin K is synthesized by bacteria in the gastrointestinal tract. Choice B is incorrect as the synthesis of Vitamin D, not K, can be induced by sunlight exposure. Choice C is incorrect as beriberi is a condition caused by thiamine (Vitamin B1) deficiency, not Vitamin K. Choice D is incorrect as Vitamin E is commonly found in vegetable oils, not Vitamin K.
Age group categories within older adults are classified as 'young old,' 'old,' and 'oldest old,' the latter of which comprises adults aged _____.
- A. 70-80 years
- B. 75-84 years
- C. 80-90 years
- D. 85 years or older
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.