What is the medical term for a persistent, abnormal distortion of taste?
- A. Anosmia
- B. Dysgeusia
- C. Xerostomia
- D. Hypogeusia
Correct Answer: B
Rationale: The correct answer is Dysgeusia, which is a persistent and abnormal distortion of the sense of taste. This condition can be triggered by various factors such as medications or certain diseases. Anosmia, choice A, refers to the loss of the sense of smell, not taste. Xerostomia, choice C, is the medical term for dry mouth, which is not specifically related to a distortion of taste. Hypogeusia, choice D, refers to a reduced ability to taste things, which is not the same as a distortion of the sense of taste.
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Which factor contributes to the development of bone diseases in patients with Chronic Kidney Disease (CKD) due to retention?
- A. Iron
- B. Sodium
- C. Potassium
- D. Phosphorus
Correct Answer: D
Rationale: The correct answer is phosphorus. Retention of phosphorus in patients with Chronic Kidney Disease (CKD) contributes to the development of bone disorders, including osteodystrophy, because it disrupts the balance of calcium and phosphorus in the body. This imbalance leads to a variety of bone diseases. The other options - iron, sodium, and potassium - while important in the overall metabolic function, are not directly linked to the development of bone diseases in CKD patients due to retention.
Is it correct that eliminating sucrose from the diet leads to a significant reduction in dental caries, and that the best advice is to consume sugar in moderation and limit the frequency of sugar exposure?
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct Answer: D
Rationale: The first statement is incorrect because dental caries are not solely caused by sucrose. They are the result of a complex interaction of multiple factors, including the type of bacteria in the mouth, the host's diet, oral hygiene, and salivary flow. The second statement is correct as consuming sugar in moderation and limiting the frequency of sugar exposure are indeed effective strategies to prevent dental caries. Therefore, the answer is option D: The first statement is false; the second is true.
Which factor has been shown to increase the risk of development of atherosclerosis?
- A. Menopause
- B. Age older than 35
- C. Increased levels of arachidonic acid
- D. Elevated HDL cholesterol
Correct Answer: A
Rationale: The correct answer is A: Menopause. Menopause is associated with an increased risk of atherosclerosis due to hormonal changes that affect lipid profiles and vascular health. Conversely, B: Age older than 35 is not necessarily a risk factor for atherosclerosis on its own, though atherosclerosis risk does generally increase with age. C: Increased levels of arachidonic acid is not specifically linked to atherosclerosis; it's a fatty acid that can be both beneficial and harmful to health depending on its metabolic pathway. D: Elevated HDL cholesterol is actually beneficial rather than harmful because HDL cholesterol is known as 'good' cholesterol that helps to reduce the risk of heart disease and atherosclerosis.
Which suggestion is most appropriate to increase calorie intake for a patient with stomach cancer, aiming to prevent weight loss and wasting?
- A. Replace whole fat milk with skim milk or water
- B. Avoid peanut butter and other nuts
- C. Choose high-fat meat instead of lean meat
- D. Limit alcohol intake to two drinks per day
Correct Answer: C
Rationale: The correct answer is C: Choose high-fat meat instead of lean meat. High-fat meats are more calorie-dense than lean meats, which makes them a good choice for increasing calorie intake. This is crucial for patients with stomach cancer who want to avoid weight loss and wasting. Choice A is incorrect because skim milk or water contains fewer calories than whole fat milk. Choice B is also incorrect because peanut butter and nuts are high in calories and therefore should not be avoided when trying to increase calorie intake. Finally, choice D is not a good suggestion to increase calorie intake as alcohol does not provide the necessary nutrients needed for a balanced diet. In fact, excessive alcohol can harm the liver and other organs, and it's not a reliable source of calories.
Why are blood glucose levels high in type 1 diabetes?
- A. The urinary excretion of glucose is impaired
- B. The lean body mass is metabolized to produce glucose via gluconeogenesis
- C. The absorption of glucose from the gastrointestinal tract is more efficient
- D. There is insufficient insulin to facilitate the transport of glucose into the cells
Correct Answer: D
Rationale: In type 1 diabetes, the body's immune system destroys the beta cells in the pancreas that produce insulin. This leads to an insufficient amount of insulin, which is required to facilitate the transport of glucose into the cells. Consequently, blood glucose levels remain high. The other options are incorrect. Option A is incorrect because urinary excretion of glucose does not directly contribute to blood glucose levels. Option B is incorrect because, while gluconeogenesis does produce glucose, it is not the cause of high glucose levels in type 1 diabetes. Option C is incorrect because absorption efficiency of glucose from the gastrointestinal tract does not affect the amount of insulin available to transport glucose into cells.