A delayed, subacute phase, of inflammation is characterized by:

Correct Answer: B

Rationale: The correct answer is B: Infiltration of leucocytes and phagocytic cells (phase of exudation). During the delayed, subacute phase of inflammation, infiltrating leukocytes, such as neutrophils and macrophages, play a crucial role in removing debris and pathogens. This phase is characterized by the migration of these cells to the site of injury, where they engulf and digest foreign substances. This process helps to clear the area of infection and promote tissue repair. Other choices are incorrect: A: Local vasodilatation and increased capillary permeability (phase of damage) - This describes the initial phase of inflammation, not the delayed subacute phase. C: Tissue degeneration and fibrosis occurrence (phase of proliferation) - This describes the later stages of inflammation involving tissue repair and remodeling, not the delayed subacute phase. D: All of the above - This is incorrect as choices A and C do not accurately describe the delayed, subacute

Correct Answer: D

Rationale: The correct answer is D: Vitamin B1. This is a water-soluble vitamin, also known as thiamine. Water-soluble vitamins dissolve in water and are not stored in the body, so they need to be consumed regularly. Vitamin A (choice A), Vitamin E (choice B), and Vitamin D (choice C) are fat-soluble vitamins, meaning they are stored in the body's fat tissues and liver, not excreted in urine like water-soluble vitamins. Therefore, they are not water-soluble vitamins. Vitamin B1 (choice D) is crucial for energy metabolism and nerve function, making it a water-soluble vitamin that needs to be replenished regularly through diet.

Correct Answer: D

Rationale: The correct answer is D. This is because all three statements A, B, and C are true regarding nutritional supplements. A: Nutritional supplements are intended to supplement the diet and contain dietary ingredients like vitamins, minerals, herbs, amino acids, etc. B: Nutritional supplements are regulated as foods by the FDA, not drugs. C: Nutritional supplements do not require pre-approval for safety and efficacy, unlike drugs. Therefore, all of the statements are true, making option D the correct answer.

Correct Answer: D

Rationale: The correct answer is D: Probucol (Lorelco). Probucol decreases blood levels of HDL by inhibiting the enzyme that helps in the production of HDL. Lovastatin (A) works by lowering LDL levels, Nicotinic acid (B) increases HDL levels, and Gemfibrozil (C) works mainly on triglycerides and raises HDL levels. Probucol (D) is specifically known for lowering HDL levels.

Correct Answer: C

Rationale: The correct answer is C: Hypophosphatemia. Etidronate is a bisphosphonate used to treat Paget's disease and osteoporosis by inhibiting bone resorption. Hypophosphatemia is a condition characterized by low phosphate levels in the blood, and etidronate is not indicated for this. Hypercalcemia is not an indication for etidronate as it can further decrease calcium levels.