Tick the drug for parenteral iron therapy:

Correct Answer: B

Rationale: The correct answer is B: Fercoven. Parenteral iron therapy involves administering iron intravenously or intramuscularly to treat iron deficiency anemia when oral iron is not effective. Fercoven is a formulation specifically designed for parenteral administration, making it the appropriate choice. Ferrous sulfate, ferrous lactate, and ferrous fumarate are oral iron supplements and are not suitable for parenteral administration. Ferrous sulfate is commonly used orally but can cause gastrointestinal side effects, while ferrous lactate and ferrous fumarate are also oral iron salts. Therefore, Fercoven is the correct choice for parenteral iron therapy.

Correct Answer: B

Rationale: Step-by-step rationale for why choice B (Validol) is the correct answer: 1. Validol contains menthol, which acts as a reflex coronary dilator. 2. Menthol stimulates cold receptors in the oral cavity, leading to vasodilation. 3. Vasodilation in the coronary arteries increases blood flow to the heart. 4. This helps relieve angina symptoms by improving blood supply to the heart muscle. Summary: - A: Dipyridamole is a vasodilator but acts through adenosine receptor stimulation, not reflex coronary dilation. - C: Atenolol is a beta-blocker that reduces heart rate and contractility but does not cause reflex coronary dilation. - D: Alinidine is a central alpha-2 adrenoceptor agonist, which reduces sympathetic outflow but does not directly cause reflex coronary dilation.

Correct Answer: B

Rationale: The correct answer is B: Aspirin. Aspirin is an antiplatelet agent that works by inhibiting the enzyme cyclooxygenase, thereby reducing the formation of thromboxane A2 which is a potent vasoconstrictor. This action leads to improved blood flow by preventing platelet aggregation and reducing the risk of blood clots. Heparin (A) is an anticoagulant that works by inhibiting clotting factors in the blood, not specifically related to blood flow. Pyracetam (C) and Tanakan (D) are not known to influence blood flow or act as antiplatelet agents.

Correct Answer: B

Rationale: The correct answer is B because pancreatic β-cells secrete insulin, C-peptide, proinsulin, and islet amyloid polypeptide (IAPP). Insulin regulates blood sugar levels, C-peptide is a byproduct of insulin synthesis, proinsulin is the precursor of insulin, and IAPP helps in glucose metabolism. Choice A is incorrect as glucagon is secreted by α-cells, not β-cells, and proglucagon is not a primary secretory product of β-cells. Choice C is incorrect as somatostatin is mainly secreted by δ-cells in the pancreas, not β-cells. Choice D is incorrect as pancreatic polypeptide (PP) is secreted by PP-cells, a separate cell type in the pancreas, not by β-cells.

Correct Answer: C

Rationale: The correct answer is C because the chronic, proliferative phase of inflammation is characterized by tissue degeneration and fibrosis occurrence. During this phase, there is an attempt by the body to repair the damaged tissue by forming new connective tissue and blood vessels. A is incorrect because local vasodilatation and increased capillary permeability are characteristics of the acute phase of inflammation, not the chronic, proliferative phase. B is incorrect because the infiltration of leucocytes and phagocytic cells is typically seen in the acute phase of inflammation, not the chronic, proliferative phase. Therefore, the correct answer is C as it accurately reflects the characteristics of the chronic, proliferative phase of inflammation.