Tick the group of drugs for chronic hypotension treatment:

Correct Answer: B

Rationale: The correct answer is B: Vasoconstrictors. Vasoconstrictors are used to increase blood pressure in chronic hypotension by constricting blood vessels, thus raising blood pressure. Positive inotropic drugs (A) increase the strength of the heart's contractions, which is not the primary concern in hypotension. Plasmoexpanders (C) are used to increase blood volume, not necessarily blood pressure. Analeptics and tonics (D) are more commonly used for conditions like fatigue or depression, not specifically for chronic hypotension.

Correct Answer: A

Rationale: Rationale: 1. During acute inflammation, the initial response is vasodilation and increased capillary permeability. 2. This leads to increased blood flow, redness, heat, and swelling at the site of injury. 3. The purpose is to deliver immune cells and proteins to the affected area to fight off pathogens. 4. Infiltration of leukocytes and phagocytic cells occurs after vasodilation in the exudation phase. 5. Tissue degeneration and fibrosis occur in the later stages of chronic inflammation, not in the acute phase. 6. Choice A is correct as it specifically describes the characteristics of the acute, transient phase of inflammation. Summary: - Choice A is correct as it accurately describes the characteristics of acute inflammation. - Choices B, C, and D are incorrect as they describe phases or processes that occur in chronic inflammation or are not specific to the acute phase.

Correct Answer: B

Rationale: The correct answer is B because H2 histamine receptor subtype is mainly distributed in gastric mucosa, cardiac muscle, mast cells, and brain. This receptor subtype plays a crucial role in gastric acid secretion and cardiovascular functions. Choice A is incorrect because smooth muscle and endothelium are primarily associated with H1 receptors, not H2 receptors. Choice C is incorrect because presynaptic H3 receptors are found in the brain and other neurons, not H2 receptors. Choice D is incorrect because H2 receptors are not distributed in smooth muscle, endothelium, or presynaptic regions as mentioned in choices A and C.

Correct Answer: B

Rationale: The correct answer is B: Tocopherol. Tocopherol is a fat-soluble vitamin, specifically referring to Vitamin E. Fat-soluble vitamins dissolve in fat and are stored in the body's fatty tissues, allowing for longer-term storage compared to water-soluble vitamins. Ascorbic acid (A) is Vitamin C, which is water-soluble. Thiamine (C) and Riboflavin (D) are both water-soluble B vitamins. Therefore, the correct choice is B because it is the only fat-soluble vitamin among the options provided.

Correct Answer: C

Rationale: The correct answer is C: L-asparaginase. This enzyme is used in cancer therapy to treat certain types of leukemia by depleting asparagine, an essential amino acid for cancer cell growth. Pepsin (A) is a digestive enzyme, urokinase (B) is involved in fibrinolysis, and lysozyme (D) is an antimicrobial enzyme, none of which are used in cancer therapy.