The manifestations of glycosides intoxication are:

Correct Answer: D

Rationale: The correct answer is D because glycosides intoxication can lead to a variety of manifestations affecting different systems. Visual changes may occur due to the effects on the central nervous system. Ventricular tachyarrhythmias can result from the cardiac toxicity of glycosides. Gastrointestinal disturbances are also common, such as nausea, vomiting, and diarrhea. Therefore, all the above choices are correct manifestations of glycosides intoxication. Options A, B, and C are incorrect individually as they only represent some of the possible manifestations, whereas option D encompasses all the correct manifestations.

Correct Answer: C

Rationale: The correct answer is C: Dobutamine. Dobutamine is a positive inotropic drug that enhances cardiac contractility without affecting the heart rate. It is a non-glycoside structure, making it distinct from options A (Digitoxin) and B (Digoxin), which are glycoside-based cardiac glycosides. Strophanthin (option D) is also a cardiac glycoside. Dobutamine works by increasing the intracellular calcium concentration, leading to improved myocardial performance. It is commonly used in the treatment of heart failure and cardiogenic shock. Thus, the correct choice is C due to its non-glycoside structure and positive inotropic effects.

Correct Answer: B

Rationale: The correct answer is B: Angina pectoris. Thyroid hormones can increase cardiac output and oxygen demand, potentially leading to angina. A: Increases in basal metabolic rate is a common therapeutic effect of thyroid hormones. C: Tremors may occur as a sign of hyperthyroidism but not a direct side effect of thyroid hormone therapy. D: Exopthalmos is a clinical sign of Graves' disease, not a direct side effect of thyroid hormone therapy.

Correct Answer: A

Rationale: The correct answer is A: TRUE. Mifepristone is a progesterone receptor antagonist that can be used for both contraception and abortion. As a contraceptive, it prevents implantation by altering the endometrium. As an abortifacient, it induces uterine contractions and softens the cervix, leading to expulsion of the embryo. Incorrect choices: B: FALSE - Mifepristone is indeed used for contraception and abortion, so this statement is inaccurate. C: None - This choice does not provide any information or contribute to the discussion, making it irrelevant. D: All of the above - This is incorrect as not all choices are true. Mifepristone being used for contraception and abortion does not mean that all choices are correct.

Correct Answer: A

Rationale: The correct answer is A because an immediate allergy reaction, also known as a type I allergic reaction, typically occurs within minutes to about an hour after exposure to an antigen. This rapid onset is characteristic of type I hypersensitivity reactions mediated by IgE antibodies. It involves the release of histamine and other inflammatory mediators from mast cells and basophils, leading to symptoms such as hives, itching, swelling, and in severe cases, anaphylaxis. Choice B is incorrect because it describes a delayed allergic reaction, which usually takes hours to days to develop. Choice C is incorrect as it describes type II hypersensitivity reactions involving IgM or IgG antibodies, not type I reactions. Choice D is incorrect as it describes type III hypersensitivity reactions involving antigen-antibody complexes, not type I reactions.