Diabetic coma is treated by the administration of:

Correct Answer: C

Rationale: The correct answer is C: Crystalline insulin. Diabetic coma is a severe complication of diabetes characterized by extremely high blood sugar levels. Administration of crystalline insulin helps lower blood sugar rapidly. Lente insulin (A) is not fast-acting enough for diabetic coma treatment. Glucose (B) would further elevate blood sugar levels. Oral anti-diabetic drugs (D) are not suitable for immediate treatment of diabetic coma.

Correct Answer: D

Rationale: Rationale: Histamine H1 antagonists are commonly used to prevent or treat allergic reactions like rhinitis and urticaria due to their antihistaminic properties. They are also effective in managing symptoms of motion sickness and vestibular disturbances by inhibiting histamine release in the brain. Moreover, these antagonists are recommended for treating nausea and vomiting in pregnancy, commonly known as "morning sickness," as they help alleviate these symptoms by blocking histamine receptors. Therefore, the correct answer is D, as histamine H1 antagonists are indicated for all the mentioned conditions. Choices A, B, and C are incorrect as they individually do not encompass the full range of indications for histamine H1 antagonists.

Correct Answer: C

Rationale: The correct answer is C. Vitamin E is not specifically required for the synthesis of prothrombin and clotting factors. A: True. Vitamin E is a vital antioxidant protecting cell membranes from damage. B: True. Vitamin E is known for its antisterility and antiabortion properties. D: True. Vitamin E is essential for regulating oxidative processes. In summary, vitamin E does not play a direct role in the synthesis of clotting factors, making statement C incorrect.

Correct Answer: A

Rationale: The correct answer is A: TRUE. The Coronary Primary Prevention Trial (CPPT) indeed showed that treatment with a lipid-lowering drug reduced the risk of death due to coronary heart disease. This conclusion is based on the findings and results of the study, which have been scientifically validated. Choice B is incorrect because the CPPT did demonstrate the effectiveness of lipid-lowering drugs in reducing coronary heart disease mortality. Choice C, All, and Choice D, None, are also incorrect as they do not accurately reflect the specific outcome of the CPPT. Thus, the correct answer is A because it aligns with the established evidence and results of the study.

Correct Answer: D

Rationale: Rationale: D is the correct answer because the parathyroid hormone (PTH) actually increases calcium reabsorption and decreases phosphate excretion in the kidneys, not the other way around. PTH acts on the kidneys to enhance calcium reabsorption and decrease phosphate reabsorption, leading to increased serum calcium levels and decreased serum phosphate levels. Choices A, B, and C are correct statements about PTH, highlighting its role in regulating calcium and phosphate levels in the body.