Which of the following statements is true

Correct Answer: A

Rationale: The correct answer is A because hypothyroidism is indeed a syndrome caused by a deficiency of thyroid hormones, leading to a slowdown of body functions. This is supported by clinical manifestations such as fatigue, weight gain, and cold intolerance. Choice B is incorrect as it describes hyperthyroidism, not hypothyroidism. Choice C refers to severe hypothyroidism in adults and is not a statement. Choice D is a form of severe congenital hypothyroidism, not a statement about hypothyroidism in general. Therefore, choice A is the only accurate statement among the options.

Correct Answer: C

Rationale: The correct answer is C: Zafirlukast (Accolate). Zafirlukast is a leukotriene receptor antagonist that specifically blocks the action of leukotriene D4 (LTD4) at its receptor. This drug helps in reducing inflammation in conditions like asthma by blocking the effects of LTD4. Ibuprofen (A) and Diclofenac (D) are nonsteroidal anti-inflammatory drugs (NSAIDs) that work by inhibiting cyclooxygenase enzymes. Zileuton (B) is a 5-lipoxygenase inhibitor that blocks the formation of leukotrienes but does not specifically target the LTD4 receptor. Therefore, the correct choice is C as it directly blocks the LTD4 receptor, unlike the other options.

Correct Answer: D

Rationale: Rationale: Interferon alpha is indicated for treating viral infections and certain cancers, making it suitable for Hepatitis C, Kaposi's sarcoma, and Condyloma acuminatum. Therefore, the correct answer is D. Choice A is correct as interferon alpha is used in Hepatitis C treatment. Choice B is also correct as it is used in treating Kaposi's sarcoma. Choice C is correct as it is used in treating Condyloma acuminatum. Therefore, choosing all of the above (D) is the correct answer as interferon alpha is indicated for all these conditions.

Correct Answer: B

Rationale: Step-by-step rationale for why choice B (Vitamin PP) is correct: 1. Vitamin PP is not a vitamin-like compound. 2. Vitamin PP refers to niacin (B3), which is essential and classified as a vitamin. 3. Choline, Vitamin U, and Orotate acid are vitamin-like compounds. 4. Choline is essential for liver function. 5. Vitamin U aids in digestive health. 6. Orotate acid is involved in nucleic acid metabolism. Summary of why other choices are incorrect: - Choice A (Choline): Essential for liver function. - Choice C (Vitamin U): Aids in digestive health. - Choice D (Orotate acid): Involved in nucleic acid metabolism.

Correct Answer: A

Rationale: Correct Answer: A (TRUE) Rationale: 1. Drugs and diet independently lower blood cholesterol levels. 2. When used together, their effects are additive, leading to a greater reduction. 3. This synergy implies that the statement is true. 4. Other options (B, C, D) are incorrect as they do not acknowledge the additive nature of combining drugs and diet interventions.