Pick out the drug which increases cardiac output:

Correct Answer: A

Rationale: The correct answer is A: Noradrenalin. Noradrenalin is a sympathomimetic drug that acts on alpha and beta adrenergic receptors, leading to increased cardiac output by increasing heart rate and contractility. Methyldopa (B) and Phenylephrine (C) are vasoconstrictors that can increase blood pressure but not cardiac output. Angiotensinamide (D) is not a drug commonly used to increase cardiac output.

Correct Answer: D

Rationale: Progesterone is a hormone essential for pregnancy and menstrual cycle regulation. It is primarily secreted by the corpus luteum after ovulation. Ovarian follicles also produce progesterone during the menstrual cycle. Additionally, granulosa and theca cells in the ovaries contribute to progesterone production. Therefore, the correct answer is D, "All of the above," as all three options play a role in progesterone secretion. Choices A, B, and C individually are incorrect as they only represent specific sources of progesterone production.

Correct Answer: A

Rationale: Step 1: Thromboxane A2 (TXA2) is a potent vasoconstrictor and platelet aggregator. Step 2: Sulotroban is a specific TXA2 receptor antagonist, blocking its effects. Step 3: Zileuton inhibits 5-lipoxygenase, not directly related to TXA2 receptors. Step 4: Zafirleukast is a leukotriene receptor antagonist, not targeting TXA2 receptors. Step 5: Diclofenac is a non-selective NSAID, not a TXA2 receptor antagonist. Summary: Sulotroban is the correct choice as it directly blocks TXA2 receptors, while the other options target different pathways.

Correct Answer: C

Rationale: Interferon alpha is indicated in Kaposi's sarcoma due to its antiviral and anti-tumor properties. It helps in controlling the progression of the disease caused by human herpesvirus 8. Other options (A) Rh sensitization is managed by Rh immunoglobulin, (B) Rheumatoid arthritis is treated with disease-modifying anti-rheumatic drugs, and (D) Chronic granulomatous disease is managed with antibiotics and interferon-gamma.

Correct Answer: B

Rationale: Step 1: Taurine is a vitamin-like compound as it is an amino acid that has functions similar to vitamins in the body. Step 2: Ascorbic acid (Vitamin C) is a vitamin, not a vitamin-like compound. Step 3: Thiamine (Vitamin B1) and Riboflavin (Vitamin B2) are both vitamins, not vitamin-like compounds. Summary: Taurine is the correct answer as it is an amino acid with functions similar to vitamins, while the other choices are known vitamins.