Which of the following organ hormones is a target for growth hormone (somatotropine GH)?

Correct Answer: B

Rationale: The correct answer is B: Insulin-like growth factors (IGF somatomedins). Growth hormone stimulates the liver to produce IGF, which is the main mediator of GH effects on growth. IGF acts on various tissues to promote growth and development. Glucocorticoids (A) are not direct targets of GH. Triiodothyronine (C) and testosterone (D) have roles in growth but are not primary targets of GH action.

Correct Answer: A

Rationale: The correct answer is A: Piroxicam. Piroxicam is an oxicam derivative because it belongs to the oxicam class of NSAIDs. It is characterized by its oxicam structure containing a 1,2-benzothiazine ring. The other options, Indomethacin, Meclofenamic acid, and Diclofenac, do not have the oxicam structure. Indomethacin is an indole derivative, Meclofenamic acid is a fenamic acid derivative, and Diclofenac is an acetic acid derivative. Therefore, Piroxicam is the correct choice based on its specific chemical structure that classifies it as an oxicam derivative.

Correct Answer: D

Rationale: The correct answer is D: Prophylaxis of certain infections. IV IgG preparations are commonly used for prophylaxis against infections in patients with primary immunodeficiencies or those undergoing immunosuppressive therapy. This helps provide temporary immunity to specific pathogens. A: Kaposi's sarcoma - IV IgG preparations are not indicated for the treatment of Kaposi's sarcoma. B: Acute rejection of organ transplant - IV IgG preparations are not used to treat organ rejection. C: Condyloma acuminatum - IV IgG preparations are not indicated for the treatment of condyloma acuminatum. In summary, the correct indication for IV IgG preparation administration is for prophylaxis of certain infections to boost immunity in immunocompromised patients, while the other choices are unrelated to its primary use.

Correct Answer: A

Rationale: The correct answer is A: Vitamin E. Vitamin E is known as the antisterility factor because it plays a crucial role in fertility and reproduction. It helps protect reproductive organs and improve fertility in both men and women. Vitamin B6 (choice B) is important for metabolism but not specifically related to fertility. Vitamin B1 (choice C) is essential for energy production but not known as an antisterility factor. Vitamin K (choice D) is important for blood clotting and bone health, not fertility. Thus, the correct answer is Vitamin E due to its specific role in promoting fertility and reproductive health.

Correct Answer: A

Rationale: Step 1: Cholesterol synthesis inhibitors target a specific enzyme, reducing side effects. Step 2: They have a lower incidence of adverse effects compared to other lipid-lowering drugs. Step 3: Therefore, the statement that they are better tolerated is true. Summary: Choice A is correct because of the targeted mechanism and lower side effect profile compared to other lipid-lowering agents. Choices B, C, and D are incorrect as they do not align with the rationale provided.