Early sign of shock is:

Correct Answer: D

Rationale: Tachycardia is an early compensatory response in shock to maintain perfusion, whereas hypotension and altered consciousness occur in later stages.

Correct Answer: D

Rationale: Hydroxychloroquine is often used as a first-line treatment to control mild to moderate lupus symptoms.

Correct Answer: D

Rationale: Anaphylactic shock is a severe allergic reaction characterized by vasodilation, airway swelling, and circulatory collapse, requiring immediate epinephrine administration.

Correct Answer: D

Rationale: Deforestation leads to the loss of biodiversity as it destroys natural habitats for countless species, disrupting ecosystems.

Correct Answer: B

Rationale: Doxorubicin is a chemotherapeutic agent known for its dose-dependent cardiotoxicity, leading to dilated cardiomyopathy due to mitochondrial dysfunction and oxidative stress in cardiac myocytes.