Final answer:
The question pertains to the medical field, specifically topics related to the effects of arsenic and cyanide poisoning, the use of thrombolytic agents for stroke treatment, blood typing for transfusions, and clinical test protocols.
Step-by-step explanation:
The provided information concerns various medical topics including the toxic effects of arsenic and cyanide, the therapeutic uses of thrombolytic agents such as tissue plasminogen activator, the significance of ABO and Rh blood typing in transfusions, and the protocols for certain clinical tests. Cyanide's lethal nature is due to its inhibition of cellular oxygen use, leading to metabolic acidosis. Thrombolytic agents can significantly improve prognoses in patients with thrombotic strokes if administered promptly. Additionally, blood typing is crucial for safe transfusions, and the Rh factor and ABO system must be considered to prevent incompatible blood reactions.
Arsine can cause renal failure due to intravascular hemolysis, and cyanide poisoning can be treated with antidotes such as sodium nitrite or hydroxocobalamin that help convert cyanide to less toxic thiocyanates. In the realm of therapeutic drug testing, procedures such as SPE cation-exchange and the use of certain anticancer drugs like cisplatin and antibiotics like doxorubicin are noted for their clinical relevance.