EVERYDAY SCIENCE

Detailed explanation-1: -Answer: Option B Solution: In the case of a heart attack, the hormone that injected as an emergency measure is Adrenaline. An adrenaline shot can increase the chance that the heart will regain a normal rhythm or restart your heart after a cardiac arrest by directing the flow of blood to the heart.

Detailed explanation-2: -Adrenaline and vasopressin for cardiac arrest.

Detailed explanation-3: -The earlier a thrombolytic drug is given after a heart attack, the less the heart is damaged and the greater the chance of survival. Other blood-thinning medications. A medicine called heparin may be given by IV or injection. Heparin makes the blood less sticky and less likely to form clots.

Detailed explanation-4: -Heparin commonly is given intravenously, usually with aspirin, antiplatelet agents, or fibrinolytic (clot-dissolving) medications for treating heart attacks. Intravenous heparin is given (usually with aspirin or an antiplatelet agent) to patients with heart attacks who are undergoing PTCA with or without stenting.

Detailed explanation-5: -Medicines used to break down blood clots, known as thrombolytics or fibrinolytics, are usually given by injection. Thrombolytics, or fibrinolytics, target and destroy a substance called fibrin. Fibrin is a tough protein that makes up blood clots by acting like a sort of fibre mesh that hardens around the blood.