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Question

A patient was wheeled into the emergency department of a hospital.

He was complaining of an intense squeezing sensation in his chest. He had broken into a cold sweat and was vomiting intermittently. His blood pressure had slipped to 90/50 (systolic/diastolic).

The trauma care doctors must have administered___________immediately to relieve him of his anginal pain.

A
protease
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B
thrombokinase
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C
hydrolase
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D
streptokinase
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Solution

The correct option is D streptokinase

Clots present in the bloodstream can fatally affect the heart and the brain. When the clot blocks the blood flow to the heart, it leads to angina (chest pain) due to the lack of oxygenated blood supply to the cardiac tissues. This leads to heart attack and in severe cases can cause death.

The trauma care doctors must have administered streptokinase immediately to relieve him of his anginal pain.

Streptokinase is an enzyme obtained from the bacterium Streptococcus. It is used as a clot buster drug that helps to remove clots in the blood vessels.


Proteases are enzymes that break the peptide bonds of proteins.

Thrombokinase is an enzyme essential for blood clotting. It converts prothrombin into thrombin in the presence of calcium ions. The thrombin in turn converts the inactive fibrinogens in plasma into fibrins which form the clot.

Hydrolases are enzymes that catalyse the cleavage of a covalent bond using water.


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