Heparin Sodium Is an Anticoagulant

question 20

Multiple Choice

Heparin sodium is an anticoagulant.The basic mechanism of heparin's action is best described as:

• A) it blocks the conversion of prothrombin to thrombin and fibrinogen to fibrin.
• B) it acts as an enzyme by lysing the fibrin-thrombin matrix.
• C) it extends the activated partial thromboplastin time (APTT).
• D) it dissolves and liquefies existing blood clots and thromboemboli.

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Definitions:

Income Tax Expense

The amount of money a company owes in taxes based on its taxable income for a given fiscal period.

Cost Method

An accounting method used for investments, where the investment is recorded at cost and earnings from the investment are recognized only when dividends are received.

Retained Earnings

The portion of a company's profit that is held or retained and not paid out as dividends to shareholders.

Common Shares

A type of equity investment representing ownership in a corporation, with rights to dividends and voting at shareholder meetings.