University revision · Laboratory Management

Receiving and Verifying Laboratory Commodities

Question 1 of 6 Course: Biomedical Science(Degree)

Which of the following is the most appropriate reason for formally complaining to a supplier about receiving near-expiry ALT/AST controls?

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This statement is true. The APTT test is another key coagulation test. It works by activating the 'intrinsic' pathway (using a surface activator like kaolin or silica) and adding phospholipids. It measures the time to clot formation, which depends on the function of factors in the intrinsic pathway (XII, XI, IX, VIII) and the common pathway (X, V, II, I). It is the primary test used to monitor heparin therapy and to screen for conditions like hemophilia A (Factor VIII deficiency) or hemophilia B (Factor IX deficiency).

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