What Causes Elevated Serum Levels of AST and ALT During

question 97

Multiple Choice

What causes elevated serum levels of AST and ALT during the preicteric stage of hepatitis?

• A)systemic effects of viral infection
• B)obstruction of bile ducts and malabsorption
• C)necrosis of liver cells
• D)ammonia toxicity

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Definitions:

Economies of Scale

The cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale as fixed costs are spread out over more units.

Profitable

A financial status where the income or revenue generated exceeds the costs or expenses, resulting in a financial gain.

Natural Monopoly

A market where a single supplier can produce output at a lower cost than multiple competitors, often due to economies of scale.

Increasing Returns

A situation where the input in a production process is increased and the output increases at a proportionally higher rate.