The Surgeon Asks for a Lung Retractor

question 28

Multiple Choice

The surgeon asks for a lung retractor. You would hand him a(n) :

• A) Allison
• B) Davidson
• C) Duval
• D) DeBakey

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Definitions:

Direct Current

A type of electrical current where the flow of electric charge is in one direction, commonly used in low voltage applications.

NOR Function

A logical operation that outputs true only if all inputs are false, used in digital electronics and computer programming.

NAND Function

A logical operation that produces an output that is false only if all its inputs are true, represented as NOT (A AND B).

AND Function

A logical operation that returns true if all of its operands are true, and false otherwise.