A Doctor Has Ordered 4 Units of Red Blood Cells

question 23

Multiple Choice

A doctor has ordered 4 units of red blood cells for a patient with anti-E in his serum. How many units would have to be screened to yield 4 E-negative units?

• A) 10
• B) 15
• C) 6
• D) 12

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Definitions:

Cerebral Cortex

The outer layer of the brain's cerebrum, involved in complex brain functions including thought, memory, and consciousness.

Master Area

A primary or controlling section within a larger domain, often referring to a specific field of study or expertise.

Central Processor

The primary component of a computer or information processing system responsible for interpreting and executing instructions.

Resting Potential

The state of a neuron when it is not active, characterized by a balance of ions producing a negative charge inside the cell.