A Proper Blood Bank Specimen Is Good for How Many

question 25

Multiple Choice

A proper blood bank specimen is good for how many days after it is drawn from a patient that has had a prior transfusion within 90 days?

• A) 24 hours
• B) 3 days
• C) 7 days
• D) 14 days

---

Definitions:

Prevail

To be widespread or dominant, or to win against opposing forces.

Concentration Ratio

A measure used in economics to assess the extent of market control held by the largest firms within an industry.

Profit-maximizing Output

The level of production at which a firm achieves the highest possible profit, where marginal cost equals marginal revenue.

Total Cost

The sum of all costs required to produce a certain amount of a good or service, including fixed and variable costs.