When Collecting Blood for Laboratory Tests from a Central Venous

question 23

Multiple Choice

When collecting blood for laboratory tests from a central venous catheter (CVC) that is infusing total parenteral nutrition (TPN) or heparin,it must be flushed with:

• A) 5 mL of saline.
• B) 10 mL of saline.
• C) 15 mL of saline.
• D) 20 mL of saline.

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Definitions:

Exchange Rate

The value of one currency for the purpose of conversion to another, used in international trade and investment.

Natural Rate

Refers to the long-term unemployment rate or interest rate that is observed once the effect of short-term cyclical factors has been removed.

Aggregate Demand

The entirety of demand for goods and services in an economic setting, pegged at an established price level and during a defined time.

Unemployment Rate

The percentage of the workforce currently without jobs and actively searching for employment.