Chapter 4

The Venipuncture Process

Orders

someone must place an order for lab tests to confirm they’re medically necessary

Requisitions

document or form used to communicate the provider’s orders to lab performing tests

What are the types of consent?

verbal, written, implied, parental, HIV

What are commonly used items?

antiseptic (chlorhexidine), gauze, gloves, needle hubs, needles, tape, tourniqet, tubes

How long can a tourniquet be left on?

one minute to prevent hemoconcentrationH

Hemoconcentration

an increase in blood components due to fluid loss

What is the relationship between gauge and lumen?

the gauge is the diameter of the lumen, the interior space

What is the standard needle size? Why?

21-23G. larger ones can damage the vein and smaller ones can damage a sample.

What are aseptic techniques?

practices that help maintain a clean environment to prevent infection and contamination

How should the area be cleaned?

With a wipe in an up and down motion