1 Wipe away the first drop of blood with a piece of clean, dry cotton gauze. 2  Since newborns do not often bleed immediately, use gentle pressure to produce a rounded drop of blood. 3  Do not use excessive pressure because the blood may become diluted with tissue fluid. 4  Fill the required microtainer(s) as needed.
You'll likely see labels like THHN or THWN written on the wire. For example, THHN wire stands for thermoplastic high heat-resistant nylon coated wire. THWN stands for thermoplastic heat- and moisture-resistant nylon coated wire. As you can see, these wires are built to take on many different conditions.
THWN wire refers to a specific type of insulation material, temperature rating, and condition of use for electrical wire and cable. It is the most common type of electrical wire due to its use as a single conductor wire while also being used in most electrical cables.The conductors are used in commercial and industrial applications specified in the National Electrical Code.HWN wire is often used in alternating current electrical distribution systems of many different types of buildings in North America. This is usually at voltage levels of 110-600 volts. Aluminum and copper conductors, sold as stranded or solid, use THWN insulation.