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.
What's the difference between THHN Wire and MTW wire? These are both types of PVC electrical wire used to supply power from one spot to another. The difference between THHN and MTW is the nylon over the PVC insulation on the THHN wire. THHN stands for Thermoplastic High Heat-Resistant Nylon coated. This type of electrical wire can be used outdoors because it resists water, gases and solvents.