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.
THHN THWN THW Acronym Meanings. THHN, THWN and THW are all types of single conductor electrical wire used in homes and buildings to deliver power. Years ago, each acronym was a completely different wire with different approvals. Each type was specific to an application and cost as such. One with a nylon coating, for instance, was more expensive than one without. However, nowadays, there is a universal THHN-2 wire that covers all approvals from all variations of THHN, THWN and THW.