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.
Difference Between TFFN and THHN Electrical Wire. Electrical wires are needed for the electricity to pass through and power up your home and office equipment. Electrical wires are comprised of conductive materials such as copper and aluminum. Copper conductors are most commonly used in electrical devices because they are very practical to use.