Place the capillary dropper in contact with the blood without squeezing the bulb. Let the blood flow into the dropper until it reaches the indicated line. Massage your finger if more blood is needed to reach the line.
Place the capillary dropper in contact with the blood without squeezing the bulb. Let the blood flow into the dropper until it reaches the indicated line. Massage your finger if more blood is needed to reach the line.