- Make sure the limb is below the level of the heart
- Milking a vein from proximal to distal can make it appear more prominent
- Ask the patient to repeatedly make a fist with their hand
- Apply a gauze soaked in lukewarm water for two to three minutes
- Gently wipe the skin with an alcohol swab.
Ultrasound and handheld infrared devices can also be very useful to locate veins, where available.