I want a blood vial to wear around my neck. Do i need to add anything to the blood so it doesn't coagulate? ?
Basically I am attempting to create a vial of blood to wear as a necklace.
I have found these http://www.perfectmemorials.com/glass-cylinder-silver-chromate-cremation-jewelry-p-1363.html
Looking to find out if there is anything i must add so that the blood does not dry out and maintains color.
THANK YOU!
Buy a Lavender top blood tube from a medical supplies store it contains EDTA as an anticoagulant. The blood tends to go dark if stored for long periods but it wont clump.