If you check out my page on English doctors in Tenerife, you'll see that there are two medical centres operating in the Costa Adeje area.
Your best bet is to go for "Perfect Health" and try phoning Jane on (+34) 686 746970.
The centre is based, on Tuesdays and Fridays, at Bellissimas (behind Roy's Pizzas) in San Eugenio Alto. Apparently, Jane deals in nursing care, midwifery and therapy and may be able to help you regarding blood tests.
I'm not sure of the cost, but I know that Perfect Health will do home visits.
Jul 25, 2013 Rating
blood test for warfrin by: Akathy
Thank you for information. I was getting worried as to how I could do this. Sincerely, Kathy.