Condition: Heart disease, stroke, atherosclerosis

Purpose: Measuring the concentration of blood thinner in the body

Format: SA; portable, battery-operated device.

Availability: By prescription

Comments: Relatively new; safety and efficacy are still being evaluated. Requires considerable patient training and compliance to be useful. Cost covered by some insurers.

KEY:
SA=stand-alone test, results available to consumer in the home
OTC=over-the-counter, no prescription needed.
N/A= not applicable