Certain frequently performed lab tests can be obtained in our office with the convenience of a finger stick. For patients on chronic coumadin therapy, protimes can be measured with this test and results available while the patient waits (less than 5 minutes). This allows for coumadin to be adjusted during one visit rather than waiting for a follow-up phone call. We can also measure cholesterol and liver function tests in this way. These results are immediately available as well. The cholesterol testing must be performed in a fasting state (ie. nothing to eat for 12 hours before the test).