On an ECG, what does a variation of 0.1 seconds between the longest and shortest RR intervals indicate?

A patient has an elevated thrombin time and normal reptilase time. Which of the following situations is most likely?

a. Heparin therapy b. Low fibrinogen c. Elevated fibrin split products d. Dysfibrinogenemia

A pancreatic hormone that stimulates glucose metabolism is known as:

A. heparin B. warfarin C. insulin D. bilirubin