A nursing student asks a nurse what the standard INR therapeutic range of Warfarnin is for patients that have mechanical heart valves. The nurse's most accurate response would be:

A nurse is educating her 66 year old patient about the type of diet she needs to maintain when taking the oral anticoagulant, Warfarin (Coumidin). Which of the following is the best response by the nurse pertaining to diet and wafarnin use?

The nurse is caring for a patient that is receiving a continuous infusion of Heparin through her IV. The nurse reviews the patient's lab results and sees that there is a 50% drop in the patient's platelet count. The nurse also receives report from the doctor that the patient has developed DVT. What is the most appropriate nursing intervention that needs to be done at this time?