A patient has been on warfarin therapy for six months (warfa…

A patient has been on warfarin therapy for six months (warfarin is a blood-thinning medication that helps to prevent blood clots).  In the past two months, his health has declined and his serum albumin is now 2.6 (normal range 3.5-5.0).  The dosage of warfarin has remained the same.  Which of the following statements is true?