<s>[INST] my wife has undergone Mitral valve (Mechanical valve) and Triscupid valve repair in Oct 2010. She is taking Acitrom 2 mg daily. last month the blood thickness was 1.1, 1.3, 4.1 & 1.4 four weeks time. What food she can take? and y the blood thickness is varying drastically? [/INST] HIThank for asking to HCMI really appreciate your concern and I would like to say that if your wife had a heart valve replacement surgery and mechanical valve is there then her INR should be maintain and for that she need to get done this test from time to time and medicine need to be taken accordingly least concern with the diet, hope this information helps you, have a nice day. </s>