Scottish Daily Mail - - GOOD HEALTH -

Dr HE­LEN CowAN, a qual­i­fied nurse with a PhD in car­diac phar­ma­col­ogy, de­scribes some of the mis­takes she’s come across. This week: Giv­ing up war­farin to eat salad A PA­TIENT once told me she’d given up tak­ing war­farin — a blood thin­ner — be­cause she liked to eat salad and she’d read some­where that it could make the drug in­ef­fec­tive. A re­cent blood test re­sult had, in her words, ‘been all over the place’ and she as­sumed it was salad that was the rea­son. Some foods that are nat­u­rally high in vi­ta­min K, in­clud­ing ce­real grains and green leafy veg­eta­bles, can af­fect the ab­sorp­tion of war­farin if eaten in large amounts.

How­ever, war­farin doses are tai­lor-made to suit each pa­tient and should never be al­tered with­out con­sult­ing a doc­tor.

Miss­ing a dose can thicken the blood which could cause a stroke. In this patent’s case, it was not her salad but a steroid pre­scribed for a chest in­fec­tion that was af­fect­ing her blood re­sults (af­ter she’d also in­ter­fered with that dose).

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