Drug Cards: Warfarin (Coumadin®)

Front 1

warfarin
CLASSIFICATION

Back 1

Anticoagulant

Front 2

warfarin
ACTION

Back 2

Interferes with clotting cascade

Front 3

warfarin
USES (6)

Back 3

~Deep vein thrombosis (DVT)
~prevention/treatment of venous thrombosis
~pulmonary embolism
~atrial fibrillation complications
~cardiac valve replacement complications
~after MI

Front 4

warfarin
TRADE NAME

Back 4

Coumadin®

Front 5

warfarin
ADVERSE EFFECTS (4)

Back 5

BLEEDING (major adverse effect), diarrhea, rash, fever

Front 6

warfarin
CONTRAINDICATIONS -3

Back 6

allergy, blood disorders, surgery

Front 7

warfarin
PRECAUTIONS

Back 7

alcoholism, geriatric, CHF, trauma, risk of infection or inflammation

Front 8

warfarin
DRUG INTERACTION (7)
drugs that potentiate action

Back 8

Tylenol, antibiotics, H2 histamine antagonists, loop diuretics, NSAIDs, sufonamides, vitamin E

Front 9

warfarin
DRUG INTERACTIONS (7)
drugs that decrease action

Back 9

Alcohol, barbiturates, estrogens/oral contraceptives, spironolactone, thiazide diuretics, thyroid drugs, vitamin K

Front 10

warfarin
INTERACTIONS (6)
food and dietary supplements
INCREASED EFFECTS & BLEEDING RISK

Back 10

cayenne, chondroitin, feverfew, garlic, ginger, Ginko Biloba

Front 11

warfarin
INTERACTIONS (4)
food and dietary supplements
DECREASED EFFECTS

Back 11

green tea, ginseng, goldenseal, vitamin K (foods & supplements)

Front 12

warfarin
INTERACTIONS (13)
foods rich in
VITAMIN K

Back 12

liver, cheese, egg yolk, leafy vegetables (broccoli, cabbage, spinach, kale), oils (peanut, corn, olive, soybean)

Front 13

warfarin
CLIENT TEACHING (5)

Back 13

~Alert client to bleeding problems and how to respond
~Inform of frequent follow-up blood tests
~Instruct med must be taken on a daily basis
~use soft-bristled toothbrush, avoid contact sports, use electric razor, avoid IM inj
~caution with OTC meds, Vit K rich food, dietary supplements

Front 14

warfarin
NURSING CONSIDERATIONS (3)

Back 14

~Monitor client's PT and INR
~Review client's medication and dietary history
~Assess for bleeding and GI problems

Front 15

warfarin
ADMINISTRATION CONSIDERATIONS (4)

Back 15

~requires close monitoring
~frequent dose adjustments
~high potential for interaction
~Vitamin K is the antidote

Front 16

warfarin
ADMINISTRATION LEVELS (4)

Back 16

~1 to 15 mg daily
~effective PT 1.3-2.5 x control
~effective INR 2-3
~w/ cardiac valve replacement, 3-4.5