topic 8 hematologic system drugs Flashcards
what do anticoagulants do
inhibit clot formation, phrophylactic
contraindications for anticoagulants
clotting issues, head injury, hemorrhagic stroke, head trauma, surgery, spinal surgery, low platelets
CAMS for anticoagulants
garlic, ginkgo, ginsing, green tea, bilberry
pt education for anticoagulants
don’t take aspirin or anti-platelet drugs, caution w injuries, soft toothbrush, electric razor, wear medical ID bracelet
routes for heparin
IV for acute thrombosis
SQ prophylactically
uses for heparin
** short 1/2 life, good for hospital use, not at home
prevent thrombosis associated with PE, MI, unstable angina, prosthetic heart valves, DVT, and percutaneous coronary intervention
labs for heparin
PTT/aPTT
when do you need to stop heparin before surgery?
1 hour
where is heparin poorly absorbed
GI tract
antidote for heparin and enoxaparin
protamine sulfate
drug interactions for anticoagulants
aspirin, thrombolytics, NSAIDs, SSRIs, antibiotics
side effects of warfarin
Headache, GI distress, alopecia
Fever, weakness, priapism
elevated hepatic enzymes
adverse effects of heparin and enoxaparin
Bleeding, hematoma, anemia, fever, elevated liver enzymes – see antidote
side effects of heparin and enoxaparin
itching, chills, hematoma, injection site reaction
how is enoxaparin different than heparin
2x longer 1/2 life, only given SQ
can anticoagulants decrease platelet count
yes
how is warfarin given
PO, long 1/2 life, what pt goes home on
is warfarin high protein bound
yes
MOA of warfarin
depresses hepatic synthesis of vitamin K clotting factors
antidote for warfarin
vitamin K
pt education for warfarin
dont eat foods w vitamin K: brocolli, dark leafy greens, olive oil, swiss chard, parsley, tomatoes, squash
what decreases the effects of warfarin
laxatives, birth control, vitamin C, K
adverse effects of warfarin
Purple-toe syndrome, bone fracture, hypotension
Chest pain, elevated hepatic enzymes
HEMORRHAGE
normal side effects of warfarin
headache, GI distress, alopecia, fever, weakness