Coumadin and heparin are both anticoagulants; so what’s the difference between two. They do not dissolve clots; they only interfere with the coagulation process as a prophylaxis.
Courmarin derivatives are administered orally.
- They alter the synthesis of blood coagulation factors in the liver by interfering with the action of vitamin K
- Vitamin k is the antidote but in some cases fresh frozen plasma is given for bleeding complications.
- The action of coumarin derivatives is slower than that of heparin; therefore these derivatives are used as follow up for long term anticoagulant therapy.
- Lab test used is P t / I N R
Corticosteroid, alcohol, barbiturates and estrogen help stop bleeding, whereas NSAIDS and including aspirin and thyroid increase bleeding.
Heparin is not absorbed in the GI tract, so it is administered via I V or sub Q.
- heparin acts on thrombin to inhibit the action of fibrin.
- Standard Unfractionated type U F H can be administered I V or sub Q, but the Low Molecular Weight type is only administered subcutaneously.
- low molecular weight heparin include enoxaprin ( Lovenox) for which we don’t get rid of the air bubble.
- Currently used to prevent D V T in hip replacement or abdominal surgery patients.
- administer heparin in the abdomen two inches below unblicus.
- antidote for heparin is Protamine sulfate and the lab test is a P P T.