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Heparin Monitoring Guidelines

Heparin is used to prevent blood clotting. It is an anticoagulant and is often administered with an IV during surgical procedures or for patients who must stay in bed for extended periods of time. It is imperative to monitor the heparin administration to prevent dangerous side effects and reactions. Heparin should always be prescribed by a doctor.

  1. Proper Use

    • Most patients receiving heparin are getting their prescription in a hospital setting. Under these circumstances, nurses and other health care professionals will monitor your heparin dosages regularly to prevent excess bleeding or other complications. An assay will be done every four to six hours with adjustments made if necessary. Heparin is often administered concurrently with warfarin, according to the UAB Coagulation Service. Treatment is usually stopped within five days of initial dosing. Platelet count should not drop below 30-50 percent of its normal range. If this occurs, your medical provider will stop heparin and seek an alternative. Should bleeding continue to be excessive, you may be given protamine sulfate.
      If you are taking heparin at home, be sure to follow your prescription as indicated by your doctor. If you happen to miss a dose, take it as soon as you remember. Should this be close to another heparin dose, skip the dose or contact your doctor or pharmacist immediately. It is good practice to keep a medicine log of the times when you should take your medication and note when you actually did. This prevents accidental overdose.

    Side Effects

    • As an anticoagulant, bleeding side effects need to be carefully monitored. You should consult with your doctor if your gums bleed when brushing your teeth. Blood in your urine, stool or vomit is not common. Some people may have frequent nose bleeds or excessive bleeding with cuts and lesions.
      In addition to bleeding issues while on heparin, you should be aware of the more rare side effects that would require immediate medical attention. These include abdominal pain and swelling, constipation, dizziness, headaches, joint pain, chills and chest pain. Chills and fever are not normal, nor should you be vomiting with this medication.

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