MASSACHUSETTS GENERAL HOSPITAL
Department of Pharmacy
Department of Nursing
Critical Care
Generic Name: |
Heparin |
Trade Name: |
|
Action: |
Anticoagulant Anti-thrombin III Co-Factor |
Indications: |
Unstable angina pectoris Adjuvant therapy to thrombolysis Status post ptca Arterial / venous pulmonary thromboemboli Disseminated intravascular coagulation |
Administration Guidelines: |
|
Usual Dosage Range and Route: |
LOADING DOSE : 80 units/kg *LOADING DOSE IS USUALLY GIVEN PRIOR TO STARTING MAINTENANCE* MAINTENANCE DOSE : 500 to 1500 units/hour TO MAINTAIN PTT 1.5 - 2.5 times CONTROL
|
Standard Concentration: |
25,000 units / 250 ml 0.45% NaCl (PREMIXED) MICROINFUSION: 25,000 units / 50 ml
|
EW Standard |
25,000 units / 250 ml 0.45% NaCl (PREMIXED) |
Special Considerations: |
- Draw PTT prior to, 6 hours post initiation of therapy and 6 hours post any dosage adjustment -PTT should be drawn twice daily during maintenance therapy - Should be used with caution with any clinical state in which there is an increase risk of bleeding (e.g. gi bleed, post-op) - approximately 100 units = 1mg (for cardiopulmonary bypass conversion) |
Precautions and Side Effects |
- Hemorrhage, bleeding from iv sites - Anaphylaxis - Type I and II thombocytopenia -Increased risk of bleeding in patients on coumadin, aspirin, ticlopidine or plavix |