John Shared "Anti-coagulants" - 18 Picmonics
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Anti-coagulants
Coagulation Cascade
- Secondary Hemostasis
- Intrinsic Pathway
- Partial Thromboplastin Time (PTT)
- Heparin
- Extrinsic Pathway
- Prothrombin Time (PT)
- Warfarin
- Common Pathway
- Thrombin
- Convert Fibrinogen to Fibrin
- Stabilizes the Platelet Plug
2 mins
Warfarin
- Mechanism of Action
- Interferes with Vitamin K-dependent Clotting Factors
- Extrinsic Pathway
- Bridge with Heparin
- Indications
- Chronic Anticoagulation
- Side Effects
- Bleeding
- Necrosis
- Cytochrome P450
- Contraindications
- Pregnancy
- Antidote
- FFP + Vitamin K
2 mins
Warfarin Antidotes
- Antidotes
- Vitamin K
- Fresh Frozen Plasma
59 secs
Heparin Indications
- Indications
- Acute Coronary Syndrome (ACS)
- Prophylaxis
- Pulmonary Embolism
- Atrial Fibrillation
- Used during Pregnancy
1 min
Heparin Mechanisms
- Mechanism of Action
- Short Half-life
- Antithrombin Activation Cofactor
- Decrease Thrombin, Factor Xa
- Side Effects
- Bleeding
- Heparin Induced Thrombocytopenia (HIT)
- Antidote
- Protamine Sulfate
2 mins
Heparin Induced Thrombocytopenia (HIT)
- Pathophysiology
- 5-10 Days After Heparin Exposure
- Heparin-Platelet Factor 4 Complex
- Autoantibodies Form Against Complex
- Heparin-Platelet Factor 4-Antibody Complex Binds Platelets
- Platelet Aggregation
- Procoagulant Release
- Symptoms
- Thrombocytopenia
- Diagnosis
- Serotonin Release Assay (SRA)
- Treatment
- Stop Heparin, Start Direct Thrombin Inhibitor
2 mins
Enoxaparin (Lovenox)
- Mechanism of Action
- Inhibits Clotting Factors
- Factor Xa
- Indications
- Clot Formation Prevention
- Side Effects
- Heparin Induced Thrombocytopenia (HIT)
- Bleeding
- Considerations
- Medication Education
- Subcutaneous Injection
- 2 Inches from Umbilicus or Incisions
- Antidote
- Protamine Sulfate
2 mins
Aspirin
- Indications
- Fever
- Pain and Headache
- Cardiovascular Disease (CAD)
- Mechanism of Action
- Irreversible inhibition of COX-1 and COX-2
- Suppress Thromboxanes and Prostaglandins
- NSAID
- Side Effects
- Reye's Syndrome
- Tinnitus
- Peptic Ulceration
- Mixed Acidosis/Alkalosis
- Nephropathy
2 mins
Abciximab and Tirofiban (GP IIb/IIIa Inhibitors)
- Mechanism
- IIb/IIIa Receptor Inhibitors
- Inhibits Platelet Aggregation
- Indications
- Thrombotic Event Prevention
- Acute Coronary Syndrome (ACS)
- Percutaneous Coronary Intervention (PCI)
- Side Effects
- Bleeding
- Considerations
- Expensive
- Combination Drug Therapy
2 mins
Clopidogrel (Plavix)
- Mechanism
- ADP Receptor Antagonist
- Prevent Platelet Aggregation
- Indications
- Acute Coronary Syndrome (ACS)
- Prevention of Thrombotic Events
- Side Effects
- Bleeding
- Thrombotic Thrombocytopenic Purpura (TTP)
- Pancytopenia
- Abdominal Pain
- Considerations
- Withhold Before Surgery
2 mins
Alteplase
- Mechanism
- Tissue Plasminogen Activator
- Indications
- Thrombosis
- Side Effects
- Bleeding
- Contraindications
- Intracranial Hemorrhage
- Internal Hemorrhaging
- Considerations
- Minimize Bleeding
- Monitor for Shock
- Antidote
- Aminocaproic Acid
2 mins
Ticlopidine (Ticlid)
- Mechanism
- ADP Receptor Antagonist
- Irreversibly Inhibits Platelet Aggregation
- Indications
- Thrombotic Event Prevention
- Side Effects
- Neutropenia
- Thrombotic Thrombocytopenic Purpura (TTP)
- GI Distress
- Rash
- Considerations
- Withhold Before Surgery
- Monitor Blood Count
2 mins
Thrombotic Thrombocytopenic Purpura (TTP)
- Inhibition or deficiency of ADAMTS 13
- vWF Multimers are Not Degraded
- Microthrombi (and Emboli)
- Symptoms
- FAT RN Pentad
- Fever
- Anemia
- Thrombocytopenia
- Renal Dysfunction
- Neurologic Abnormalities (Altered Mental status)
- Treatment
- Plasmapheresis
- Corticosteroids
- Splenectomy
2 mins
Glanzmann Thrombasthenia
- Pathophysiology
- Autosomal Recessive or Acquired as an Autoimmune Disorder
- Deficiency of Glycoprotein IIb/IIIa (Gp IIb/IIIa) Receptor
- Defective Platelet-to-Platelet Aggregation
- Symptoms
- Mucous Membrane Bleeding (Gingival Bleeding)
- Easy Bruising
- Increased Bleeding Time
- Normal Platelet Count
- Considerations
- Avoid NSAIDs
2 mins
Von Willebrand Disease
- Mixed platelet and coagulation disorder
- Mechanism
- Autosomal Dominant Condition Leading to Reduced vWF
- Defect in platelet plug formation
- Labs
- Increased Bleeding Time
- PTT increased
- Factor VIII decreased
- Normal platelet count
- Treatment
- DDAVP (synthetic vasopressin)
1 min
Hemolytic Uremic Syndrome (HUS)
- Children
- Pathophysiology
- Preceded by Acute Diarrheal Illness
- Endothelial Damage
- Classic Triad of Symptoms
- Microangiopathic Hemolytic Anemia (MAHA)
- Thrombocytopenia
- Renal Failure
- Labs
- Helmet cells
- LDH
- Treatment
- Dialysis
- Supportive
2 mins
Disseminated Intravascular Coagulation (DIC)
- Pathophysiology
- Bleeding State
- Activation of Clotting Factors
- Deficiency of Clotting Factors
- Causes
- Sepsis
- Trauma
- Obstetric Complications
- Acute Pancreatitis
- Malignancy
- Nephrotic Syndrome
- Transfusion
2 mins
Bernard-Soulier Syndrome
- Mechanism
- Autosomal Recessive
- Deficiency of Glycoprotein Ib (GpIb) Receptor
- Symptoms
- Mucosal Membrane Bleeding
- Menorrhagia
- Easy Bruising
- Labs
- Large Platelets
- Increased Bleeding Time
- No Platelet Agglutination with Ristocetin
3 mins
