After evaluating a 12-lead electrocardiogram (ECG), you have determined the patient is suffering from a myocardial infarction. Your protocols state you are to administer heparin prior to the arrival at a percutaneous coronary intervention (PCI). Which of the following phenomena is most likely to occur, resulting in the drug's therapeutic effect? Deactivation of the intrinsic clotting pathway. Suppression of fibrin formation. Inhibition of ADP-induced platelet aggregation. Inhibition of vitamin K synthesis in the liver.
Added by Jeremy W.
Step 1
Heparin is an anticoagulant that primarily works by enhancing the activity of antithrombin III, which inhibits several clotting factors in the intrinsic and common pathways of the coagulation cascade. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 91 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Classify the following statements and characteristics with the appropriate method of clotting prevention. Heparin interferes with the formation of prothrombin activator. Heparin promotes the action of antithrombin. Circulatory shock interferes with it. Normal rates of blood flow account for it. Antithrombin deactivates thrombin before it can act on fibrinogen. It occurs when blood vessels are undamaged. Heparin blocks the action of thrombin on fibrinogen. Prostacyclin coats the vessel walls. Repulsion Dilution Anticoagulants
Adi S.
Heparin is a mucopolysaccharide extracted from beef lung and liver that inhibits the action of thrombin. What effect would thrombin have on the prothrombin time and APTT? Why was citric acid or oxalic acid used as an anticoagulant instead of heparin in these tests?
Madhur L.
Lepirudin is a drug that inhibits thrombin. it will have an effect specifically on the __________.
Sri K.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD