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STS 650 chapter 9

Meds that affect Coagulation

QuestionAnswer
What is a thrombolytic? agents used to help to speed the breakdown of EXISTING blood clots
Does blood contain BOTH coagulants and anticoagulants? T or F True
Name 3 stages of clot formation and describe Thromboplastin is formed, Thromboplastin converts prothrombin into thrombin, and Thrombin converts fibrinogen to fibrin
Clotting that takes place in a broken blood vessel is a thrombus, T or F? False
What are coagulants? Drugs that promote or accelerate, or make possible blood coagulation
T or F Hemostatics are agents that decelerate blood clots at a surgical site False
Gelatin hemostats can ONLY be used when moistened with saline False
Give an example of a gelfoam used in an otologic surgery, what is the name of it? pledgets
Name 2 "flowable " types of absorbable gelatin Floseal and Surgiflow
Absorbable sponges are made from purified bovine collagen T or F True
Avitene Microfibrillar Collagen Hemostat (MCH) is a wet preparation of porcine collagen. T or F False
What leads to the formation of a fibrin clot when applying an MCH? Direct pressure
Avitene available in a powder form called "flour" T or F True
Surgicel is absorbable and bactericidal. T or F True
How is thrombin measured? in units
Thrombin is an enzyme that helps start the cascade of blood-clotting. T or F True
Name 3 ways thrombin can be applied Topically in a solution, powder, in combination with a gelatin sponge
What are 2 examples of a fibrin SEALANT? Tisseel and Evicel
Freeze dried thrombin examples are Surgiflo and Floseal. T or F True
What is bone wax made from? Bees wax
Bone wax is used as a matrix for clotting? T or false False
Name 2 ways that bone wax is applied Gloved fingers and on an instrument
Tannic acid is made from animal collagen. T or F False
Name a surgery that tannic acid is used? Tonsillectomy
Silver nitrate is safe to use around the eyes. T or F False
Silver nitrate can cauterize wounds and removes warts. T or f True
Name the brown mixture of ferrous sulfate, sulfuric acid, and nitric acid diluted with water. Monsel's solution
What are the 2 blood factors missing if one is a hemophiliac? VIII and IX
Define anticoagulant drugs that prevent or interfere with blood coagulation
Anticoagulants dissolve formed clots. T or F False
Anticoagulants are used in surgery to help prevent clot formation as a response to trauma or manipulation of blood vessels. T or F True
Name 3 ways Parental drugs are administered IV, subq, and topically
What is the primary anticoagulant used intraoperatively in peripheral and cardiovascular procedures? Heparin
Heparin can be administered directly into the affected artery through an irrigating catheter to clear out debris. Tor F True
The antagonist for Heparin is Coumarin. T or F False
Are oral anticoagulants ok to use in an emergency situation? No
What is the antedote for excessive Warfarin? Vitamin K
Fresh frozen plasma (FFP) can be administered in emergency situations. Tor F True
Aspirin is considered an anticoagulant. T or F True
Created by: Surgtek001
 

 



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