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ASCP Coag Hematology
ASCP Study coagualtion & hematology
|Chemicals that prevent blood from clotting are called what?
|Platelet peripheral zone is responsible for
|Platelet Solu-Gel zone is responsible for
|Platelet organelle zone is responsible for
|Bernard Soulier syndrome
|Platelet disorder with giant platelets causes a deficiency of Glycoprotein 1b a receptor for Von W Factor
|Count for platelets in hemocytometer
|The term used to indicate that a wound has stopped bleeding is?
|Chemicals released from a vein by injury are called?
|Chemicals released by platelets to induce narrowing of the blood vessel are known as?
|Chemicals in the plasma that stops blood clotting are called?
|All the individual blood factors will cause?
|Vascular Factor is also called?
|Von Wilebrand's Factor
|The messenger for platelets to aggregate at an injury site is?
|The test for Von Wilebrands factor is the
|Bleeding time test determines a deficiency in which factor
|Vascular or Von Wilebrands
|What is the normal value for the Bleeding Time?
|less than 7.5 minutes
|What is the test that replaces the BT
|PFA or PFT Platelet Function Assay/Test
|What changes to platelets does Vascular Factor affect?
|Platelets grow fingers & become sticky
|A hemostatic plug is made up of what?
|Normally platelets are not sticky & don't adhere to vessel walls. When sticky, where do they adhere (anatomical)
|Tunica media and adventitia
|The outer layer of a vein is the...
|The middle layer of a vein is the...
|The inner layer of a vein is the...
|Which coagulation test is for platelet function?
|In what tube is the PT test drawn?
|What is a normal range for the PT?
|What drugs are used to reduce clotting in patients with a disorder of platelets?
|Coumadin or Warfarin
|Does the PT test for Intrinsic or Extrinsic factors
|What is the INR
|International Normalized Results
|What is the normal INR result?
|between 0.9 and 1.1 INR
|The formula for INR is...
|Patient Results divided by the International normal.
|When drawing blood from a patient on anticoagulants what is of concern?
|bruising or hematoma
|What is the test for Plasma Factors?
|PTT Partial Thromboplastin time
|PTT test is used to monitor patients on which anticoagulant?
|What is the normal value for a PTT?
|7.5 minutes or less is normal value for which test?
|10 - 20 seconds is a normal range for which test?
|28 - 24 seconds is a normal range for which test?
|PT screens for abnormal blood coagulation triggered by exposure of plasma to what?
|Negatively charged surface
|Platelets are receptive to what protein?
|Aggregated platelets will combine with what to secure the hemostatic plug?
|The final steps in forming a clot is to activate a mechanism to contract?
|Von Wilebrands factor is found in which 2 places?
|Plasma and vessel wall