Ex 8 Flashcards
(24 cards)
liver tests are ordered along with coagulation test. These include:
Aspartate Aminotransferase (AST)
Alanine Aminotransferase (ALT)
Normal platelet count
150000-450000
Platelets over 450000
Throbocytosis
Platelets less than 150000
Thrombocytopenia
Normal PT value (seconds)
10-15 sec
measures how long it takes for a
clot to form in a blood sample
Prothrombin time
is a type of calculation based
on PT test results.
International normalize scale
Normal INR range
INR range taking warfarin
0.9-1.3
2-3
If INR is more than 1.3
Increase chances of bleeding
If INR is less than 0.9
More chances of blood clots
What to do if If PT or INR is slightly elevated
withhold warfarin for 24 to 48 hr
What to do If PT or INR is elevated and bleeding occurs
Administer 10 mg of phytonadione (vitamin K)
It measures how long it takes your blood to form a clot (measures intrinsic system)
aPTT Test
aPTT is used to monitor?
Heparin
Antidote for heparin and warfarin
Protamine sulfate - heparin 1mg
Vitamin k - warfarin 10mg
The only apparatus required is a microscope slide. (Intrinsic pathway)
Slide/Millan’s slide method
Blowing tubes
Wright’s method
Also known as Finger-stick blood samplers
Lancet
used to monitor the heparin therapy, but now it is replaced by the APTT.
Test tube/Lee-white method
Devices that measure the clotting
mechanisms of hemostasis
Coagulation Analyzer
Principle that uses blood
viscosity changes to determine clotting
time.
Mechanical impedance
Principle that monitor changes
in the specimen’s optical density to detect the beginning of clot formation.
Photometric principle
Principle When a clot
forms, it entangles the magnet, breaking the electromagnetic coupling and allowing the magnet to rotate with the tube,
Electromagnetic principle
Normal eange for aPTT (seconds)
21-35 Sec
