HEMA LAB 17-20 Flashcards
(38 cards)
preferred anticoagulant for APTT
sodium citrate
same lng ng pt ung rpm at number of minutes sa centrifuge
1 500 rpm for 15 mins
APTT can measure platelets and factor XIII
false
what factors can APTT measure?
factors VIII, IX, XI…also Prekallikren or FLetcher
what therapy can APPT monitor
heparin theraphy
used to measure the availability of functional fibrinogen
thrombin time
when is TT prolonged?
cases of low levels of fibrinogen
- fibrinogen function is impaired
- presence of heparin, fibrin/fibrinogen products and thrombolytics agents(i.e. streptokinase)
a soluble plasma protein that is instrumental in the normal coagulation process
fibrinogen
another name for fibrinogen
factor I
is added to undiluted plasma
low potency thrombin
thrombin reagent consists of
- thrombin time reagent (bovine)
- lyophilisate for 1mL
end products of thrombin clotting assays
insoluble fibrin polymers
basahin niyo nlng ung two stages sa lab manual (TT ito)
ANG INIT DITO SA DORM SHET
what do you pour in a wassermann tube up to about one inch from the rim (CRT)
castor oil
what do you use to aspirate blood up to the 20 cu mm mark (CRT)
sahli’s pipette
what kind of formation do you want to observe on the surface of the drop of blood
formation of dimpling or nipple like protrusion
indicates the endpoint of HIRSCHBOECK method
formation of dimpling or nipple like protrusion
another name for HIRSCHBOECK method
castor oil method
is stefanini or test tube method a qualitative or a quantitative test?
quantitative
where do you place 3-5 ml of venous blood (stefanini method)
chemically clean wassermann tube
do you use a water bath in the test tube method? (CRT)
yes
observe the tube at what succession of hours? (CRT)
1, 2, 16, 18, 24 hours
what to do when blood adheres to the wall of the tube (CRT)
rim the clot with a stiff straight wire to detach the clot from the wall of the tube
Retraction begins within how many hours
1 hour
