WildLife Group of the SAVA
Question 5 . Which of the following factors pre-disposes to clotting in EDTA blood samples ?
a . Inadequately filled blood tube . b . Gentle inversion of the tube after blood collection . c . Wrapping blood samples in paper towel for transport . d . Transporting samples at 4-12 ° C . e . Refrigerating samples overnight .
Question 6 . Which of the following statements about blood samples collected into citrate anti-coagulant is untrue ?
a . Tubes must be filled with blood to the correct level . b . Can be used for determining prothrombin time ( PT ). c . Can be used for determining activated partial thromboplastic time ( APPT ). d . Can be used for other haematological tests in addition to PT and APTT . e . A control sample from a normal animal of the same species should accompany the test sample .
Question 7 . For which of the following laboratory assays should heparin blood samples not be used ?
a . Toxicological analyses . b . Nucleic acid amplification ( PCR ) tests . c . Blood chemistry . d . Endocrine assays . e . Lead determination .
Question 8 . Which of the following blood tube chemicals inhibits glycolysis ?
a . EDTA . b . Clot-activator . c . Fluoride . d . Citrate . e . Heparin .
Question 9 . After clot solidification has occurred in serum separator gel tubes , for how long should the samples be centrifuged in a fixed angle bucket centrifuge ?
a . 2 minutes . b . 3 minutes . c . 5 minutes . d . 10 minutes . e . 15 . minutes .
Question 10 . Which of the following blood samples should not be refrigerated ( 4-12 ° C )?
a . Un-separated plain red stopper serum . b . Un-separated yellow stopper gel serum . c . EDTA blood sample . d . Citrate blood sample . e . Fluoride blood sample .
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