Questions
What are the factors in the Intrinsic Pathway?
a) V, VII, III, X
b) XIII, II, I, XIII
c) VIII, IX, XI, XII, HK, PK
d) VIII, VII, V, III Correct Answer-c) VIII, IX, XI, XII, HK, PK
What test would a physician order a test to monitor a patient on Heparin
therapy?
a) PTT (Extrinsic pathway)
b) aPTT (intrinsic pathway)
c) BT
d) TT Correct Answer-b) aPTT (Intrinsic pathway)
The aPTT tests for all factors except which?
a) X
b) VIII / XI
c) XIII / VII
d) III Correct Answer-c) Factors XIII - Common Pathway
, Factor VII is in the Intrinsic Pathway and would test normal with aPTT
test.
What is the PT (Extrinsic Pathway) Reference Range?
a) 0-10 seconds
b) 40-60 seconds
c) 5-20 seconds
d) 10-13 seconds Correct Answer-d) 10-13 seconds
Used data from PT lab from MLT 1330
What is the reagent used in the PT test?
a). prothrombin
b). fibrinogen
c). thromboplastin
d). Coumadin Correct Answer-c) thromboplastin
When running controls for PT test, what is the acceptable standard
deviation (SD)?
a) +/- 4
b) +/- 1