MLS ASCP - Coagulation & Hemostasis
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Primary hemostasis - CORRECT ANSWER - Vasoconstriction
platelet adhesion
platelet aggregation to form hemostatic plug at injury site
Secondary hemostasis - CORRECT ANSWER - interaction of coag factors to produce
fibrin
fibrin stabilization by factor XIII
Fibrinolysis - CORRECT ANSWER - release of plasminogen activator
conversion of plasminogen to plasmin
conversion of fibrin to fibrin degradation products
Prothrombin time (PT) - CORRECT ANSWER - Used to detect the deficiencies in the
EXTRINSIC & COMMON pathways. Monitor COUMADIN (warfarin) therapy. Use along w/
INR
(II,VII,X,V,I)
Can be stored for up to 4 hours at 4C
Activated Partial Thromboplastin time (APTT) - CORRECT ANSWER - Used to detect
deficiencies in the INTRINSIC & COMMON pathways. Monitor using HEPARIN
(V,X,VIII,IX,XI,XII,PK,I,II)
D-Dimer - CORRECT ANSWER - Used as a marker for DIC
Factor VII deficiency - CORRECT ANSWER - Prolonged PT ; normal APTT
, Factors PK,XII,XI,IX,VIII deficiencies - CORRECT ANSWER - normal PT; prolonged
APTT
Factor X,V,II,I deficiency - CORRECT ANSWER - prolonged PT; prolonged APTT
Removal of the spleen - CORRECT ANSWER - This might be the last resort in a patient
ITP...
II,VII,IX,X - CORRECT ANSWER - These factors require vitamin K
DIC - CORRECT ANSWER - Prolonged PT & APTT
Decreased fibrinogen
Decreased platelets
FSP present
POS for D-Dimer
Schistocytes present found in acute promyelocytic leukemia
Primary fibrinolysis - CORRECT ANSWER - Prolonged PT & APTT
Decreased fibrinogen
Normal platelets
FSP present
NEG for D-Dimer
Normal RBC morph
Sodium citrate - light blue - CORRECT ANSWER - Tube used for coag testing
Factor VII - CORRECT ANSWER - Tissue factor initiates extrinsic by activation of...
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Primary hemostasis - CORRECT ANSWER - Vasoconstriction
platelet adhesion
platelet aggregation to form hemostatic plug at injury site
Secondary hemostasis - CORRECT ANSWER - interaction of coag factors to produce
fibrin
fibrin stabilization by factor XIII
Fibrinolysis - CORRECT ANSWER - release of plasminogen activator
conversion of plasminogen to plasmin
conversion of fibrin to fibrin degradation products
Prothrombin time (PT) - CORRECT ANSWER - Used to detect the deficiencies in the
EXTRINSIC & COMMON pathways. Monitor COUMADIN (warfarin) therapy. Use along w/
INR
(II,VII,X,V,I)
Can be stored for up to 4 hours at 4C
Activated Partial Thromboplastin time (APTT) - CORRECT ANSWER - Used to detect
deficiencies in the INTRINSIC & COMMON pathways. Monitor using HEPARIN
(V,X,VIII,IX,XI,XII,PK,I,II)
D-Dimer - CORRECT ANSWER - Used as a marker for DIC
Factor VII deficiency - CORRECT ANSWER - Prolonged PT ; normal APTT
, Factors PK,XII,XI,IX,VIII deficiencies - CORRECT ANSWER - normal PT; prolonged
APTT
Factor X,V,II,I deficiency - CORRECT ANSWER - prolonged PT; prolonged APTT
Removal of the spleen - CORRECT ANSWER - This might be the last resort in a patient
ITP...
II,VII,IX,X - CORRECT ANSWER - These factors require vitamin K
DIC - CORRECT ANSWER - Prolonged PT & APTT
Decreased fibrinogen
Decreased platelets
FSP present
POS for D-Dimer
Schistocytes present found in acute promyelocytic leukemia
Primary fibrinolysis - CORRECT ANSWER - Prolonged PT & APTT
Decreased fibrinogen
Normal platelets
FSP present
NEG for D-Dimer
Normal RBC morph
Sodium citrate - light blue - CORRECT ANSWER - Tube used for coag testing
Factor VII - CORRECT ANSWER - Tissue factor initiates extrinsic by activation of...
