ACQUIRED COAGULATION DISORDERS Flashcards
D.I.C
Reduction in __________ due to __________ initiated by a variety of events
circulating clotting factors
intravascular thrombosis
PATHOGENESIS of DIC
Release of tissue thromboplastin
→ activation of ——— system e.g. ____ trauma, ______ complications, ________ episodes and malignancies.
- Severe endothelial damage
→ activation of ______ system e.g. ______,_________.
Direct ______________ e.g.
septicaemia
Secondary activation of ————-
→ _______
_________ of clotting factors and platelets
extrinsic; surgical; obstetric; acute haemolytic
intrinsic; Gram-ve septicaemia, burns
induction of platelet aggregation
fibrinolysis; FDP
Consumption
Haematological findings of DIC:
- Thrombo________
- Blood film shows ___________
etc
- ________ Bleeding time , ______ PT , _________PTT
- _________ Fibrinogen
_______ factor V and VIII
- _____ Present
cytopenia
redcell fragments
Increased, increased, very increased
Decreased; decreased
FDP
AETIOLOGY OF DIC
Obstetric Accidents
◼___________
◼__________
◼________
◼ IUD
Abruptio placenta
amniotic fluid embolism
Eclampsia
AETIOLOGY OF DIC
List 9
Septicaemia, gram-ve meningococcal
Haemolytic transfusion reaction
Liver disease especially liver failure
Acute promyelocytic leukaemia
Massive surgery
Obstetric Accidents
Disseminated Ca
Snake bite
Severe hypersensitivity reaction
CLINICAL FEATURES OF D.I.C
Three Clinical forms
(a)________ DIC
(b)_____________ DIC
(c)________ DIC
Compensated
Chronic or subacute
Acute
CLINICAL FEATURES OF D.I.C
Three Clinical forms
(a) Compensated DIC - ___ symptoms,
only demonstrated in the ________
(b) Chronic or subacute DIC -________ symptoms like _______ and ______
(c) Acute DIC - Presents with _________ and _________
No; laboratory
Occasional mild; bruises and progressive organ failure
widespread bruising and bleeding
Majority of D.I.C fall into which category?
Compensated, chronic, or acute ?
Compensated and chronic
DIC
Symptoms and signs may be related in
most instance to the condition
causing the DIC.
T/F
T
Symptoms due to DIC persey
-_______
-____________due to ischaemia
- _____________________________
Bleeding
Organ damage
Micro angiopathic haemolytic
anaemia
DIAGNOSIS OF COMPENSATED
DIC
••Test to detect platelet activation
–_______
-__________
••Test to show increased coagulation
factor activation and thrombin generation.
-increased ________level
-Decreased level of two main inhibitory
proteins (_______,________)
P/F factor Cf; Thromboxane A2
fibrinopeptide A
Antithrombin III, Protein C
Treatment of DIC
Principles
(a)________________
(b) ___________ of _______ and ______
(c) _______ of the Clotting process with _____ or other agents.
elimination of primary cause of DIC
Replacement of coagulation factors and platelets
Inhibition; heparin
TREATMENT OF ACUTE DIC
General support measures
–______
- blood
-______ care
- Antibiotics
Elimination of _________
Replacement of coagulation factors and platelets
◼ _____
◼______
◼ _______
Repeat above as indicated by lab or clinical observation.
___________________
fluids; respiratory
primary cause of DIC
FFP; Cryo ppt; Platelets
Inhibition of clotting process with Heparin or other agents
Bleeding associated with Liver
disease, why ?
__________ develops in end stage
liver disease
Abnormal ______ function
Reduced platelet production due to
__________
Acquired ______________
Renal failure
endothelial
thrombopoietin
platelet dysfunction