MRCP Part 2 Flashcards
(11 cards)
What is Zieve Syndrome?
Coombs-negative haemolysis
cholestatic jaundice, and transient hyperlipidaemia
associated with heavy alcohol use, typically following a binge.
typically resolves with abstinence from alcohol
What is Evans Syndrome
ITP + AIHA
Which is the only clotting factor that is unique to PT
Factor VII
Both APTT and PT are prolonged in which factor deficiency
1, 2, 5, 10
When is mixing study used and what does it show
When PT/APTT is prolonged, they are added to serum plasma. If values normalise - factor deficiency
if they do not - indicates presence of inhibitors such as lupus anticoagulant
Should anticoagulation be given in UC patients?
Yes, because UC is a prothrombotic condition and LMWH is given, but UFH is better if considering surgery for severe flare.
mechanism behind TRALI
Donor anti HLA Ab inhibits the neutrophils in pulmonary capillaries causing endothelial damage as result of cytokine damage due to neutrophils sequestration causing non-cardiogenic Pulmonary Oedema
What type of hemolysis occurs in Paroxysmal Cold Haemoglobinuria and what triggers this
Acute intravascular hemolysis, triggered by cold
What is the key pathogenic antibody in Paroxysmal Cold Haemoglobinuria and what is its target?
Donath LAndsteiner body and target is P blood group antigen
Describe the biphasic action of the Donath–Landsteiner antibody
Binds RBCs in cold, then on warming activates complement → hemolysis