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Which one of these statements is true concerning vitamin K and vitamin K deficiency?
A. Vitamin K is derived from meat products
B. It is required to cleave fibrin from its precursor form
C. Breastfed babies are at less risk of haemorrhagic disease of the newborn (vitamin K deficiency)
D. In haemorrhagic disease of the newborn the peak incidence is on the second to fourth day of life, and the PT and APTT are both abnormal
D.
Which one of these is not a recognized cause of disseminated intravascular coagulation?
A. Amniotic fluid embolism
B. Meningococcal septicaemia
C. Postoperative bed rest
D. Snake bite
E. Thromboplastins released by damaged liver cells
C. Risk of thrombosis not DIC
Which one of these is not a typical feature of disseminated intravascular coagulation?
A. Reduced platelet count
B .Fibrinogen concentration is increased
C .High levels of fibrin degradation products (d-dimers)
D .PT and APTT are often prolonged
B. Usually concentration is decreased
Which statement is not true in Haemolytic Uraemic Syndrome?
A. diarrhoea is a feature
B. ultra-large vWF is a feature
C. Shiga-toxin binds to the Gb3 receptor on the surface of the glomerular endothelium
D. Most commonly effects those aged 40-60
D. Affects children and the elderly
Which of these is not an acquired vascular bleeding disorder?
A. DIC
B. Scurvy
C. Henoch-Schönlein syndrome
D. Senile purpura
A. DIC is a coagulation disorder