The section Daily EDAIC-MCQ series covers a different topic each day with the intent that candidates can prepare one small topic each day, making steady progress in their exam preparation.
Regarding DVT
- Platelets form the greatest bulk of the thrombus
- Sickle cell anaemia is a cause
- A positive Homan’s sign is diagnostic
- Pulmonary embolism is commonest with thromboses below the knee
- Destruction of vein valves is a feature
1. FALSE 2. TRUE. 3. FALSE 4.FALSE 5.TRUE
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Explanation:
- A thrombus consists mainly of red cells and fibrin(red thrombus).
- Sickling in sickle cell crisis leads to increased blood viscosity which is associated with both arterial and venous thrombosis.
- Homan’s sign, pain in calf on dorsiflexion of the foot, also occurs with other lesions of the calf.
- Moses sign is a pain/tenderness elicited by application of firm pressure or squeezing the calf or foot of the patient.
- Moreover, the pain and tenderness do not correlate with the actual size of the underlying thrombus.
- Pulmonary embolism is most common with DVT from an iliofemoral thrombosis (80%), and rare with those below the knee (20-30%).
- In DVT, deep vein valve destruction leads to painful swollen limbs, oedema and venous eczema.
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