L2: Bleeding Disorders - Intro & Vascular Purpura Flashcards
(45 cards)
Def of Hemostasis
It’s the capacity to minimize loss oof blood following injury to a blood vessel.
Hemostasis Depends on …..
Etiology of Bleeding Disorders
Etiology of Bleeding Disorders
- Vascular
Etiology of Bleeding Disorders
- Platlets
Etiology of Bleeding Disorders
- Coagulation
General CP of Bleeding Disorders
General CP of Bleeding Disorders
- External Bleeding
General CP of Bleeding Disorders
- Internal Bleeding
- Intracranial
- intra abdominal
General CP of Bleeding Disorders
- Cutaneous Bleeding
- Petechiae
- Ecchymosis
- Purpura
- Hematoma
Compare Between Petechiae & Ecchymosis in Terms of
- Characters
- Site
- Size
- Surface
- Color
- Causes
Etiology of Vascular Purpura
Etiology of Vascular Purpura
- Acquired
Etiology of Vascular Purpura
- Congenital
Characters of Scurvy
TTT of Scurvy
Vit. C (200-500 mg/day oral)
Causes of Steroid Prupura
- Prolonged use of steroids → thinning of blood vessel wall
- Increased Endogenous steroids “e.g. Cushing syndrome”
Mechanism of Traumatic Asphyxic Purpura
Increased intra capillary pressure → rupture of blood vessels.
Examples of Traumatic Asphyxic Purpura
- Crushing injuries of the thorax
- Epileptic fits
- Severe chronic cough (as Whooping cough)
Def of Anaphylactoid Purpura (HSP)
- Small blood vesselsallergic vasculitis similar to rheumatic fever.
Incidence of Anaphylactoid Purpura (HSP)
- The most common cause of non thrombocytopenic purpura in children
Age of Anaphylactoid Purpura (HSP)
2-8 Years
Sex in Anaphylactoid Purpura (HSP)
Male > Female (2:1)
Etiology of Anaphylactoid Purpura (HSP)
