Thalassemia Flashcards
1
Q
What type of Disease is T ??
A
Autosomal recessive disorders
247 Z
2
Q
Cause of T ??
A
- Reduction / Absent production of one or more of the globin chains
247 Z
3
Q
Alpha T type ??
A
- 1 gene deletion = Silent carrier
- 2 gene d = A-T trait
- 3 gene d = HbH Disease
- 4 gene d = Hb Bart Hydrops fetalis
248 Z
4
Q
Type of T ?
A
- Alpha T
- Beta T
248
5
Q
Beta T type ??
A
- B T minor
- B T intermedia
- B T major / Cooleys anemia
248 Z
6
Q
Alpha T chain damage ??
A
no alpha = A0
Reduced alpha = A -
248
6
Q
Normal Hb chain distribution ??
A
2 alpha
2 beta
248 Z
7
Q
Beta T chain damage >?
A
no beta= B0
Reduced Beta = A -
8
Q
Alpha T manifestation ??
A
- Reduced / No A chain
- Excess B chain
248 Z
9
Q
Reduced/No A chain in A T ??
A
- Hb A
- Hb A 2
- Hb F
248 Z
10
Q
Beta T manifestation ??
A
- Reduced / No B Chain
- Excess A chain
10
Q
Excess B Chain in BT ??
A
- HbH - B4
- Hb Bart- Gamma 4
248
11
Q
Reduced / No B chain in B T»_space;???
A
- Hb A - A2B2
248
12
Q
Excess A chain in A T ??
A
- Hb A2
- Hb F
13
Q
Clinical features of Silent carrier in AT ?
A
No anemia
248
14
Q
Clinical features of A T Traits ?
A
- Mild anemia
- Inc RBC count
248
15
Q
A
15
Q
Clinical in HbH disease ??
A
Severe hemolytic anemia
248