Thalassemias & Hb Types
Thalassemia
Hb A
Hb A
2
Hb F
Hb Lepore
b
o
(
b
+
/
b
)
b
o
(
b
o
/
b
)
db
o
(
db
o
/
db
)
Hb Lepore(Hb L/
b
)
(
b
+
/
b
+
)
(
b
+
/
b
o
)
(
b
o
/
b
o
)
(Hb L/Hb L)
B
++
(
b
++
/
b
++
)
db
o
(
db
o
/
db
o
)
V
V
V
NL
NL
NL
5-20%
100%
75%
5-15%
25%
Minor
Major
Intermedia