Thalassemia Flashcards
CF
-Severe anemia
-mongoloid/thalassaemic facies(read basis in notes)
-hepatosplenomegaly
other:recurrent inf,spontaneous fractures,hypersplenism,leg ulcer
transfused patients: secondary haemochromatosis,cirrhosis,arrythmia, cardiac failure
general blood parameter
Hb:2-6 g/dl
Hct,MCV,MCH,MCHC: severely dec
WBC:inc
platelet:n/dec fr massive splenomegaly
peripheral blood smear
severe microcytiv hypochromic anemia with anisopoikilocytosis
basophilic stripling
target cells
fragmented rbc
pencil cells
cells with cabot ring
numerous nucleated red cells
BM
Normoblastic erythroid hyperplasia
predominance of intermediate n late normoblast
inc iron due to inc dietary absorption n haemolysis
Hb electrophoresis
HBA: ABSENT
HBA2:N/INC
HBF:MARKED INC
HIGH PERFORMANCE CHROMATOGRAPHY
INC HBF
PRENATAL DIAGNOSIS
Molecular DNA analysis
biochem
bilirubin:inc
serum haptoglobin: marked dec
serum iron status:iron,ferritin,transferrin inc
TIBC: DEC