Anemias Flashcards
Blood picture of AA
Normocytic, normochromic
Leucopenia
Thrombocytopenia
Pancytopenia
Causes pf aplastic anemia
Ionizng radiation
Tumor of the thymus
Exposure to radicals
Congenital/hereditary
What are the exposure to radicals
Naphthalene, arsenical, benzene, chordane
Congenital and hereditary in aplastic anemia
diamond black fan viral hep, oncogenic virus
Ofi in AA
Decreased
Formed due to excessive destruction and shortening of the life span pf the rbc and it can be an acquired or congenital
Hemolytic anemia
Causes of HA
Presence of Ab
Due to toxins
Due to drugs
Due to inherited intracorpuscular anomaly
Due to the presence of Ab in HA spec what
Hdn
Ofi pf HA
Incease
Ha is can correlate to
Spherocyte
Includion bodies of HA
Howeel jolly
Blood picture of HA
High retics
Inc nrbc
Presence of poikilocytosis
2 main dicision that causes HA
Corpuscular defect and extracorpuscular defect
The problem is the rbc itself
Intrinsic
Defect in the cell mem
Pnh
Pnh is previously known as
marchiafava micheli
Inclusion bodies in HA under intrinsic
Hereditary spherocytosis, achantocytosis, elliptocytosis and zeive syndrome
Defect in intracellular enzyme iclude
Anaerobic glycolysis Hexokinas Phosphohexose isomerase Phosphoglycerate kinase Pyruvate kinase
Transfer of glucose to cell
Hexose monophosphate shunt or g6pd
Enzyme involve in methemoglobin
Glutathione synthetase
What are wxtrinsic that cause HA
Acquired autoimmune HA PCH Infection Drugs Chemicals Mechanical Physical agents
Under chemicals
Benzene
Aniline
Lead
Acquired autoimmune HA
Blood transfusion
Mechanical
Externous exercise
Ass with exposure to cold temperature due to the presence of cold agglutinin ab called
Donath landsteiner hemolysin/ pch
Colored of urine sa,ple of PCH
Tea sampled
Ass with complement mediated hemolysis
PNH
Due to a ded of activity of acetyl cholinesterase that is found in the cell membrane
PNH
Due to the presence of HbA variant causes sickling of RBC under reduce oxygen tension
Sickle cell anemia
Inclusion bodies of SIckle cell anemia
Howell jolly and cabots ring
Sickle cell causes
Vaso occlusive crisis
Blood picture of sickle cell anemia
Normocytic normochromic Sickle cell Thrombocytosis Neutrophilia Anistocytosis Poikilocytosis
OFI of sickle cell
Dec
Presence of 2 HbS
Homozygous SC
Carrier they have the sickle cell trait
Heterozygous sc
Simple test for sickle cell anemia
Scribr and waugh method
Normal 2 aloha and 2 beta chain
HbA
Method becsuse it uses deoxygenizers
Daland and Dasilva
Sample of deoxygenizer
2% ascorbic acid, 2% na metabisulfite, 2% na dithionite
Uses formol saline solution
Shermans method
To seal and prevent the entrance of oxygen
Mineral oil
Comoutation in sickle cell anemia
of sc/100x100
40% is observed after an hr in Sc has
Sickle cell anemia
1% of SC after an hour
Sickle cell trait
Due to abnormal production rate pf the one of the polypeptide chain of hb molecule. It can be alpha or beta
Thalassemia
Other name of thalassemia
Cooleys anemia, mediterranean anemia
Predominant cell of target cell
Hereditary leptocytosis
Common in southeast asia
Alpha and beta thalassemia
Indices of thalassemia
Microcytic hypochromic
Inclusion bodies of thalassemia
Howell jolly bodies
Blood picture
Poikilo
Anisto
Inc nucleated nrbc
Hepatosplenomegaly jaundice
OFI of thalassemia
Decrease
Inclusion bodies of beta thalassemia
Heinz and howell jolly bodies
Cause by point mutation that results in premature chain termination or abnormal transcription of rna that leads to formation of reduce/absence of b globin chain
Beta thalassemia
Predominance od hbF
Beta thalassemia major