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1
Alkali denaturation methods for Fetal Hemoglobin
BETKE, SINGER
2
Quantitation of the percentage of HbF in the blood
ALKALI DENATURATION
3
This serves as positive control for HbF alkali denaturation
FETAL UMBILICAL BLOOD
4
HbF reference value using modification by betke
0.2-1.0%
5
Recommended HbF quantitation range of HbF by NCCLS
2-40%
6
This must be performed when HbF is less than 2%
RADIO IMMUNOMETRIC ASSAY
7
This must be performed when HbF is more than 40%
COLUMN CHROMATOGRAPHY
8
Also known as__Determines the presence of fetal red cells in the maternal circulation to assess whether the distribution of HbF in all red cell is the same. It is useful for the diagnosis of Hemolytic Disease of the Newborn
ACID ELUTION, MODIFICATION OF KLEIHAUER AND BETKE BY SHEPARD
9
In Acid Elution, Hemoglobins other than Hb F are eluted from the red cells on an air-dried blood film by a
CITRIC ACID PHOSPHATE BUFFER
10
What is the pH of citric acid phosphate buffer
3.3
11
This hemoglobin only remains in the fixed cell in acid elution
FETAL HEMOGLOBIN
12
Stain used for HbF acid elution
EHRLICH ACID HEMATOXYLIN
13
Counter Stain used for HbF acid elution
ERYTHROSIN
14
The appearance of RBCs w/ HbF after acid elution
BRIGHT PINK-RED
15
The appearance of RBCs w/o HbF after acid elution
GHOST CELL
16
This condition shows even distribution of HbF among red cells
HEREDITARY PERSISTENCE OF FETAL HEMOGLOBIN
17
This condition heterogenous distribution of HbF among red cell
THALASSEMIA, HEMOGLOBINOPATHY
18
For the detection and preliminary identification of both normal and abnormal Hbs.
CELLULOSE ACETATE ELECTROPHORESIS
19
pH used in Cellulose Acetate Electrophoresis
8.4-8.6
20
Detects small amounts of either Hb A or F in the presence or large amounts of the others. This reveals small amounts of adult Hbs A and S present at birth in cord blood. Separates hb that migrate together on cellulose acetate.
CITRATE AGAR ELECTROPHORESIS
21
pH used in Citrate Agar Electrophoresis
6.0-6.2
22
Citrate Agar Electrophoresis is based on the principle of which interactions among Hb variants, agar and citrate buffer ions; altered electrical charge of the various Hbs at acid pH
SEPARATION OF HEMOGLOBIN
23
Refers to a disease state involving the hemoglobin molecule result form a genetic mutation in one or more genes that hemoglobin synthesis
HEMOGLOBINOPATHY
24
Thalassemic disorders
QUANTITATIVE DEFECT
25
Decreased or non-existent production of one or more globin chain
THALASSEMIC DISORDER
26
Type of Thalassemic disorder c'mon in asians
ALPHA
27
Type of Thalassemic disorder c'mon in Mediteranean
BETA
28
Type of Thalassemic disorder c'mon in Africa
ALPHA, BETA
29
Result from the alteration of the DNA genetic code for the chains
STRUCTURAL HEMOGLOBINOPATHY
30
Structural hemoglobinopathy
QUALITATIVE DEFECT
31
Also known as __Amino acid substitution when O2 is reduced at the tissue level polymerizes leading to the formation of tactoid crystals which cause the cells to become rigid.
HEMOGLOBIN S, SICKLE CELL ANEMIA
32
Hb S gene has provided resistance from what parasite
PLASMODIUM FALCIPARUM
33
Characteristics of HbF
HIGH OXYGEN AFFINITY, DECREASED 2,3 DPG AFFINITY, ACID AND ALKALI RESISTANT, SLOWER THAN HBA1
34
This serves as negative control for HbF alkali denaturation
HBA1, ADULT BLOOD
35
Reagent used for HbF alkalie denaturation
DRABKINS
36
An alkali solution that denatures HbA1 but not HbF in alkali denaturation
SODIUM HYDROXIDE
37
This reagent stops reaction in HbF alkali denaturation
AMMONIUM SULFATE
38
Filtrate of HbF in alkali denaturation is measured via
SPECTROPHOTOMETER
39
Conditions that may elevate HbF level
HEMOGLOBINOPATHY, B-THALASSEMIA, HEREDITARY PERSISTENCE OF FETAL HEMOGLOBIN
40
A condition caused by mutation of the synthesis od gamma chain leading to increase HbF
HEREDITARY PERSISTENCE OF FETAL HEMOGLOBIN
41
C'monly used quantitation method of HbF in blood banking
ACID ELUTION
42
Antigen present in Rh+ blood
D ANTIGEN
43
Immunoglobulins capable to cross at placenta
IMMUNOGLOBULIN G
44
In alkaline pH, hemoglobin proteins migrate to what polar of the electrophoresis
ANODE
45
Hemoglobin proteins migration to anode fastest to slowest in Celullose Acetate Electrophoresis
A, F, SDG, A2CEO
46
What hemoglobin migrates to cathode in citrate agar electrophoresis
A, F
47
What hemoglobin migrates to anode in citrate agar electrophoresis
S, C
48
Hemoglobin synthess is normal but molecules is altered amino acid sequence in the globin chains
QUALITATIVE HEMOGLOBINOPATHY
49
Hemoglobin synthesis is reduced but molecules do not affect amino acid sequence of the amino acid sequence of the globin chains.
QUANTITATIVE HEMOGLOBINOPATHY
50
Mutation
QUALITATIVE
51
Deletion
QUANTITATIVE
52
Most c'mon hemoglobinopathy
HEMOGLOBIN S
53
Hemoglobinopathies are c'monly caused by mutation in what part of beta globin amino acid
6TH, GLUTAMINE
54
Hb S is result of glutamine mutation to
VALINE
55
Hb S molecule polymerizes leading to the formation of __causing cell to become rigid
TACTOID CRYSTAL
56
Inheritance of Hemoglobinopathy which is severe as HbA1 is no longer produced
HOMOZYGOUS
57
Inheritance of hemoglobinopathy which is less severe as about 50% of HbA1 is still produced
HETEROZYGOUS
58
Measures the degree of anisocytosis
RED CELL DISTRIBUTION WIDTH
59
In sickle cell, anemia is usually severe causing RDW to
INCREASE
60
Sickle cell anemia progression may lead to what conditions
RETARDED GROWTH, SEXUAL MATURATION
61
RBC inclusions due to DNA remnants
HOWELL JOLLY BODY
62
RBC inclusions due to iron deposits
PAPPENHEIMER BODY
63
Howell jolly body may be associated with
HYPOSPLENISM, ASPLENISM, SEVERE HEMOLYTIC ANEMIA
64
This refers to any situation that produces excessive deoxygenation of RBCS crises
SICKLE CELL CRISES
65
Refers to sickle crises when Sickle cell obstruct blood vessels leading to cyanosis and necrosis
VASOOCCLUSIVE CRISES
66
HbA compensates for HbS which patients usually have no symptoms unless in cases of extreme tissue hypoxia
SICKLE CELL TRAIT, HB AS
67
Percentage of HbS in sickle cell trait
30-45%
68
Screening test for sickling hemoglobin which turbidity is read against a newsprint/reader card with thin black lines
DITHIONITE SOLUBILITY TUBE TEST
69
Lysing agent in diothionite solubility tube test
SAPONIN
70
Deoxidizing agent which binds to oxygen in dithionite solubility tube test
SODIUM DITHIONITE
71
Anemia with numerous target cells that polymerizes under low O2 tension which structures differs from HbS
Hb CC, HOMOZYGOUS Hb CC
72
Hb CC is result of glutamine mutation to
LYSINE
73
Hb CC crystals appearance
HEXAGONAL, ROD SHAPED
74
RBCs are slightly hypochromic target cells
HB C TRAIT
75
Milder than Hb SS that looks like pocketbook cell
Hb SC
76
Hb SC crystals appearance
HAND IN GLOVE, WASHINGTON MONUMENT
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