Reticulocyte Flashcards

1
Q

How many days does reticulocytes stay on BM

A

2-3 days

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2
Q

How many days does reticulocytes stay in the circulation

A

1 day

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3
Q

Cytoplasmic inclusion co precipitate with —–

A

Mitochondria and ferritin masses

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4
Q

What is the color to form visually seen on stain

A

DARK BLUE clusters with supravital stain

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5
Q

Ferritin

A

Iron store

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6
Q

Hair like fragments that appears web like

A

RETICS

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7
Q

What has no remnants

A

RBC

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8
Q

A dye that stains living cell and its inclusion

A

Supravital stain

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9
Q

What are the supravital stain

A

NEW METHYLENE BLUE
BRILLIANT CRESYL BLUE

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10
Q

Why do we perform retic ct

A

To measure the erythropoietic ability of the BM

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11
Q

Measure the erythropoietic ability of the BM

A

In cases of anemia
BM to respond for anemia

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12
Q

Ratio

A

1:1

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13
Q

NV FOR NEWBORNS

A

4-6%

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14
Q

Nv for adults

A

0.5-2.5 %

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15
Q

Supravital stains should be filtered

A

Daily or before use

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16
Q

Sample

A

Rbc mixed with edta
Capillary blood - for babies

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17
Q

Procedure used in reticulocyte ct

A

Dry preparation

18
Q

Temperature for incubation for retic ct

19
Q

How many mins should retics be incubated

A

10-15 mins

20
Q

Type of smear prepared

A

Wedge smear

21
Q

Objective used in viewing retics

A

100x objective

22
Q

Appearance of mature rbcs

A

Light to medium green without granules

23
Q

Appearance of reticulocyte

A

Light green with granules that stain deep blue

24
Q

Count the number of retics in ….

A

1000 red cells

25
One oil immersion showing both mature erythrocyte and reticulocyte
Routine light microscopy method
26
One oil immersion showing both red cells and reticulocyte
Miller disk method
27
Inserted in the eyepiece
Miller ocular disk
28
How many squares is counted on miller disk method
2 squares
29
Counted in A OR B squares in miller disk
A- for cting retics B- for RBCS
30
How many ct of rbcs are counted in susceptible fields
12 rbcs
31
Increased
- blood loss - crises ass w/ hemophilic anemia - subsequent for pernicious anemia
32
Hallmark of anemia
Increased retic count
33
Accuracy of counting
2 laboratorians are required to count the retics
34
Result should agree at what percent
20%
35
Poor drying (atmospheric moisture)
Refractile bodies
36
May resemble dark blue clusters
Precipitates
37
Howell jolly bodies
1-2 deep purple colored dense structure
38
Heinz bodies
Light blue- green, periphery of rbc
39
Pappenheimer bodies
Small iron clusters
40
Color of pappenheimer bodies
Prussian blue
41
Severe anemia
Proportion of dye to blood should be adjusted
42
Miller disk
Inverted L