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

A

Room temp

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
Q

One oil immersion showing both mature erythrocyte and reticulocyte

A

Routine light microscopy method

26
Q

One oil immersion showing both red cells and reticulocyte

A

Miller disk method

27
Q

Inserted in the eyepiece

A

Miller ocular disk

28
Q

How many squares is counted on miller disk method

A

2 squares

29
Q

Counted in A OR B squares in miller disk

A

A- for cting retics
B- for RBCS

30
Q

How many ct of rbcs are counted in susceptible fields

A

12 rbcs

31
Q

Increased

A
  • blood loss
  • crises ass w/ hemophilic anemia
  • subsequent for pernicious anemia
32
Q

Hallmark of anemia

A

Increased retic count

33
Q

Accuracy of counting

A

2 laboratorians are required to count the retics

34
Q

Result should agree at what percent

A

20%

35
Q

Poor drying (atmospheric moisture)

A

Refractile bodies

36
Q

May resemble dark blue clusters

A

Precipitates

37
Q

Howell jolly bodies

A

1-2 deep purple colored dense structure

38
Q

Heinz bodies

A

Light blue- green, periphery of rbc

39
Q

Pappenheimer bodies

A

Small iron clusters

40
Q

Color of pappenheimer bodies

A

Prussian blue

41
Q

Severe anemia

A

Proportion of dye to blood should be adjusted

42
Q

Miller disk

A

Inverted L