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Hematology2 > Lab Platelet Count chap 14 > Flashcards

Lab Platelet Count chap 14 Flashcards

1
Q

Referred as thrombocytes

A

Platelets

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2
Q

Life span of platelets?

A

8-11 days

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3
Q

How many plates in the circulation and in spleel?

A

2/3 circulation 1/3 spleen

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4
Q

saan galing ng plts??

A

From the granules of magakaryocytes

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5
Q

Is the number of plts in 1 L or 1 microliter of whole blood?

A

Plt count

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6
Q

Nv of plts?

A

150-400 x 109

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7
Q

Thrombocytosis is found in

A

Polycythemia vera
Idiopathic thrombocytopenia
CML
After splenectomy

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8
Q

Thrombocytopenia is found?

A 
Thrombocytopenic purpura
Aplastic anemia 
Acute lukemia
Gaucher's disease
Pernicious anemia
Following chemotherapy
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9
Q

Preferred anticoagulant?

A

EDTA

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10
Q

What do u call when platelets adhere to neutrophils?

A

Platelets satellitism

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11
Q

Remedy of plt satellitism?

A

Repeat plt count using sodium citrate

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12
Q

What r the direct plt count estimation?

A

Reese-ecker
Guy-leakes
Brencher-Cronkite
Unopette

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13
Q

What r the indirect plt count?

A

Dameshek
Fonio’s
Olef’s

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14
Q

Purpose of sodium citrate in rees-ecker?

A

It prevents clumping

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15
Q

Stain used in rees ecker?

A

Brilliant cresyl blue

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16
Q

Preservative in Rees-ecker and Guy-leaks?

A

40% Formalin

17
Q

What prevents clumping in Guy-leakes?

A

Sodium oxalate

18
Q

Reference method for direct plt count

A

Brencher-Cronkite

19
Q

Dilition factor for direct plt count

A

1:200

20
Q

Diluent in unopette?

A

Ammonium oxalate

21
Q

NV of adult in unopette?

A

140-440x109/L

22
Q

Dilution in unopipette?

A

1:100

23
Q

How many mis needed to platelets settle?

A

15 mins

24
Q

Conversation SI TO conventional

A

Divide to conversion factor

25
Q

Conversion of conventional to SI

A

Times

26
Q

Diluent in rees-ecker

A

Dameshek

27
Q

Also known as wet method?

A

Dameshek

28
Q

Also known as dry method

A

Fonio’s

Hematology2 (2 decks)

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