TEST FOR PRIMARY HEMOSTASIS Flashcards

(33 cards)

1
Q

Platelet counts

A

important in helping diagnose bleeding dischets Platelet function primarily in hemostasis maintaining capillary integrity

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2
Q

normal platelet range

A

15000-450000 uL or 150-450x103 mm3

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3
Q

size of platelet

A

1-4 um

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4
Q

platelet has no nucleus

A

true

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5
Q

what is the cytoplasm of platelet

A

very granular , light blue to purple

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6
Q

chromomere

A

granular and located Centrally

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7
Q

. Hyalomere

A

Surrounds the chromere, non-granalar and clear to light blue

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8
Q

Increased platelet count

A

Thrombocytosis
- occurs in infection
-commonly found in myofilbritative disorder
-removal of spleen

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9
Q

myofilbritative disorder

A

Myeloproliferative neoplasms or disorders are a group of rare diseases that affect the production of blood cells in the bone marrow.

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10
Q

thrombocytosis occurs in

A

Polycythemia vera
Idiopathic thrombocythemia *
Chronic myelogenous leukemia
after splenectomy

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11
Q

thrombocytopenia

A

decrease

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12
Q

thrombycopenic purpura
aplastic anemia
Gauchers disease,
Remicious anemia
Following chemotherapy and radiation therapy

A

thrombocytopenia

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13
Q

platelet counting. how many grams of sodium citrate>

A

3.8

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14
Q

platelet counting. how many grams of formaldehyde>

A

0.2

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15
Q

platelet counting. how many grams of briliant cresyll blue?

A

0.1

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16
Q

platelet counting dilution

17
Q

hemocytometer load

A

settle for 15 mins

18
Q

dilute whole blood by what

A

1% ammonium oxalate or rees ecker fluid

19
Q

platelet estimate

A

examine platelets on area where rbs barely touch. count platelets in 10 oil immersion. get the average the multiply by 20000. report result by mm3

20
Q

bleeding time- m

A

measures ability to platelet to arrest bleeding
asses plt number and function

21
Q

what are the two test in bleeding time

A

method of iv and method of duke

22
Q

presure of method of ivy

23
Q

site of method of duke

24
Q

normal value of method of duke

25
puncture site of metos of ivy
5 cm below the anticubtal crease
26
blot time
every 30 sec
27
normal value of method of ivy
2.5 - 7 min
28
bleeding time prolonged results are cause by
bet ni von si tia bleeding willie brand diseasse von williberand disease thrombocytioenia inherited platelet dysfution aspirin
29
caopillary fragility test pressure
80 mmhg
30
caopillary fragility time
5 min but rest for 15 mins
31
capilalry fragility test positive
more than 20 petechiae
32
capillary fragility tesst cause
tv thrombochytopenia vascular disorder
33
clot retraction time
obtain 2 ml lbloodby venipuncture inspect clot 1,2,4 and 24 hours observe for quality, retraction and lysis remaining 40-60 percent serum and red blood cell "fall out from clot" - a visual examintiaon of clot is made. usualyy the clot retracs annd expresse serum wihting 2 hours