إعـــــــلان

**ashraf shaq** · 29-09-2009, 08:28 PM

الاجابات الصحيحة

اجابات الأسئلة الجديدة ليوم السبت الموافق 26/9/2009 هم:

126- Which PT reagent you will choose to work with
A- A PT reagent with an ISI of 2.8
B- A PT reagent with an ISI of 1.8
C- A PT reagent with an ISI of 1.6
D- A PT reagent with an ISI of 1.2
E- A PT reagent with an ISI of 1.0

127- Thromboxane A2 is
A- Activator of platelet adhesion
B- Activator of thrombin
C- Antagonist to platelet
D- Activator of Platelet aggregation
E- Non of the above

128- PT and APTT detect severe deficiencies of the following factors EXCEPT
A- Factor XII
B- Factor IX
C- Factor X
D- Factor V
E- Factor XIII

129- The difference between PT and APTT reagents is
A- PT reagent contain tissue factor only
B- APTT reagent contain Phospholipids with no tissue factor
C- PT reagent contain phospholipids in addition to tissue factor
D- No difference between the two reagents.
E- Two of the above answers are correct

B and C both are correct

130- The largest blood cell seen in BM is:
A- Myeloblast
B- Megakaryocyte
C- Promyelocyte
D- Pronormoblast
E- Monocyte

وبالله التوفيق ..................... يلا يا شباب شاركو معنا...................

**ashraf shaq** · 29-09-2009, 08:39 PM

الأسئلة الجديدة لليوم هي :

131- Protein C deactivates
A- Factors VII and X
B- Factors V and VIII
C- Factors XII, XI, and II
D- Factors X and II
E- All factors except X and II

132- Unfractionated heparin therapy can be monitored by
A- PT test
B- Clot solubility test
C- TT
D- Anti activated factor X- AntiXa assay
E- aPTT

وموفقين ان شاء الله

**hematologist** · 29-09-2009, 09:03 PM

131- B

132- E

**عاشقة الورد** · 29-09-2009, 11:01 PM

131- B
132 - D

**m^rm^r** · 29-09-2009, 11:58 PM

B
E
------------------------

**samah ahmed** · 30-09-2009, 12:02 AM

131/B
132/E

**bhloool** · 30-09-2009, 01:08 PM

:embarassed::embarassed::embarassed::embarassed::e mbarassed::embarassed::embarassed:

**ashraf shaq** · 30-09-2009, 11:03 PM

الاجابات الصحيحة

اجابات الأسئلة الجديدة لليوم هي :

131- Protein C deactivates
A- Factors VII and X
B- Factors V and VIII
C- Factors XII, XI, and II
D- Factors X and II
E- All factors except X and II

132- Unfractionated heparin therapy can be monitored by
A- PT test
B- Clot solubility test
C- TT
D- Anti activated factor X- AntiXa assay
E- aPTT

وموفقين ان شاء الله

**ashraf shaq** · 30-09-2009, 11:11 PM

الأسئلة الجديدة لليوم هي:

133- ما الفرق بين PTT و APTT ?

134- هل اذا كان ال PT وال APTT طبيعيين نحط ببطنا بطيخة صيفي انو ما في مشكلة في عوامل التجلط؟

وموفقين ان شاء الله

**hematologist** · 01-10-2009, 12:02 AM

133-

There is difference between PTT and APTT, APTT is always have shorter times, since it is the activated partial thromboplastin time,Activated means that we have added an activator to factor XII like kaolin, ellagic acid, celite or silica

NOTE : The PTT and APTT test for the same functions . APTT is a sensitive version of PTT that is used to monitor heparin therapy .

134-

The PT and PTT is unaffected in the deficiencies of factors VIII and IX

**ashraf shaq** · 01-10-2009, 10:25 AM

يلا وين الأعضاء جاوبوا دورو الاجابة هياااااااااااااااااااااااااااااااا

**bhloool** · 01-10-2009, 04:17 PM

133-I agree with brather haematologist
the APTT reagent is modified by the addition of contact activator such as kaolin, silica, celite, or ellagic acid and those accelerate the activation of factor XII into XIIa
134-i'm not sure about this
please doc we need more informations on this

**M.A** · 01-10-2009, 05:18 PM

The prothrombin time (PT) measures the clotting time from the activation of factor VII, through the formation of fibrin clot
The activated partial thromboplastin time (PTT) measures the clotting time from the activation of factor XII, through the formation of fibrin clot
This measures the integrity of the intrinsic and common pathways of coagulation,
134- as above these tests can't be responsible for estimate all blood clotting factors

**ashraf shaq** · 02-10-2009, 06:06 PM

الاجابات الصحيحة

اجابات الأسئلة الجديدة لليوم هي:

133- ما الفرق بين PTT و APTT ?

The difference is that APTT contains a contact activator kaolin, celite, silica or ellagic acid is true. Because of this activator the APTT time is shorter than PTT. This acticvator activates factor XII.

134- هل اذا كان ال PT وال APTT طبيعيين نحط ببطنا بطيخة صيفي انو ما في مشكلة في عوامل التجلط؟

No, when PT and APTT are both normal in their times this does not exclude that there is still a problem in clotting factors since these tests only detects clotting factor deficiency when they are less than 30 or 40% of their activity, this is why you have to read the reagent insert to see the sensitivity of these reagents

**ashraf shaq** · 02-10-2009, 06:10 PM

الأسئلة الجديدة لليوم هي:

135- What is difference between platelet adhesion and platelet aggregation?

136- What is the role of thromboxane A2

137- What does PFA-100 machine do

My best regards

إعـــــــلان

كل يوم سؤالين اختار اجابة MCQ في أمراض الدم

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