طَـبيب || الدفعـة 6
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قناة بيد أدمنز يسعون يكونون الأفضل بكُلشي ومن ضمن اشيائهم "قناة طبيب الدفعة 6” البوت: @Doctorbatch6_bot
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Pathological polycythemia occurs in dehydration ,Polycythemia also occurs in bone marrow
disease : e.g. polycythemia rubra vera ,
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Pathology causes of anemia like in severe bleeding, massive hemolysis of any cause, dietary
deficiency of nutrients or vitamins , e.g. iron deficiency anemia
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Oxyhemoglobin
Hb combined with O2
Carbaminohemoglobin
Hb combined with CO2.
Carboxyhemoglobin
Hb combined with CO.
Methemoglobin
A type of Hb in which the iron in the heme group is in ferric (fe+3) state,
Sulfhemoglobin
Hb containing sulfar and is unable to transport O2.
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HbA(2α2β) main in adult
HbA2 (2α2δ) low in adult
Hb F(2α2γ) main in fetus
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The major (96%) type of hemoglobin present in adults is called HbA and it
has 2 alpha globin chains & 2 gamma globin chains(
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The major (96%) type of hemoglobin present in adults is called ………
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Principle of the RBC count test
• Whole blood is diluted 1:200 in hayem’s solution
Principle of WBC count
• Whole blood is diluted 1:20 in weak acetic acid
solution
Principle of platlets count
The blood sample diluted 100 times with platelet diluting fluid (ammonium oxalate)
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Physiological causes Decrease RBC count
1. High barometric pressures
2. Pregnancy
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Physiological causes that Increase RBC count (polycythemia) :
High Altitude
Muscular exercise
Emotional Condition like anxiety
Increase in environmental temperature
Smoking
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Normal value of hematocite:
In male 42 to 50 %
In female 36 to 38 %
