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150-450 x 10^9/L
What is the normal value of platelets?
8-11 days
Life span of platelets
20-30%
Approximately how much platelets are sequestered in the spleen?
Peripheral zone
Area where glycoproteins are found (gp1b, gp2b3a)
Tonkantin Method
Which method uses Rees-Ecker as a diluent?
Brecker-Cronkite Method
It is the reference method for manual platelet count
1% ammonium oxalate
What is the diluting fluid used in the Brecker-Cronkite method?
Unopette method
What method uses tripotassium EDTA and ammonium oxalate?
Hemolysis of red cells by hypotonicity and complete block of platelet activity by chelating Mg and Ca with EDTA and ammonium oxalate
What is the principle of the Unopette method
Thrombocytopenia with absent radii (TAR)
Absent or decreased and abnormal bone-marrow megakaryocytes, congenital deformities of the arm