by MyH Editorial Team | Nov 1, 2023 | Lab Protocols, White Blood Cells
Procedure At A Glance The periodic acid Schiff stain is a histochemical method that turns cellular carbohydrates (glycogen, mucins, glycoproteins) magenta-pink, making them visible under the microscope. In hematology, the periodic acid Schiff stain helps distinguish...
by MyH Editorial Team | Nov 1, 2023 | Hemostasis Disorders, Lab Protocols
Key Takeaways The activated partial thromboplastin time (aPTT) is a blood test that measures how long plasma takes to clot through the intrinsic and common pathways of the coagulation cascade [1]. The aPTT is the standard screening test for hemophilia A and B, and it...
by MyH Editorial Team | Oct 31, 2023 | Hemostasis Disorders, Lab Protocols
Key Takeaways The PT/INR is a screening blood test that measures how long plasma takes to clot via the extrinsic and common pathways of the coagulation cascade, reflecting the activity of Factors I, II, V, VII, and X [7]. PT/INR is the standard test for monitoring...
by MyH Editorial Team | Oct 30, 2023 | Lab Protocols, Red Blood Cells
Procedure-at-a-Glance The ESR is a simple, inexpensive blood test that measures how quickly red blood cells settle in a vertical tube over one hour, expressed in millimeters per hour (mm/hr). It is a non-specific marker of inflammation [6]. Collect venous blood using...
by MyH Editorial Team | Oct 30, 2023 | Lab Protocols, Red Blood Cells
Procedure-at-a-Glance The BCB (Brilliant Cresyl Blue) stain is a supravital dye, meaning it stains living, unfixed red blood cells. It binds residual ribosomal RNA in reticulocytes and precipitates unstable hemoglobins like HbH [1,2]. Mix equal parts EDTA blood and...
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