What are the preparation of blood smears?
A thin smear being prepared. Place a small drop of blood on the pre-cleaned, labeled slide, near its frosted end. Bring another slide at a 30-45° angle up to the drop, allowing the drop to spread along the contact line of the 2 slides. Quickly push the upper (spreader) slide toward the unfrosted end of the lower slide.
What will be the best way in preparing blood smear indicate step by step procedure?
- Place clean glass slide on a flat surface. Add one small drop of blood to one end.
- Take another clean slide, and holding at an angle of about 45 deg, touch the blood with one end of the slide so the blood runs along the edge of the slide by capillary action.
- Make 2 smears, allow to air dry, and label clearly.
What is important when preparing blood smears?
It is important to know the artifacts and distinguish them from morphologic abnormalities. Inadequately prepared smears with streaks or lacking the feathered edge and monolayer of cells are not appropriate for evaluation of erythrocyte morphology and performing a differential count.
How do you prepare a blood smear for staining?
Make the thin smear starting about 1/3 from the nonfrosted end of the slide. Then, place another drop of blood at the clear end and use the edge of the smearing slide to spread the drop out to about a 1 cm circle. The thick smear will take longer to dry.
What are the two types of smear preparation?
Four different types of smear preparation methods (conventional method, blood film method, drop and rest method, and water-wash method) were carried out according to the standard reference as described below.
What are the characteristics of a well prepared blood smear?
A well made blood smear. The classic blood smear has a thumb print appearance. A well developed feathered edge is apparent. The dense body of the smear takes up most of the slide and there is a thin counting area which blends with the feathered edge and the dense body.
What are the three methods of preparing a blood smear?
Aim: The present study was conducted to find the agreement between the blood culture broth Gram stain finding of four different methods (conventional, water wash, blood film, and drop and rest) of smear preparation with the culture smear Gram stain result and also to compare the quantity of charcoal and resin particles …
What is smear study?
A blood smear is a blood test used to look for abnormalities in blood cells. The three main blood cells that the test focuses on are: red cells, which carry oxygen throughout your body. white cells, which help your body fight infections and other inflammatory diseases.
What are the three methods of preparing blood smear?
What are the characteristics of a good blood smear?
The blood smear must not be too thin or too thick and the tail of the smear must be smooth. The perfect quality smear is influ- enced by three factors: speed, angle and drop size. thinner the smear will be. The slower the slide is moved, the shorter and thicker the slide will be.
What is the advantage of a blood smear compared to a complete blood count?
The white blood cell count on a blood smear gives important information about the number of the different types of blood cells as well as other findings. When a particular type of white blood cells is increased, it can give important clues about underlying problems.
Why is blood smear done?
A blood smear is often used as a follow-up test to abnormal results on a complete blood count (CBC) to evaluate the different types of blood cells. It may be used to help diagnose and/or monitor numerous conditions that affect blood cell populations.
