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What must a lab tech remove before entering a clean area?
Lab coat, gloves (PPE)
What position should the bevel of the needle for venipuncture?
Bevel UP
This cell is a large phagocytic white blood cell with a simple oval nucleus and blue, grayish cytoplasm.
Monocyte
What blood tube MUST be filled to the appropriate line?
Blue top - Sodium Citrate
Giant platelets
What does PASS stand for?
Pull Aim Squeeze Sweep
For Hemacytometer counts, what pattern do you use?
Serpentine pattern
What type of hemacytometer is used for cell counts?
Neubauer
Macrophages
What causes Pernicious Anemia?
Malabsorption of Vitamin B12
Veins most commonly used for venipuncture?
Median cubital & Cephalic
What objective is used for highest magnification?
100X or Oil immersion
This cell is elevated in parasitic infections and known for its bright orange/red granules.
Eosinophil
May-Hegglin Anomaly is characterized by?
Dohle-like inclusion bodies
Isotonic saline has what % of NaCl?
0.85%
How do you calculate the volume of a small square on hemacytometer?
0.2 x 0.2 x .1
What is the iris diaphragm used for in a microscope?
Regulate the light reaching the object
How many squares are counted for platelet counts on hemacytometer?
1 Large center square
Where do thrombocytes originate from?
Megakaryocytes cytoplasm
Normal Reference Range for WBC
4.0 -11.0 x 109 /L
What is the total volume of all nine squares on hemacytometer?
0.9 mm3
How many squares are counted for manual WBC count on hemacytometer?
All 9 large squares
How many squares are counted for RBC count on hemacytometer?
5 small squares
A positive TRAP stain would indicate what???
Hairy Cell Leukemia
Myeloid:Erythroid cell ratio in the bone marrow should be?
3:1