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SCC hem. wk1
Question | Answer |
---|---|
What is the function of RBCs? | The function of RBCs is to carry oxygen to all parts of the body. |
The scientific name for white blood cells. | Leukocytes |
The substance found within the RBCs whose function is to provide oxygen to all parts of the body. | Hemoglobin (Hgb/Hb) |
What is the name of the most common anticoagulant used in the Hematology department? | EDTA |
Also known as the "packed cell volume". | Hematocrit (Hct) |
In what tissue of the body does the majority of hematopoiesis take place? | Bone marrow |
What are absolute WBC counts? | The measurement of the actual number of each type of WBC found in the body. |
From what tissue of the body are the formed elements derived (produced)? | From what tissue of the body are the formed elements derived (produced)? |
The term used to describe diseases that involve low blood volume or low oxygen levels. | Anemias |
What are the names of the five types of different WBCs? | Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils |
Ratio used to determine the relative numbers of RBCs and WBCs developing in the bone marrow. | M:E Ratio (Myeloid: Erythroid Ratio) |
What term is used to describe the measurement of average hemoglobin concentration of RBCs? | MCHC (mean cell hemoglobin concentration) |
What is the name of the most common stain used in the Hematology department? | Wright's or Wright's-Giemsa stain |
At what magnification of the microscope are differentials counted? | 100X or oil immersion magnification |
The scientific name for platelets. | Thrombocytes |
What are the three main classes of formed elements? | Erythrocytes (RBCs) Leukocytes (WBCs) Thrombocytes (Platelets) |
What is the function of platelets? | Platelets are involved in helping the blood to clot |
What type of blood specimen is required to perform testing in the Hematology department? | well mixed, whole blood |
What equation is used to calculate the MCHC? | Hgb x 100/Hct |
What is the term used to describe a substance that keeps blood from clotting? | anticoagulant |
What is a differential? | Slide of blood used to evaluate the formed elements of the blood. |
What equation is used to calculate the MCH? | Hgb x 10/RBC |
Term used to define the volume of RBCs in a specimen tube after it has been spun down in a centrifuge. | Hematocrit (Hct) |
What equation is used to calculate the MCV? | Hct x 10/RBC |
What term is used to describe the measurement of the average weight of hemoglobin content of RBCs? | MCH (Mean cell hemoglobin) |
What term is used to describe the measurement of the average volume of RBCs? | MCV (Mean cell volume) |
What "rule of three" equation double checks the relationship of the RBC count and Hgb measurements? | RBC x 3 = Hgb |
How many, and what formed element of the blood are counted on a differential? | 100 WBCs |
What is the function of WBCs? | The function of the WBCs is to help the immune system fight off infections |
What is the term used to describe the "proliferation", "differentiation", and "maturation" of the formed elements of the blood? | Hematopoiesis |
What is a reticulocyte? | A young RBC that contains remnant cytoplasmic RNA |
Term used to define the blood's ability to form clots when needed, and dissolve clots to prevent blood vessel occlusion. | Hemostasis |
What is an RDW (red cell distribution width)? | Term used to describe the measurement of the degree of RBC size. |
The scientific name for red blood cells | Erythrocytes |
Why is the reticulocyte count important? | The reticulocyte count assesses how well the bone marrow produces RBCs. |
What "rule of three" equation double checks the relationship between the Hgb and Hct measurements? | Hgb x 3 = Hct |
In Hematology, we measure what three aspects of the formed elements of the blood and their products? | Concentration, structure, and function |
Term used to define the study of blood. | Hematology |