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VTNE Review1
Hematology Review
| Question | Answer |
|---|---|
| What color blood tube is needed for serum? | Red top or tiger top |
| What color blood tube is needed for plasma? | Purple top, blue top, gray top, green top |
| Name the 5 WBC's and which ones are granulocytes? | Netrophils, Eosinophils and Basophils are granulocytes and Lymphocytes and Monocytes are agranulocytes |
| The buffy coat in a spun hematocrit tube consists of? | WBC's and platelets |
| Icteric serum is what color? | Yellow |
| Plasma is composed of what % water and what % dissolved constituents? | 90 water and 10 dissolved constituents |
| True or False. Reticulocyte counts are included in a CBC? | False |
| What cells have cytoplasmic granules that stain blue to blue-black and gray-blue cytoplasm, often with small vacuoles? | Basophils |
| When reading a PCV, do you read the PCV at the top of the RBC layer or at the top of the buffy coat? | top of the RBC layer |
| Which instrument is used to obtain a total protein? | refractometer |
| Basophilic stippling may be seen in erythrocytes of patients with which pathologic condition? | Lead poisoning |
| What anticoagulant is the first choice for coagulation studies? | Sodium citrate |
| True or False - Red blood cell indices are helpful in the classification of certain types of anemia | True |
| The first phagocytes to respond to an infection are? | neutrophils |
| A correction for nucleated red blood cells is done to avoid a falsely? | elevated WBC count |
| Eosinophilia is commonly seen with? | Parasite infection |
| A platelet originates from a fragment of a? | megakaryocyte |
| True or False - Spherocytes are not a sign of RBC regeneration | True |
| What special stain would be used in assessing anemia? | New Methylene Blue |
| What is the most immature cell in the granulocytic series? | Myeloblast |
| The platelet's main role in coagulation is? | formation of the clot |
| Total proteins levels and PCV will do what in a dehydrated animal? | increase |
| On a CBC would a narrow buffy coat be expected in a patient with an infection? | No |
| The hematology analyzer is not functioning properly. A good mathematical method to estimate hemoglobin is? | 1/3 the PCV |
| RBC fragments resulting from shearing of the RBCs by intravascular trauma are known as? | Schistocytes |
| Heinz bodies may be a normal finding in up to 5% of the erythrocytes in what species? | Cats |
| Which intracellular parasite appears fairly large, paired and teardrop shaped when viewed microscopically | Babesia canis |
| Given a WBC count of 10,000 and a relative value of 65% segs, calculate the absolute value of segs. | 6,500 |
| An intracellar parasite, which appears as a structure called morulae, found in the cytoplasm of leukocytes is? | Ehrlichia |
| Heterophils in the avian species are the equivalent of the mammalian? | neutrophil |
| What species has multiple forms of reticulocytes? | cats |
| PCV/hematocrit is the percentage of whole blood composed of erythrocytes | True |
| EDTA is the anticoagulant of choice for hematology because it? | preserves blood cell morphology |
| A dohle body is identified with the diff-quick stain as? | a small bluish-gray inclusion in a neutrophil cytoplasm |
| a neutrophil in which the cytoplasm is more basophilic than normal and contains vacuoles is also knows as a? | toxic neutrophil |
| What cell becomes a macrophage once it enters the tissues? | monocytes |
| What is the term used to describe the situation in which many of the erythrocytes stain varing shades of lavender? | polychromasia |
| if you count 40 reticulocytes per 1,000 erythrocytes, what is the observed reticulocyte count? | 4% |
| True or False - removing the needle from the syringe to place blood in a collection tube will cause hemolysis. | False |
| What color tube would you use for a CBC? | Purple top (EDTA) - produces plasma |
| What color tube would you use for a blood chemistry? | Marble Top (no anitcoagulant) - produces serum or a Red Top (no anticoaguylant) - produces serum |
| What color tube would you use for Lead testing? | Green Top (lithium Heparin) - produces plasma |
| What color tube would you use for coagulation studies | Blue Top (sodium citrate)- produces plasma |
| What color tube would you use for glucose testing? | Gray Top (sodium fluoride and/or potassium oxalate) - produces plasma |
| What species normally has eosiniphils with small, round, red-staining cytoplasmic granules? | Bovine |
| A canine erythrocyte that is smaller than normal, with no pale area in the center is a? | sphereocyte |
| What causes dark granules called dohle bodies in the cytopasm of canine neutrophils? | toxemia |
| What is normally the largest mature blood cell in peripheral blood of domestic species? | monocyte |
| Which leukocyte has a kidney-bean-shaped nucleus? | metamyelocyte |
| Certain oxidant drugs can denature hemoglobin and cause production of round structures in erythrocytes called? | heinz bodies |
| What nucleated erythrocyte is the first one you will see in peripheral blood if an animal has used all of its reserves of mature erythrocytes in the bone marrow? | metarubricyte |
| A normal leukocyte count with an increase in immature neutrophils that outnumber mature neutrophils is? | degenerative left shift |
| What sample is recommended for hemoglobin testing? (serum, plasma, whole blood?) | whole blood |
Created by:
RMara