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Hematology CH. 18
| Question | Answer |
|---|---|
| Anemia | A condition in which there is a decrease in the erythrocytes or amount of hemoglobin in the blood. |
| Anticoagulant | A substance that inhibits blood clotting |
| Hematology | The study of blood and blood-forming tissues |
| Hemoglobin | The protein -and iron - containing pigment of erythrocytes that transports oxygen in the body |
| Hemolysis | The breakdown of erythrocytes(red blood cells ) with the release of hemoglobin in the plasma |
| Leukocytosis | An abnormal increase in the number of white blood cells . |
| Leukopenia | an abnormal decrease in the number of white blood cells |
| Oxyhemoglobin | hemoglobin that has combined with oxygen |
| Phagocytosis | the engulfing and destruction of foreign particles, such as bacteria , by special cells called phagocytes |
| Polycythemia | a disorder in which there is an increase in red blood cell mass . |
| CLIA- | waived automated blood analyzers designed for use in the medical office |
| Complete Blood count (CBC) | The most frequently performed hematologic lab test |
| 7 test included in a CBC | White Blood cell Count WBC Red blood cell count RBC Hemoglobin Hgb Hematocrit Hct Differential white blood (Diff ) Red blood cell indices |
| What are the two parts of blood | liquid and solid |
| The liquid portion of blood | plasma |
| Plasma | the clear yellowish fluid that makes up 55% of the blood volume |
| Transports nutrients to the tissues of the body to nourish and sustain them and picks up waste from the tissues . | Plasma |
| transports antibodies ,enzymes and hormone to help regulate normal body function. | plasma |
| Solid portion of the blood | erythrocytes, leukocytes, and thrombocytes accounts for 45% of the total blood volume |
| How much blood does the average adult body contain | 10 to 12 pints or {5 to 6 liters } |
| Erythrocytes | red blood cells that are formed in the red bone marrow of the ribs , sternum ,skull and pelvic bone and the ends of the long bones of limbs . |
| A major portion of the erythrocytes consist of this .. | hemoglobin |
| hemoglobin | a complex compound that transports oxygen and is responsible for the red of the erythrocyte |
| Amount of hemoglobin for a women | 12 to 16 g/dl |
| Amount of hemoglobin in the blood for a male | 14to 18g/dl |
| found in hemoglobin an iron containing pigment | heme |
| hemoglobin molecules consist of | a globin, protein and iron containing pigment called heme . |
| White blood cell count normal ref. range WBC count | 4500-1100 |
| Abbreviation for White blood cell | WBC |
| Abb. for Red blood cell | RBC |
| Abb for Hemoglobin | Hbg |
| Hematocrit | assists in diagnosis of anemia |
| Normal range for female hematocrit levels | 37%-47% |
| ABB for Hematocrit | Hct |
| Abb Differential White blood cell count | diff |
| what color tube for CBC | Lavender tube ( contains EDTA) |
| ABB Serum Separator Tube -AKA Tiger Tube | SST |
| Prothrombin time /INR | to screen for coagulation disorders and regulate treatment of patients taking oral anticoagulant |
| Abb Prothrombin time /INR | PT /INR |
| Patient abbreviation | Pt |
| centrifuging | the solid elements are separated from the plasma by an anti coagulated blood specimen |
| heavy red blood cells | these cells become packed and settle at the bottom of tube after centrifuging |
| Top of tube | clear straw colored plasma |
| buffy coat | (yellow gray layer) middle of tube and contains the platelets and white blood cells |
| purpose of the hematocrit | to measure the percentage volume of packed red blood cells in whole blood |
| hemoglobin analyzer | uses only a finger stick |
| platelets | aka thrombocytes , are small, clear, and disc shaped |
| platelets | participate in blood clotting mechanisms |
| how are leukocytes transported (aka known as white blood cells ) | transported by the circulatory system and do their work in the tissue |
| main function of leukocytes | to defend the body against infection by destroying pathogens and removing them from the body |
| Carbon Dioxide | picked up by the blood and transports it to the lungs to be expelled |
| arterial blood | bright red in color ,resulting from oxygen |
| venous blood | dark red blood due to its low oxygen content |
| 120 | average life span of a red blood cell |
| platelet count | assist in evaluation of bleeding disorders that occur with anti coagulant therapy, |
| erythrocyte sedimentary rate | test for connective tissue diseases, malignancy and infectious diseases |
| MCV | index most often used to assist in diagnoses of particular type of anemia . |
| RBC indices | measurements that provide physician with information about size and hemoglobin content of Pt RBC |
| differential cell count | identify and count the five types of wbc in a representative blood sample . |
| there are this many types of wbc (leukocytes) | five |
| procedure for a manual diff cell count | must prepare 2 blood smears ,fresh whole blood is preferred |
| two categories of leukocytes | granular and nongranular |
Created by:
cmattox30
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