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MA125 Hematology
Review
Question | Answer |
---|---|
When performing venipuncture, at what point do you release the tourniquet? | when tube filled, before removing needle |
Describe what you do to stop the bleeding at the venipuncture site? | apply direct pressure |
When collecting only small amount of blood what are the preferred sites? | finger, heel |
Describe how you perform a finger stick? | alcohol site, puncture ring or middle finger, wipe away first drop of blood, apply drop of blood to test strip |
What kind of tests can be run in lavender top tubes? | hematology tests |
Where do blood cells form? | bone marrow and lymph tissue |
What are the functions of blood? | regulates temperature, carry oxygen, distributes hormones |
What are formed elements of blood? | Erythrocytes, Leukocytes and Thrombocytes (platelets) |
When drawing for CBC, what type of tube do you use? | lavender top, EDTA (anticoagulant additive) |
The test that measures the rate red cells separate from plasma is called? | Sedimentation rate |
What is the main function of hemoglobin? | to combine chemically with oxygen |
When hematocrit is decreased what is a likely disease? | anemia |
What is the normal range for hemoglobin in an adult female? | 12- 16 |
What is the normal range of hematocrit in a normal adult male? | 42 % - 52% |
When do you use heparinized capillary tubes, what test? | when performing microhematocrit |
What is another name for hematocrit? | packed cell volume |
What does plasma contains? | proteins, hormones, carbohydrates |
What is the normal result for Sed rate in an adult female? | 1-20 |
What is the function of red blood cells? | carry O2 to cells, transports O2 to tissues, take carbon dioxide to lungs |
What part of the blood is lipids and cholesterol? | stored in plasma |
What do you do when blood is not flowing into tube? | slight manipulation of needle is acceptable, remove vacutainer apparatus and repeat, second attempt is ok as long as patient agrees |
What is the normal value for leukocytes? | 4,000 - 11,000 cu/mm |
What is CLIA? | improves quality of lab test, regulations are based upon personnel, procedures, record keeping are divided into original, expanded tests |
WBC's are divided into what two groups? | granular and non-granular |
Which protein gives immunity ? | gamma globulin |
What is a cholesterol test, what is measured? | the amount of lipids in blood |
What are the three proteins in plasma? | gamma globulin, albumin and fibrinogen |
What type of WBC helps in antibody formation? | lymphocytes |
Which blood type is the universal donor? | O |
Which blood type is the universal recipient? | AB |
How long must ESR stand before you can read results? | 1 hour |
Gloves and PPE should only be used if the patient is ill | False |
The most important function of leukocytes is to destroy pathogens | True |
The puncture site should be determined only after careful inspection of both arms | True |
If the patient's veins are small and fragile you can still use straight needle method | False |
Capillary puncture is used to collect large amounts of blood | False |
Plasma is made up of 90 % water | True |
Tubes that contain the additive EDTA is used when collecting specimens for CBC and ESR tests | True |
When a specimen forms a clot the liquid portion is called hemoglobin. | False |
Hemoglobin | iron containing pigment in RBC, carries O2 |
Erythrocytes | contains hemoglobin |
Neutrophils | increased in leukemia |
Pernicious Anemia | low hematocrit reading |
Thrombocyte | platelet aids in clotting |
PTT | coagulation test |
Rh + | 85 % of population |
Rh - | 15 % of population |
Leukocytes | assist with body defense |
What is whole blood consists of? | cells and plasma |