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21 Cards in this Set
- Front
- Back
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Antecubital Fossa
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The portion of the arm that is in front of the bend of the elbow. The most prominent veins for venipuncture are located in this area.
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Anticoagulant
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Chemical substance that prevents the blood from clotting.
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Basilic Vein
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The vein on the little finger side of the arm running the length of the arm.
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Buffy Coat
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Layer of cells in an anticoagulant tube of blood that is positioned between the RBC's and plasma layers. Consists of WBC's and platelets.
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Centrifuge
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Instrument that spins and separates blood into layers depending on the weight of the layer. The heavier elements are pushed to the bottom due to centrifugal force.
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Cephalic Vein
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The vein on the thumb side of the arm running the length of the arm. Second choice for venipuncture.
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Diastolic
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Blood pressure when the heart is at rest. Blood refills the ventricles.
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Endocarditis
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Infection of the inner membrane of the heart.
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Erythrocytes
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Formed blood element; also known as red blood cells.
-transports 02 and CO2 with hemoglobin -formed in bone marrow -size 6-7 micrometers (no nucleus) -life span 100-120 days -removed in bone marrow, liver, and spleen |
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Leukocytes
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Formed blood element; also known as white blood cells.
-body defense -formed in bone marrow and lymphatic tissue -size 9-16 micrometers; eosinophils, neutrophils, and basophils (granular) monocytes and lymphocytes (agranular) -life span 24 hours-years -removed in bone marrow, liver, and spleen |
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Median Cubital Vein
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The vein in the antecubital Fossa area of the arm that bridges the cephalic and basilic veins. Easiest to palpate and used the majority of the time in venipuncture.
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Occluded
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Blocked, preventing a normal flow of blood.
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Plasma
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Fluid portion of the blood when no clotting has taken place. Contains fibrinogen.
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Pulmonary System
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System circulating blood through the lungs.
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Serum
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Fluid portion of the blood after clotting has taken place.
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Systemic System
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System circulating blood throughout the body with the exception of the lungs.
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Systolic
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Blood pressure when the heart is fully contracted.
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Thrombocytes
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Formed blood element; also known as platelets.
-stops bleeding -formed in bone marrow from megakaryocytes -size 1-4 micrometers -life span 9-12 days -removed in spleen |
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Blood Draw Calculations
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-150lb adult = 5L total blood
-2.2lb infant= .100L total blood -2.5% blood max per draw -5% blood max per 30 days -blood contains 45% formed elements and 55% plasma |
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Arteries vs. Veins
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Arteries
-carry oxygenated blood from the heart -Bright red color -Elastic walls expand with blood surge -No valves -smooth muscle in tunica media for dilation and constriction -can feel a pulse Veins -carry deoxygenated blood to the heart -dark red color -less elastic walls -valves -no pulse |
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Complete Blood Count (CBC) Components
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WBC's (differential), RBC's, Platelets, Hemoglobin, and Hematocrit
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