Chapter 4 Vocab Flashcards
Routine Blood Collections
A procedure that involves puncturing the finger or heel with a lancet device to obtain a small quantity of blood for testing. Also referred to as skin puncture or a capillary collection.
Dermal Puncture
In front of the elbow (from ante, meaning before, and cubitum, meaning elbow)
Antecubital
Sharpened and slanted cut edge of a needle designed to ease in the process of puncturing tissue.
Bevel
Liquid portion of the blood in which blood cells are suspended.
Plasma
An additive in collection tubes used as an anticoagulant to keep blood specimens from clotting.
Ethylenediaminetetraacetic Acid (EDTA)
Straw-colored liquid portion of the blood visible after the specimen has been allowed to clot and after centrifugation.
Serum
Vein located near the middle of the antecubital area. First choice for a venipuncture collection.
Median Cubital Vein
Vein that runs along the lateral side of the antecubital region. The second choice for venipuncture and can result in slight pain for the patient due to the location.
Cephalic Vein
Vein that runs medially and is located in the upper arm and forearm. Last choice for venipuncture because of proximity to nerves and arteries.
Basilic Vein
Excessive accumulation of blood into an area of the body, usually caused by a tourniquet left on too long or a patient pumping their fist.
Hemoconcentration
Hollow core of the vein; best place for needle position during venipuncture.
Lumen
Destruction of red blood cells.
Hemolysis
Anemia caused by collecting too much blood from a patient by volume in a given amount of time.
iatrogenic Anemia
Portion of blood that is expressed as a percentage by volume and consists of packaged red blood cells.
Hematocrit
Stopping of blood flow.
Hemostasis
