The resting metabolic state of the body early in the morning after fasting for a minimum of of 12 hours.
A swelling or mass of blood (often clotted) such as that caused by blood leaking from a blood vessel during or following venipuncture.
A decrease in the fluid content of the blood, with a subsequent increase in nonfilterable large molecule-or protein-based blood components such as red blood cells.
Damage or deconstruction of RBCs and release of hemoglobin into the fluid portion of a specimen, causing the serum color to range from pink (slight hemolysis) to red (gross hemolysis)
Also called icterus; a condition characterized by increased bilirubin (a product of the breakdown of red blood cells) in the blood, leading to the deposition of yellow bile pigment in the skin, mucous membranes, and sclerae (white of the eyes) giving the patient a yellow appearance.
Medical term for fainting, the loss of consciousness and postural tone that results from insufficient blood flow to the brain.
Circles with a common center; starting from the center and moving outward in ever-widening arcs.
A substance placed within a tube or collection container. Can be a liquid, powder, or spray-dried coating.
A substance that prevents glycolysis, the breakdown or metabolism of glucose by blood cells.
Substance or solution used to remove or kill microorganisms on surfaces and instruments.
Ethylenediaminetetraacetic acid, and anticoagulant that prevents coagulation by binding or chelating calcium; it is used for hematology studies because it preserves cell morphology and inhibits platelet clumping.
Type of tube used in blood collection that has a premeasured vacuum and is color-coded to denote the additive inside.
The end of the needle that attaches to the blood collection device; also the threaded end of a tube holder where the needle attaches.
order of draw
A special sequence in tube collection that is intended to minimize additive carryover or cross-contamination problems.
A special puncture resistant, leak proof, disposable container used to dispose of used needles, lancets, and other sharp objects
An anticoagulant that prevents clotting by binding calcium and is used for coagulation tests because it does the best job of preserving the coagulation factors.
An inert synthetic gel substance in some ETS tubes that forms a physical barrier between the cells and serum or plasma when the specimen is centrifuged.