Chapter 3: Blood Specimens Flashcards
What are the largest volume of specimes that come to the laboratory for testing?
Venous blood specimens collected using a venipuncture method to draw blood from a vein.
Where is capillary blood found?
Under the surface of the skin.
Finger and heel sticks are examples of?
Capillary blood collection.
Capillary blood from fingers sticks is typically used in testing methods like?
Glucose meters that need only a few drops of blood.
What is the most common way to draw newborns’s blood for use in screening tests?
Heel sticks.
Arterial blood in adults is the usually collected from the the arteries in?
The wrist using a needle and syringe.
Why a needle and a syringe is used to collect arterial blood?
Because arteries are not visible from the surface of the skin.
Arterial samples are usually obtain to?
Test the blood’s oxygen and carbon dioxide levels (that help to determine lung function).
