Unit 48 Obtain venous blood samples
Q.1 Describe current legislation, national guidelines, local policies, protocols and good practice guidelines which relate to obtaining venous blood samples
Aseptic non touch technique should always be followed, Affective hand washing should be followed below is a diagram.
Consent should always be given before procedure.
Always use disposable tourniquet.
Sharps should always be disposed of in a sharps box.
Gloves and aprons should be worn at all times.
Code of conduct should always be followed making sure the area of work place is always safe and clean for use.
Q.2 Describe the structure of venous blood vessels
Several capillaries join together to form veins blood is carried through the body via blood vessels. Venous reserve volume of blood contained within systemic veins in the integument, Bone marrow, and liver that can be returned to their heart for circulation if needed.
Q.3 Explain blood clotting processes and the factors that influence blood clotting
Haemostasis is the body’s way of stopping injured blood vessels from bleeding. Haemostasis includes clotting of blood. When blood clotting is poor even a slight injury to a blood vessel may lead to severe blood loss. Haemostasis involves three major procedures
. Narrowing (construction) of blood vessels
.Activity of cell like blood particles that help in blood clotting.
.Activity of proteins found in blood that work with platelets to help blood clot (clotting factors) some of the contribution factors of blood clotting, Includes cigarette smoking, Advanced age, Lack of physical activity, Obesity, Heart failure, Medical conditions like cancer.
Q.4 Describe the position of venous blood vessels in relation to arteries, nerves and other structures
Artery/arteries are one of several types of blood vessels that transport blood around the body. Other blood vessels include arterioles, Capillaries, venules and veins. The structure of an