Obtain Venous Blood Samples

Learning outcomes

1 Understand legislation, policy and good practice related to obtaining venous blood samples

1.1 Describe current legislation, national guidelines, local policies, protocols and good practice guidelines which relate to obtaining venous blood samples

2 Understand the anatomy and physiology relating to obtaining venous blood samples

2.1 Describe the structure of venous blood vessels

2.2 Explain blood clotting processes and the factors that influence blood clotting

2.3 Describe the position of venous blood vessels in relation to arteries, nerves and other structures

3 Be able to prepare to obtain venous blood samples

3.1 Confirm the individual’s identity and obtain valid consent

3.2 Communicate with the individual in a manner which:

Provides relevant information

Provides support and reassurance

Addresses needs and concerns

Is respectful of personal beliefs and preferences

3.3 Select and prepare appropriate equipment for obtaining the venous blood sample

3.4 Select and prepare an appropriate site taking into account the individual's preferences

4 Be able to obtain venous blood samples

4.1 Apply health and safety measures relevant to the procedure and environment

4.2 Apply standard precautions for infection prevention and control

4.3 Use the selected blood collection equipment correctly, in a manner which will cause minimum discomfort to the individual

4.4 Use the agreed procedure to obtain the venous blood sample to include:

Utilisation of containers

Required volume of blood

Correct sequence when obtaining multiple samples

Application and use of tourniquets at appropriate stages

Stimulation of blood flow or selection of alternative site where necessary

Utilisation of anti-coagulant with sample when necessary

4.5 Respond to any indication of adverse reaction, complication or problem during the procedure

4.6 Explain the correct procedure to deal with an arterial puncture when it occurs

4.7 Terminate the blood collection procedure following guidelines and/or protocols to include:

Removal of blood collection equipment

Stopping blood flow

Stopping bleeding

Application of suitable dressing

Personal care advice to the individual

5 Be able to prepare venous blood samples for transportation

5.1 Label, package, transport and store blood samples correctly and use appropriate attached documentation ensuring:

Legibility of labelling and documentation

Temperature control of storage

Immediacy of transportation