Exam 8: Collection and Processing of Blood Samples

Only lavender-top tubes require inversion after collection to avoid clot formation.

A butterfly system may be preferred to a blood draw in this situation:

Laboratory tests that require plasma for testing may be obtained using any tube with anticoagulant added.

A mass of blood caused by damage to a blood vessel is called:

Match the most appropriate method of venipuncture with each situation. Some methods of venipuncture may be used more than once or not at all. -75-year-old male, excessive bruising in antecubital area from anticoagulant use and repeat blood draws, small hand veins

Heparin is present as an anticoagulant in which tube?

The ___________keep the blood in the heart and the veins from flowing backwards.Short Answer

A peripheral blood smear may be utilized in this way:

Edematous areas must be avoided when performing venipuncture.

When considering the veins of the antecubital area for a blood draw, the first vein of choice is the:

Sodium citrate is present as an anticoagulant in which tube?

Which of these terms usually describes an inappropriate blood specimen?

Which of these tubes should be drawn last when performing a blood draw using the evacuated tube system?

Which type of specimen may appear cloudy after centrifugation and is unacceptable for many chemistry testing procedures?

Veins have valves that help to move the blood through the system.

When blood enters the heart from the systemic circulation, which chamber does it enter first?

Which of these is a good practice when drawing blood from a child?

Tubes that contain thixotropic gel to separate plasma from cells are ____tubes.

When drawing blood from geriatric patients, it may be necessary to collect a smaller specimen volume than you would from a young adult.

Reference ranges for arterial, venous, and capillary samples are often different.Completion Complete each statement.