The Vascular System
Venipuncture Equipments
Evacuated Tubes
Troubleshooting Failed Venipuncture
Blood Specimen and Tube Additives
100
H and M Pattern Veins
What is the two basic patterns in which veins form the shape?
100
A plastic cylinder with a small opening for a needle at one end and a large opening for tubes at the other.
What is a tube holder?
100
Blood Cell Counting / CBC
What is the use of the lavender top tubes?
100
Hematoma
What is a swelling or mass of blood that escaped from a vein during or after the venipuncture?
100
arterial blood specimen
What is reserved for blood gas evaluation and certain emergency situations?
200
Lancet
What is use in capillary puncture?
200
Hypodermic Needle
What is the type of needle used for syringe system of venipuncture?
200
Yellow Top Tubes
What is the evacuated tube use for blood culture in Microbiology?
200
Lumen
What is the particular portion where a properly positioned needle is seated?
200
Sodium fluoride
What is the most common antiglycolytic agent that preserves glucose for up to 3 days?
300
Median Cubital Vein
What is the preferred vein for venipuncture in H pattern?
300
multisample needle, tube holder, evacuated tubes
What is the three basic components of the Evacuated Tube System?
300
gel separator and clot activator
What are the two additives found in red top tubes?
300
gently advance the needle
What will you do if the needle is not deep enough when having the venipuncture?
300
fibrinogen
What is the component that plasma contains but serum does not?
400
It is not well anchored and rolls easily, it increases the risk of puncturing nearby veins or artery.
Why is basilic vein the last vein choice for venipuncture?
400
inversely related
What is the relationship between the gauge and bore of a needle?
400
Sodium heparin/ Lithium heparin inhibits thrombin formation to prevent clotting
What is the function of the additive of the green top tubes?
400
if vacuum is too great for the vein, plunger is pulled too quickly, and tourniquet is too tight
What are reasons/ cases why vein collapses?
400
Squeezing the sites for capillary puncture
What is the scenario that can falsely elevated potassium levels of blood?
500
Normal systemic arterial blood is oxygen rich.
Why is normal systemic arterial blood colored bright red?
500
To restrict venous flow but not arterial flow.
Why is tourniquet fastened tight enough?
500
Tubes are stored improperly, opened, dropped, or advanced too far onto the needle before the draw.
How is vacuum be lost in the evacuated tubes?
500
short hissing sound and a spurt of blood in the tube
What are the signs that indicate that the tubes may have lost its vacuum?
500
it forms a physical barrier that prevents the cells from metabolizing substances in the serum or plasma
What is the function of thixotropic gel separators?