Venous anatomy, vein selection, and site preparation concepts for venipuncture.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- Where is the median cubital vein located?
- In the antecubital fossa, at the bend of the elbow
- Name the three main veins found in the antecubital area used for venipuncture.
- Median cubital, cephalic, and basilic veins
- Why is the median cubital vein usually preferred over other arm veins?
- It is the largest, is well anchored, and is least likely to roll
- Which antecubital vein lies closest to the brachial artery and median nerve?
- The basilic vein
- Why is the basilic vein considered the last choice for venipuncture?
- Because it lies close to the brachial artery and median nerve, raising the risk of injury
- Where is the cephalic vein located in the arm?
- Along the lateral (thumb) side of the forearm and antecubital area
- What is the standard order of vein preference for venipuncture?
- Median cubital, then cephalic, then basilic
- What is the innermost layer of a vein wall called?
- Tunica intima
- What is the middle layer of a vein wall called?
- Tunica media
- What is the outermost layer of a vein wall called?
- Tunica adventitia
- What internal structures in veins prevent the backflow of blood?
- Valves
- How do veins differ from arteries in terms of pulse?
- Veins have no palpable pulse; arteries do
- How do vein walls compare to artery walls in thickness?
- Vein walls are thinner than artery walls
- What tells you that you may have accidentally located an artery instead of a vein?
- A strong pulsating feel under the finger
- What is the main purpose of applying a tourniquet before venipuncture?
- To restrict venous return so veins distend and become easier to see and feel