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?
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In the antecubital fossa, at the bend of the elbow- Name the three main veins found in the antecubital area used for venipuncture.
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Median cubital, cephalic, and basilic veins- Why is the median cubital vein usually preferred over other arm veins?
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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?
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The basilic vein- Why is the basilic vein considered the last choice for venipuncture?
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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?
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Along the lateral (thumb) side of the forearm and antecubital area- What is the standard order of vein preference for venipuncture?
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Median cubital, then cephalic, then basilic- What is the innermost layer of a vein wall called?
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Tunica intima- What is the middle layer of a vein wall called?
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Tunica media- What is the outermost layer of a vein wall called?
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Tunica adventitia- What internal structures in veins prevent the backflow of blood?
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Valves- How do veins differ from arteries in terms of pulse?
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Veins have no palpable pulse; arteries do- How do vein walls compare to artery walls in thickness?
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Vein walls are thinner than artery walls- What tells you that you may have accidentally located an artery instead of a vein?
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A strong pulsating feel under the finger- What is the main purpose of applying a tourniquet before venipuncture?
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To restrict venous return so veins distend and become easier to see and feel
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