After a Knife Wound to the Groin,a Man Develops a Large

question 1

Multiple Choice

After a knife wound to the groin,a man develops a large arteriovenous (AV) shunt between the iliac artery and iliac vein.Which of the following changes occur in his systemic circulation?

• A)Blood flow in the capillaries of the fingernail bed becomes pulsatile.
• B)The circulation time (antecubital vein to tongue)is decreased.
• C)The arterial pulse pressure (systolic minus diastolic pressure)is decreased.
• D)The greatest velocity of blood flow prevails in the vena cava.
• E)Pressure in the right atrium is greater than in the inferior vena cava.

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