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What is an arteriovenous (AV) shunt and how should you draw from a pt. with one?

User XiaoYao
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Final answer:

An arteriovenous (AV) shunt is a vessel that connects an arteriole to a venule, bypassing the capillaries. When drawing blood from a patient with an AV shunt, it is important to avoid puncturing the shunt.

Step-by-step explanation:

An arteriovenous (AV) shunt is a short vessel that connects an arteriole directly to a venule, bypassing the capillary beds. It allows blood to flow directly from the arterial to the venous circulation without passing through the capillaries.

When drawing blood from a patient with an AV shunt, it is important to avoid puncturing the shunt, as this can cause complications. The preferred method is to choose a different site for blood collection, such as the opposite arm, or to consult with a healthcare professional for guidance on the best approach.

User Juls
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