Podcast
Questions and Answers
What is the purpose of the central partition in a double-lumen catheter?
What is the purpose of the central partition in a double-lumen catheter?
- To separate the blood withdrawal and return sides (correct)
- To facilitate the withdrawal of blood only
- To ensure equal pressure on both sides
- To allow for easier insertion into the vein
Which vein is typically NOT used for inserting a double-lumen catheter?
Which vein is typically NOT used for inserting a double-lumen catheter?
- Radial vein (correct)
- Subclavian vein
- Femoral vein
- Jugular vein
What is required before a fistula can be used for dialysis?
What is required before a fistula can be used for dialysis?
- It needs to mature for about a month (correct)
- It must be placed in the dominant arm
- It should be regularly flushed with saline
- It requires daily monitoring
Why should venipuncture and blood pressure measurements be avoided in the arm with the fistula?
Why should venipuncture and blood pressure measurements be avoided in the arm with the fistula?
What indicates that an arteriovenous fistula is functioning properly?
What indicates that an arteriovenous fistula is functioning properly?
Study Notes
Acute Vascular Access
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Double-lumen catheters are inserted into the subclavian, jugular, or femoral vein for temporary access to the bloodstream for hemodialysis or CRRT.
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The catheter has a central partition that divides the blood withdrawal side from the return side, preventing the withdrawal of dialyzed blood.
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Blood is extracted through small openings in the catheter’s proximal portion and returned through an opening in the distal end.
Long-term Vascular Access
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Arteriovenous (AV) fistula is created in the nondominant arm for long-term access.
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It involves surgically connecting an artery and vein, typically the radial artery and cephalic vein.
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Fistula maturation takes about a month before it can be used for dialysis.
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A functional AV fistula has a palpable pulsation and a bruit (a swooshing sound) when auscultated.
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The arm with the fistula should be avoided for venipuncture and blood pressure measurement.
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Description
This quiz covers essential concepts of acute and long-term vascular access for hemodialysis. Learn about the usage of double-lumen catheters and arteriovenous fistulas, including their placement and functionality. Test your knowledge about the procedures and care involved in managing vascular access points.
