Which finding for a client with an arteriovenous fistula (AV Fistula) should the practical nurse (PN) report to the healthcare provider?
A.
Descriptions of numbness and tingling in fingers distal to the AVF.
B.
A loud and consistent bruit is auscultated at the AVF site.
C.
Bruising at the AVF site is purple and green in color.
D.
Radial pulse distal to AVF is absent and ulnar pulse is present.
The correct answer and Explanation is :
The correct answer is:
D. Radial pulse distal to AVF is absent and ulnar pulse is present.
Explanation:
An arteriovenous fistula (AVF) is a surgically created connection between an artery and a vein, commonly used for dialysis access. It is crucial to monitor the AVF for proper function and potential complications. Here’s why option D is the most concerning finding:
- Radial Pulse Absent: The radial pulse being absent distal to the AVF indicates that blood flow through the radial artery is significantly compromised. This could signal a serious issue with the AVF or the artery, such as thrombosis or severe stenosis. Compromised arterial blood flow can lead to ischemia of the hand and fingers, a potentially severe complication requiring immediate medical attention.
- Ulnar Pulse Present: The presence of an ulnar pulse suggests that blood flow is redirected or compensating through the ulnar artery. While this may indicate some collateral circulation, it does not negate the urgency of the absent radial pulse. This finding highlights a potential imbalance or problem with arterial blood supply, which could have severe consequences if not addressed.
Other Options:
- A. Numbness and Tingling: This could be related to normal changes or irritation in the area around the AVF but is less immediately critical than absent radial pulse.
- B. Loud and Consistent Bruit: A bruit is expected with an AVF due to the turbulent blood flow. While it should be monitored, a consistent bruit alone does not indicate an immediate problem.
- C. Bruising: Bruising can be common around the AVF site due to repeated needle punctures. Unless it is severe or associated with other symptoms, it is generally less urgent compared to a compromised pulse.
In summary, the absence of a radial pulse distal to the AVF is a critical finding and suggests potential issues with blood flow that need prompt evaluation and intervention.