1431_Vessel Mapping_BD_102921 ready for snippets

The sonographer should move the probe more proximal to obtain the measurement of the ulnar artery and ulnar veins, then verify triphasic flow and assess for the presence of calcium (Figure 14).

Figure 14 – Measure the Ulnar Artery, Assess Flow, and Assess for Calcium

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In order to continue endoAVF (dual catheter system) screening at this time, the patient must have a radial artery and at least one radial vein that are each ≥2 mm in diameter or the ulnar artery and at least one ulnar vein that are each ≥2 mm in diameter. 14 Document findings including diameter and doppler waveform (Table 5) and proceed to screen access options.

Table 5 – Radial and Ulnar EndoAVF Creation Site Measurements

Source: BD, Bard. WavelinQ™ 4F Vessel Mapping Sheet. BD-12525v2. https://wavelinq.bd.com/wordpress/wp-content/uploads/2020/03/BD-12525v2-WavelinQ-4F- Vessel-Mapping-Sheet.pdf. Accessed October 10, 2021.