Arterial and Venous Doppler (Single Upper limb)

You should get an arterial and venous Doppler of one arm if you have arm swelling, pain, heaviness, coldness, numbness, color changes, or weak pulse in that arm, especially after an IV line, catheter, pacemaker, or injury. It is also recommended before or after AV fistula creation for dialysis. Sudden painful swelling needs urgent testing.

No special preparation or fasting is required for an arterial and venous Doppler of one arm. Wear a sleeveless or loose top for easy access to your arm, and remove watches, bangles, and rings. Avoid smoking for at least 2 hours beforehand, as it narrows blood vessels. Continue your regular medicines and bring previous reports.

No, fasting is not required for an arterial and venous Doppler of a single upper limb. You can eat and drink normally and take your regular medicines before the scan. Wear a sleeveless or loose top, remove any watches or bangles, and avoid smoking for at least 2 hours beforehand.