Sorry I did not have a picc line but can totally agree with how the ultrasound heart test hurt! I could not believe how hard they pressed. I had a left side mastectomy two weeks prior to the test and my surgery area was still very tender. 6 months later I can still vividly remember the 'discomfort'!
Still, if they are going to have trouble finding veins for Chemo, it will be better to have only one time of pain rather than to dread every Chemo because of the cannula. I used to drink lots of water for the 2 days prior to chemo and had 'good' veins, but they still had difficulty 5 out of 6 chemos with getting the cannula in!
Hope it goes well. Take care. Deanne xxx