| A | B |
|---|
| burns, scars, tattoos | veins are difficult to palpate or penetrate |
| tattooed areas | impaired circulation, dyes that interfere with testing |
| sclerosed veins | hardened |
| thronbosed | clotted |
| scarred veins | caused by numerous venipunctures, chronic illness, illegal IV drug use |
| edema | swelling due to accumulation of fluid in tissues |
| swelling | can make veins hard to locate and tissue is fragile |
| hematoma | blood swelling/growth during or following veinpuncture |
| mastectomy | never draw on same side as procedure |
| lymphostasis | obstruction or stoppage of normal lymph flow |
| obesity | veins can be deep and hard to find |
