Percutaneous electrical nerve stimulation (PENS) is used to relieve pain and is essentially. the same as transcutaneous electrical nerve stimulation (TENS) except that, unlike TENS, the stimulating electrodes are surgically implanted around, or immediately adjacent to, the. nerve serving the painful area.
This prevents donation. Eating. foods high in iron, such as tuna, lean red meat, eggs, nuts, beans, dark green vegetables, raisins or taking a. multi-vitamin with iron may help bring the iron level to. the acceptable range for plasma donation. down those fluids.
Limit or do not drink alcohol. If you drink alcohol, you absorb more iron from food and raise your risk of liver damage (cirrhosis). Do not take extra vitamin C supplements (more than 200 mg a day). Extra vitamin C can increase the amount of iron you absorb from food.