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.
The best way to prevent it is to eat plenty of whole grains and legumes, along with good sources of vitamin C at meals (citrus fruits, strawberries, peppers, broccoli, leafy greens, cauliflower, cabbage). Vitamin C dramatically improves iron absorption.