Apheresis is the process by which platelets and other blood components are collected from a donor. The word “Apheresis” is derived from the Late Latin word “Aphaeresis” meaning “to take away.” This process is accomplished by using a machine called a cell separator. Most commonly, blood is drawn from the donor and platelets suspended in plasma are collected by the cell separator. The remaining components of the blood are returned to the donor by the automated instrument. Each apheresis donation procedure takes about one and one-half to two hours. Donors can watch movies or relax during the donation. It is also possible to collect red blood cells and plasma by apheresis methods. Similar to the collection of platelets, the desired blood component is collected, and the remaining components of the blood are returned to the donor.
Eric C. Santos, MD
Location and Office HoursCancer & Hematology Centers of Western Michigan
145 Michigan St NE
Grand Rapids, MI 49503
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- Blue Care Network of Michigan (BCN)
- Priority Health
- Saint Mary's Health Care
- Spectrum Health, Blodgett Campus
- Spectrum Health, Butterworth Campus
What is apheresis?
American Red Cross answered
When should I have my iron level checked?
There's some controversy to this. If the iron is so low that you are anemic, then it can absolutely cause fatigue, especially with exercise. The prevailing mainstream thought is that without anemia, low iron should have no effect. However, there are some in the sports medicine world who believe that low iron without anemia can affect endurance exercise tolerance, and there is some evidence to back this up, but it is not overwhelming.
Still, taking iron is low risk, and if you have noticed a decrease in performance it would be worthwhile to get your iron level checked, especially the ferritin level (the storage form of iron). If the ferritin is low, taking an over-the-counter iron supplement may help. Another nutrient, Vitamin D, is epidemically low in most of us and has been overlooked. This can also cause fatigue. So if you're feeling a little fatigued, and think it may be due to iron, it's best to get it checked early so that you can take care of it.
What is in human blood?
Discovery Health answered
Blood is a mixture of cells and plasma. The heart pumps blood through arteries, capillaries and veins providing oxygen and nutrients to the body's cells. Blood also carries away waste products.
An adult human body contains approximately five liters of blood. Blood makes up about 7 or 8 percent of a person's body weight. About 2.75 to 3 liters of blood is plasma. The remaining portion is cellular.
Plasma is the liquid portion of blood. The blood cells float in the plasma. Several other materials are dissolved in plasma including electrolytes, nutrients, vitamins, hormones, clotting factors, and proteins such as albumin and immunoglobulins. Plasma distributes these substances as it circulates throughout the body.
In the cellular portion of blood we find red blood cells, white blood cells and platelets. The red blood cells carry oxygen from the lungs T white blood cells help to fight infection. Platelets are used to clot blood. All blood cells are produced in the bone marrow. When we are children, most of our bodies bones produce blood. As we age fewer bones are producing blood until blood is only produced by the bones of the spine, breastbone, ribs, pelvis and parts of the upper arm and leg.
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