Guide. An iron test checks the amount of iron in the blood to see how well iron is metabolized in the body. Iron (Fe) is a mineral needed for hemoglobin, the protein in red blood cells that carries oxygen. Iron is also needed for energy, good muscle and organ function.
The following errors are the most common symptoms of faulty (or failing) computer memory modules: 1  Computer memory errors. 2  These include system computer memory errors, or blue screen system crashes that reference memory read/write, parity, interrupt, address, page faults, general protection faults or mismatch errors.
Causes of Computer-Related Headaches and How to Manage Them. Headaches and Migraines. It's hard to imagine life without a computer. Whether it's our constant need to check email, the hours we spend surfing the Internet, or a quest to master a video game, staring at a computer monitor has become a part of everyday life for many of us.