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.
How Viruses Can Damage Your Computer. Computers often make our lives much easier than they are already. They free up some of our time, allowing us to perform work tasks, shopping, and research faster. This makes computers an essential tool for our everyday lives. Unreliable Computers