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 to) Fix 502 Bad Gateway. Problem: Sometimes computer problems happen when your computer's system becomes overloaded or important files become missing, deleted or broken. These types of problems occur from not properly maintaining your computer regularly, leading to critical errors and system malfunctions.How to) Fix 502 Bad Gateway. Problem: Sometimes computer problems happen when your computer's system becomes overloaded or important files become missing, deleted or broken. These types of problems occur from not properly maintaining your computer regularly, leading to critical errors and system malfunctions.