If your red blood cells are being destroyed, this can result in a condition called hemolytic anemia. There are two types of Coombs tests: the direct Coombs test and the indirect Coombs test. The direct test is more common and checks for antibodies that are attached to the surface of your red blood cells.n abnormal result to an indirect Coombs test means you have antibodies circulating in your bloodstream that could cause your immune system to react to any red blood cells that are considered foreign to the body, particularly regarding those that may be present during a blood transfusion.
Generally, a typing speed of 40 WPM (Words Per Minute) is considered an average typing speed. A typing speed above 40 WPM (Words Per Minute) is higher than the average score, and over 100 WPM is usually considered a high speed (when it is achieved with zero errors).
The average person types between 38 and 40 words per minute -- between 190 and 200 characters per minute. However, professional typists type a lot faster on average -- upwards of 65 to 75 WPM. A good typing speed compared to the general population would be over 40 WPM, but compared to professionals it would be in the 75 WPM range.