Historically, staphylococci, pseudomonads, and Escherichia coli have been the nosocomial infection troika; nosocomial pneumonia, surgical wound infections, and vascular accessrelated bacteremia have caused the most illness and death in hospitalized patients; and intensive care units have been the epicenters of antibiotic resistance.
A warm spot can be noticed in the portion of your arm where there occurred the blood clot. You can also feel like having a burning sensation around the affected area and also at times you might feel like the area is warm when touched. In case of serious blood clots in arm, the area affected can turn red and inflamed.
1 You can have DVT and not know it, especially if the clot is small. 2  The most common symptoms of DVT are swelling in an arm or leg, tenderness that isn't from an injury, and skin that feels warm and is red in the area of the clot.  A clot usually forms in just one leg or arm, not both.