â¢ GRADE (noun) The noun GRADE has 9 senses: 1. a body of students who are taught together. 2. a relative position or degree of value in a graded group. 3. the gradient of a slope or road or other surface. 4. one-hundredth of a right angle. 5. a degree of ablaut.
The most common UTIs occur mainly in women and affect the bladder and urethra. 1  Infection of the bladder (cystitis). 2  This type of UTI is usually caused by Escherichia coli (E. coli), a type of bacteria commonly found in the gastrointestinal (GI) tract. 3  However, sometimes other bacteria are responsible. This type of UTI can occur when GI bacteria spread from the anus to the urethra. 2  Also, because the female urethra is close to the vagina, sexually transmitted infections, such as herpes, gonorrhea, chlamydia and mycoplasma, can cause urethritis.
Intrarenal causes of AKI include conditions that cause direct damage to the kidney tissue , resulting in impaired nephron function.