The expected urine creatinine excretion per 24 hours: Males: 13-29 mg/kg of body weight/24 hours. Females: 9-26 mg/kg of body weight/24 hours. Reference ranges for male and female patients <18 and >83 years of age have not been established.
blindness. lack or loss of ability to see (see vision). Legally, blindness is defined as less than 20/200 vision in the better eye with glasses (vision of 20/200 is the ability to see at 20 feet only what the normal eye can see at 200 feet). A person with 20Â° or less vision (pinhole vision) is also legally blind.
Or when you have a visual field of 20 degrees or less. (Your eye doctor may call this tunnel vision.) Low vision: When youâre either legally blind (you have a visual acuity of less than 20/200 or tunnel vision) or have visual acuity between 20/70 and 20/200, despite the use of glasses or contacts.