These 10 animal facts will amaze you. Color blindness is most often a genetic visual deficiency that limits the colors that an individual can detect. Most people with this condition don't only see in black and white. The colors affected are usually limited to green and red, which often appear as shades of tan or brown.hese 10 animal facts will amaze you. Color blindness is most often a genetic visual deficiency that limits the colors that an individual can detect. Most people with this condition don't only see in black and white. The colors affected are usually limited to green and red, which often appear as shades of tan or brown.
The duration of the QT-interval varies dependent upon how fast the heart is beating, but in normal healthy people, when the heart is beating 60 beats per minute, it is between 350 and 440 milliseconds.
This enzyme is also called alanine transaminase, or ALT. The normal GPT usually range for adults in most labs is 0 to 35 units per liter (U/L). The normal range may vary slightly from lab to lab.Your SGPT level may be much higher than normal (up to 50 times the upper limit of normal) if: * You have liver damage from an acute viral infection such as viral hepatitis A, B, or C. * You have liver damage caused by medicines you have taken.he normal range may vary slightly from lab to lab. Your SGPT level may be much higher than normal (up to 50 times the upper limit of normal) if: * You have liver damage from an acute viral infection such as viral hepatitis A, B, or C. * You have liver damage caused by medicines you have taken.