What is the pH value range of human blood?
A
7.1-7.15
B
7.45-7.55
C
7.22-7.28
D
7.35-7.45
Correct Answer: 7.35-7.45
Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually the body maintains the pH of blood close to 7.40.