Question

Digoxin has a half life of 35 hours how long for 8ng/ml to decrease to 2ng/ml

Answer 1

70 hours

Step-by-step explanation:

After ONE half life there will be 8 ====> 4 ng/ml

then ONE more half life 4 ng/ml ====> 2 ng/ ml

TWO half lives = 35 * 2 = 70 hours

70 hours IS correct given the info in the post......