1 Use a small screwdriver to press the spline into the corners as necessary. 2  As you press the spline into the frame it will make the screen taught. 3  Once installed, trim the excess screen material with scissors or a utility knife.
In normal pregnancy the mean fetal haemoglobin increases linearly from 11 g/dl at 17 weeks' gestation to 15 g/dl at 40 weeks' gestation and one standard deviation is approximately 1 g/dl. The haemoglobin was also measured in fetal blood from 154 red cell isoimmunised pregnancies from 17 to 36 weeks' gestation.
Normal hemoglobin levels are different in women and in men. In non-pregnant women, normal hemoglobin ranges from 120 g/L to 160 g/L. In men, normal hemoglobin levels range from 140 g/L to 180 g/L. Canadian Blood Services tests each donorâs hemoglobin at the clinic and requires a minimum of 125 g/L for donation.