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.
Hemoglobin Levels for Adults. According to the World Health Organization, a normal hemoglobin level for an adult male is between 13.8 and 17.2 g/dL. A normal level for a non-pregnant adult woman is between 12.1 and 15.1 g/dL. Men have higher hemoglobin levels than women because women lose red bloods each month during menstruation. A normal level for a pregnant woman is at or above 11.0 g/dL. During pregnancy, blood volume increases by 40 to 50 percent, but the red blood cell count increases by just 15 to 20 percent.