In those with symptoms and clinical signs of rheumatoid arthritis, the presence of significant concentrations of RF indicates that it is likely that they have RA. Higher levels of RF generally correlate with more severe disease and a poorer prognosis. A negative RF test does not rule out RA.
Macrosomia (big baby). The average newborn weight is about 3.4 kilograms (kg) / 7 pounds (lb) 8 ounces (oz). Babies weighing more than 4.5kg/ 9lb 15oz at birth are considered much larger than average or macrosomic, which literally means of large body.It's very difficult to determine whether a baby is truly macrosomic while still in the uterus (womb) - only the post-birth weight confirms this.abies weighing more than 4.5kg/ 9lb 15oz at birth are considered much larger than average or macrosomic, which literally means of large body. It's very difficult to determine whether a baby is truly macrosomic while still in the uterus (womb) - only the post-birth weight confirms this.
After spending approximately 40 weeks inside the womb, the average newborn weighs 7 1/2 pounds. Most babies weigh between 5 1/2 and 10 pounds. The average length of a newborn is 20 inches (50 centimeters), with a range of 18 to 22 inches. The average head circumference (the distance around the head) is 14 inches (35 centimeters).