1 Normal inferior vena cava diameter: 1.5 to 2.5 cm. 2  Less than 50% change in diameter with normal respiration or with a sniff. 3  Elevated Right Atrial Pressure: 4  Dilated inferior vena cava. 5  Dilated hepatic veins. 6  Little or no respiratory change in caval diameter.
Depending on how much money you earn, you may not pay Social Security taxes on your entire income. That's because a cap is set each year on the amount of income subject to Social Security taxes. Last year, that limit was $118,500, but in 2017, it jumped to $127,200.
For 2016, the maximum limit on earnings for withholding of Social Security (Old-Age, Survivors, and Disability Insurance) Tax remains $118,500.00. The Social Security Tax Rate remains at 6.2 percent. The resulting maximum Social Security Tax for 2016 is $7,347.00.