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.
In 2017, the annual earnings limit is $16,920. That means in 2017 you can earn up to $16,920 and continue to receive all your Social Security benefits. This is an increase from the limit of $15,720 which applied in 2015 and 2016. If you earn over $16,920, there are a set of rules that determine how much your Social Security benefits will be reduced.