Writers and authors earned a median annual salary of $61,240 in 2016, according to the U.S. Bureau of Labor Statistics. On the low end, writers and authors earned a 25th percentile salary of $43,130, meaning 75 percent earned more than this amount. The 75th percentile salary is $83,500, meaning 25 percent earn more. In 2016, 131,200 people were employed in the U.S. as writers and authors.
Which numbers are especially important in predicting kidney healthâand what's in the normal range? Estimated GFR number â Measures kidney function, over 60 is normal, under 60, talk to your doctor. GFR, or glomerular filtration rate, tells you how well your kidneys are doing their job of filtering the blood.
Creatinine is a chemical waste product that is released into the blood when muscles contract. When kidney function is normal, creatinine is filtered from the blood through the kidneys. When creatinine levels are high, it can be an indicator of kidney disease. For adults, dialysis is recommended when creatinine levels reach 10.0 mg/dL; for children, dialysis is recommended when levels reach 2.0 mg/dL. To find out what a personâs creatinine levels are, a doctor will order a blood test called serum creatinine to determine kidney function and use the number to calculate the glomerular filtration rate (GFR), which can determine the stage of chronic kidney disease.