In this article. Creatinine is a waste product from the normal breakdown of muscle tissue. As creatinine is produced, it's filtered through the kidneys and excreted in urine. Doctors measure the blood creatinine level as a test of kidney function.The kidneys ' ability to handle creatinine is called the creatinine clearance rate, which helps to estimate the glomerular filtration rate (GFR) -- the rate of blood flow through the kidneys.s creatinine is produced, it's filtered through the kidneys and excreted in urine. Doctors measure the blood creatinine level as a test of kidney function.
There are 163 calories in 1 medium White Potato (Flesh and Skin, Baked). Calorie breakdown: 1% fat, 90% carbs, 9% protein.
How many calories are in baked potatoes with sour cream? Calories in baked potatoes with sour cream   The calories in baked potatoes with sour cream are determined by the weight of the potatoes and the amount of sour cream (and â¦ anything else that you might add).aked Potato = 200 caloires  Gravy = 100 calories   A baked potato and gravy are about 300 calories.