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.
White and Red Potatoes. White and red varieties of potato, which are easy to find in many supermarkets, have a similar number of carbohydrates per serving. One cup of diced white potatoes, including their skin, contains 23.6 grams of carbs. The same size serving of diced red potatoes, including their skin, has 23.9 grams of carbs.