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.
Calories per serving of BLT on White 132 calories of White Bread, (2 slice) 87 calories of Bacon, pork, microwaved, (2 medium slices, cooked (raw product packed 20/lb)) 8 calories of Red Ripe Tomatoes, (2 slice, medium (1/4 thick)) 3 calories of Iceberg Lettuce (salad), (3 leaf, medium)