For the adult female, with her generally lower muscle mass, the normal range is 0.5 to 1.1 mg/dl, or 44 to 97 μmol/L by the enzymatic method.Ĭopyright © 1990, Butterworth Publishers, a division of Reed Publishing. For the adult male, the normal range is 0.6 to 1.2 mg/dl, or 53 to 106 μmol/L by the kinetic or enzymatic method, and 0.8 to 1.5 mg/dl, or 70 to 133 μmol/L by the older manual Jaffé reaction. The normal serum creatinine ( sCr) varies with the subject's body muscle mass and with the technique used to measure it. In contrast, the rugged rancher who eats in excess of 125 g protein each day may have a normal BUN of 20 mg/dl. Learn what a uric acid blood test tells you, how it’s done, and what the results mean. Her higher glomerular filtration rate (GFR), expanded extracellular fluid volume, and anabolism in the developing fetus contribute to her relatively low BUN of 5 to 7 mg/dl. High levels or uric acid, one of the body’s waste products, can be a sign of gout or kidney stones. A BUN of 15 mg/dl would represent significantly impaired function for a woman in the thirtieth week of gestation. The range is wide because of normal variations due to protein intake, endogenous protein catabolism, state of hydration, hepatic urea synthesis, and renal urea excretion. The normal range of urea nitrogen in blood or serum is 5 to 20 mg/dl, or 1.8 to 7.1 mmol urea per liter. The BUN, then, is roughly one-half (28/60 or 0.446) of the blood urea. In Europe, the whole urea molecule is assayed, whereas in the United States only the nitrogen component of urea (the blood or serum urea nitrogen, i.e., BUN or SUN) is measured. The range considered normal is 7-20 milligrams per deciliter. Both are relatively small molecules (60 and 113 daltons, respectively) that distribute throughout total body water. Your result will be a number that measures how much BUN is in your blood. Creatinine is the product of muscle creatine catabolism. Urea is the primary metabolite derived from dietary protein and tissue protein turnover. Before you read this guide, What Are the. Typically, when both BUN and creatinine are elevated, about 30 percent of kidney function remains. A higher reading indicates overall declining kidney health. The normal creatinine level in a cat with healthy kidneys is between 0.6 and 2.4 mg/dL. Below, we’ll explain these and other values in your dog’s blood reports. Creatinine, also a waste product, is the second key indicator of overall kidney health. Think about the number of bins: The number of bins can impact the visual representation of the data. If the range is large, you may need to create wider bins to capture the full range of data. Consider the range of values: Take into account the range of values in the dataset. If your dog has a higher BUN level, that can be indicative of any one of several problems and must be addressed immediately. Is it normally distributed, skewed, or multimodal 2. Urea and creatinine are nitrogenous end products of metabolism. Normal BUN levels in dogs rarely exceed 25 to 30 ml/dL.
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