Acute Tubular Necrosis (ATN) : Tests
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Examination usually indicates acute renal failure. There may be signs of fluid overload, including abnormal sounds on listening to the heart and lungs with a stethoscope (auscultation. Urinalysis may show casts, renal tubular cells, and red blood ...
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Abdominal magnetic resonance imaging (MRI) is a noninvasive procedure that uses powerful magnets and radio waves to produce pictures of the inside of the abdomen without exposure to ionizing radiation (x-rays).
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Magnetic resonance imaging (MRI) scanners rely on the principles of atomic nuclear-spin resonance. Using strong magnetic fields and radio waves, MRI collects and correlates deflections caused by atoms into images.
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Health care providers also use auscultation to listen to the heart sounds of unborn infants...Auscultation is a method used to listen to the sounds of the body during a physical examination ...The Doppler technique can also be used to hear pulses in the hands and feet...
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BUN (blood urea nitrogen) is a test that measures the amount of urea nitrogen (a breakdown product of protein metabolism ) in the blood.
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The blood urea nitrogen (BUN) test measures the level of urea nitrogen in a sample of the patient ' s blood. Urea is a substance that is formed in the liver when the body breaks down protein.
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The creatinine clearance test compares the level of creatinine in urine with the creatinine level in the blood, usually based on measurements of a 24-hour urine sample and a blood sample drawn at the end of the 24-hour period. Clearance is often measured as milliliters/minute (ml/min). Because creatinine is found in stable plasma concentrations, is freely filtered and not reabsorbed, and is minimally secreted by the kidneys, creatinine clearance is used to estimate the glomerular filtration rate (GFR) -- the standard by which kidney function is assessed.
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Fractional excretion of sodium (FENa) is the amount of sodium actually excreted by your body relative to the amount filtered by the kidney. FENa is not a test, but rather a calculation based on the concentrations of sodium and creatinine in your blood and urine. Urine and serum chemistry tests are necessary to perform this calculation.
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A renal biopsy is a way to obtain a sample of kidney tissue. The sample is then examined in the laboratory.
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Kidney biopsy is a medical procedure in which a small piece of tissue is removed from the kidney for microscopic examination. Purpose The test is usually done to diagnose kidney disease and to evaluate the extent of damage to the kidney.
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Creatinine is a breakdown product of creatine, which is an important part of muscle. A serum creatinine test measures the amount of creatinine in the blood.
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Creatine is an important compound produced by the body. It combines with phosphorus to make a high-energy phosphate compound in the body.
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This test measures the amount of potassium in the blood.
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Urinalysis is a physical and/or chemical examination of the urine. It consist of a battery of chemical and microscopic tests to screen for urinary tract infections , renal (kidney) disease , and diseases of other organs that result in the appearance of abnormal metabolites (break-down products) in the urine.
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Urinalysis is a diagnostic physical, chemical, and microscopic examination of a urine sample (specimen). Specimens can be obtained by normal emptying of the bladder (voiding) or by a hospital procedure called catheterization.
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Urinalysis is an important test used in diagnosing diseases of the genitourinary tract. Urine is examined for pH and specific gravity by chemical and direct microscopic methods.
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A urinalysis is a group of manual and/or automated qualitative and semi-quantitative tests performed on a urine sample. A routine urinalysis usually includes the following tests: color, transparency, specific gravity, pH, protein, glucose, ketones, blood, bilirubin, nitrite, urobilinogen, and leukocyte esterase.
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The urine specimen collection is a procedure used to obtain a sample of urine from a patient for diagnostic tests. Purpose The purpose of obtaining a urine sample is to test for any abnormalities that may be present, such as bacteria , ketones, or drugs.
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Urine typically contains epithelial cells shed from the urinary tract. Urine cytology evaluates this urinary sediment for the presence of cancerous cells from the lining of the urinary tract, and it is a convenient noninvasive technique for follow-up analysis of patients treated for urinary tract cancers.
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A urinalysis is a group of manual and/or automated qualitative and semi-quantitative tests performed on a urine sample. A routine urinalysis usually includes the following tests: color, transparency, specific gravity, pH, protein, glucose, ketones, blood , bilirubin, nitrite, urobilinogen, and leukocyte esterase.
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A urine dipstick is a colorimetric chemical assay that can be used to determine the pH, specific gravity, protein, glucose, ketone, bilirubin, urobilinogen, blood, leukocyte, and nitrite levels of an individual ' s urine. It consists of a reagent stick-pad, which is immersed in a fresh urine specimen and then withdrawn.
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The osmolality urine test measures the osmolality (concentration of particles) of the urine.
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Urine specific gravity measures the concentration of particles in the urine (see also urine concentration test ).
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