What causes isosthenuria?
Causes of Abnormally Low Levels Isosthenuria (USG 1.008–1.014) occurs with renal disease ( >75% nonfunctioning tubules or chronic renal failure), administration of diuretics (furosemide) and hypercalcemia. Hyposthenuria or isosthenuria in the face of dehydration or azotemia supports a diagnosis of renal disease.
What does a specific gravity of 1.050 mean?
Ideally, urine specific gravity results will fall between 1.002 and 1.030 if your kidneys are functioning normally. Specific gravity results above 1.010 can indicate mild dehydration. The higher the number, the more dehydrated you may be.
What does a specific gravity of 1.040 mean?
A value >1.035-1.040 suggests possible contamination, very high levels of glucose, or recently received low-molecular-weight dextran or high-density radiopaque dyes. A high specific gravity is also seen in shock, nephrotic syndrome, dehydration, acute glomerulonephritis, heart failure, or liver failure.
What is the meaning of specific gravity in urine?
Definition. Urine specific gravity is a laboratory test that shows the concentration of all chemical particles in the urine.
What does Hyposthenuria mean?
Definition. An abnormally low urinary specific gravity, i.e., reduced concentration of solutes in the urine. [
What causes high urine specific gravity?
The first and most common reason for an increase in urine specific gravity is dehydration. The second reason for a high specific gravity is an increased secretion of anti-diuretic hormone (ADH). ADH causes increased tubular water re-absorption and decreased urine volume.
Is urine specific gravity 1.010 normal?
Normal results in adults generally range from 1.010 to 1.020. Abnormal results are generally those below 1.010 or above 1.020. In patients with certain kidney diseases, USG doesn’t vary with fluid intake and is called a fixed specific gravity.
What does a urine specific gravity of less than 1.005 mean?
Test: Specific Gravity Specific gravity will decrease when the water content is high and the dissolved particles are low (less concentrated). Low specific gravity (<1.005) is characteristic of diabetes insipidus, nephrogenic diabetes insipidus, acute tubular necrosis, or pyelonephritis.
When specific gravity is high?
Specific gravity measures the kidney’s ability to concentrate or dilute urine in relation to plasma. Because urine is a solution of minerals, salts, and compounds dissolved in water, the specific gravity is greater than 1.000. The more concentrated the urine, the higher the urine specific gravity.
What causes elevated specific gravity in urine?
The higher the number of particles in the urine, the higher the urine specific gravity. If there are more particles than in water, urine will be denser, and the specific gravity will be higher. Particles present in the urine may include glucose, proteins, and ketones.
What does a specific gravity of 1.035 mean?
The upper limit of the test pad, a specific gravity of 1.035 indicates concentrated urine, one with many substances in a limited amount of water. This can indicate that your kidneys aren’t functioning properly, or simply that you aren’t drinking enough water.