:Normal range
Transudates: <1.016
Exudates : >1.016
Comment: Used to assist in monitoring fluid intake of patients at risk of developing urinary stone formation. Specific gravity varies greatly with fluid intake and state of hydration. High specific gravity is associated with decreased renal perfusion, SIADH, uncontrolled diabetes mellitus, proteinuria, congestive heart failure and obstructive uropathy. Low specific gravity values are found in renal tubular damage, chronic renal insufficiency, ADH resistance, hypokalemia diabetes insipidus and malignant hypertension. Ketoacidosis may give increased specific gravity reading, whereas glucose and urea concentration of > 1% may give lower results
Sample: Body fluids, urine