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Test for ketonuria using Bayer Ketostix reagent strips. Urine testing is the most common method of testing for ketones. Urine test strips utilize a nitroprusside reaction with acetoacetate to give a semi-quantitative measure based on color change of the strip. Although beta-hydroxybutyrate is the predominant circulating ketone, urine test ...
The same principle is used in test strips that have been commercialized for the detection of diabetic ketoacidosis (DKA). These test strips use a beta-hydroxybutyrate-dehydrogenase enzyme instead of a glucose oxidizing enzyme and have been used to detect and help treat some of the complications that can result from prolonged hyperglycemia. [34]
Diabetic ketoacidosis (DKA) is a potentially life-threatening complication of diabetes mellitus. [1] Signs and symptoms may include vomiting , abdominal pain , deep gasping breathing , increased urination , weakness, confusion and occasionally loss of consciousness . [ 1 ]
In severe diabetic ketoacidosis, the dipstix reaction based on sodium nitroprusside may underestimate the level of ketone bodies in the blood. It is sensitive to acetoacetate only, and the ratio of beta-hydroxybutyric to acetoacetate is shifted from a normal value of around 1:1 up to around 10:1 under severely ketoacetotic conditions, due to a ...
The most common cause of ketoacidosis is a deficiency of insulin in type 1 diabetes or late-stage type 2 diabetes. This is called diabetic ketoacidosis and is characterized by hyperglycemia, dehydration and metabolic acidosis. Other electrolyte disturbances such as hyperkalemia and hyponatremia may also be present.
Test strips use sodium nitroprusside to detect acetoacetate, and those with a glycine additive can detect acetone; however, none detect BHB. The reaction of ketones with sodium nitroprusside in an alkaline medium turns the test pad purple. [76] Ketonuria occurs in uncontrolled type 1 diabetes and in diabetic ketoacidosis. [77]
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