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Liquid urine quality controls2021-03-26T14:21:24+01:00

Urine diagnostic quality controls

Cystatin C Reagent and Calibrator

In patients with symptoms of diseases of the kidneys and the efferent urinary tract, qualitative and quantitative laboratory tests are important factors for diagnosis. Initially, a test strip is usually used to determine qualitative factors such as pH, the presence of total protein, glucose, blood components such as haemoglobin/erocytes and leucocytes or nitrite in the urine. If the screening results for one of the parameters are positive, a quantitative analysis shall be performed on the clinical chemistry analyser.

Quality Controls
for urine diagnostics with test strips

The liquid control Duotrol® U Dipstick is based on human urine and is used to monitor qualitative and semi-quantitative analysis conditions in urine diagnostics. It can be used in various devices for rapid urine analysis and for urine test strips as a control for parameters such as pH, protein in urine, bilirubin, glucose and ketones. The user can compare the reading with expected ranges by visual or instrument evaluation, ensuring consistent reagent and instrument performance.

Applicable for different devices and test strips
Liquid quality control for urine analysis
Quality controls
for urine diagnostics in automatic analysers

The human urine matrix based liquid quality control Duotrol® Urin Liquid is designed to monitor analytical conditions in the clinical laboratory for quantitative urine diagnostics. Among other things, it allows control in the quantification of parameters such as urea, uric acid, sodium, chloride, creatinine (enzymatic method and Jaffé method), glucose, total protein, microalbumin and hCG.

Indications for urine diagnostics

One speaks of proteinuria when an excessive excretion of protein (albumen) occurs via the urine. Increased protein excretion can be a temporary event (benign reversible proteinuria) or pathological. A pathological proteinuria can have various causes, for example increased albumin (albuminuria) can be excreted.

Haemoglobin in urine can be an indication of haemolysis, kidney disease (e.g. tumours) or bleeding in the lower urinary tract, but also of poisoning or heart attack.

Inflammatory diseases of the kidneys and the urinary tract result in increased numbers of leukocytes in the urine.

In diabetes mellitus, the amount of glucose in the urine increases, this is called glucosuria. One cause of glucosuria can be an increased blood sugar level or a reduced reabsorption of glucose from the primary urine due to diseases of the renal tubules (diabetes renalis).

The nitrite present in the urine may be indicative of bacteriuria. The most common urinary pathogens reduce nitrate present in urine to nitrite.

Ketones in urine are an indication of ketosis or ketoacidosis. This can occur with diabetes mellitus, hunger or prolonged low intake of carbohydrates.

Creatinine (also: creatinine) is used to assess kidney function. It is used as a reference for quantitative measurements in urine to take into account the degree of concentration of urine. The cause of a high creatinine level in the urine can, for example, be high blood pressure due to a narrowing of the renal vessels (renovascular hypertension).
Duotrol Urine Liquid and U Dipstick for urine analysis by BIOMED Labordiagnostik

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