Applying a drop of control to the top of a test pad does not ensure optimum performance for each reagent. Do not drop control solution onto the ID band. To ensure optimum performance refer to “Proper dipping techniques for Siemens urinalysis test strips” above. Siemens is committed to continuous innovation in urinalysis and providing our customers with solutions for improved workflow and improved clinical information at the point of care. A multicenter study was conducted to identify patients with potential UTIs. There were 1,887 urine specimens tested comparing the leukocyte and nitrite results of Multistix urinalysis strips to urine culture. Leucocytes — if these are present in large amounts as for example in infection, then there is a colour change to purple. The test strips can be used on Siemens’ CLINITEK Status ® and CLINITEK Advantus ® analyzers without impacting performance.

The ID bands have a hydrophobic (water repellent) coating that helps to prevent build-up of liquid. Touching this band may disrupt the coating and allow more fluid to collect on the band. This can cause a strip identification error. As stated in the product insert, test pads, including ID bands, should not be touched. pH — this tells you how acid or alkali the urine is. It can be used as a guide to hyperventilation as it goes greeny blue (alkali) in people who hyperventilate. Glucose — at 30 seconds look at the colour of the glucose square. If there is any glucose (or sugar) present it will change colour, possibly to a dark brown. Any amount of glucose in the urine needs further investigation by your GP – you may be diabetic.

Assays

Dropper style controls should only be used if the control is transferred to an appropriate test tube before use. Can also be used with Siemens Clinitek Status and Clinitek Status+ Analysers for automatic analysis of results. Yes, if too much liquid is left on the ID band area. Dip It Right! Using the proper dipping technique greatly reduces the likelihood of these errors. Specific gravity tells you how concentrated the urine is and simply reflects how much or little you are drinking. In chronic renal failure, the kidney cannot concentrate urine and it is always weak with a low specific gravity (dark green).

A multicenter study was conducted to identify patients with potential UTIs. There were 1,887 urine specimens tested comparing the leukocyte and nitrite results of Multistix 10 SG urinalysis strips to urine culture. 1 Protein — if protein is present then the colour changes to a bottle-green. Protein is a sign of disease of the renal tract — almost any kidney disease can present with protein in the urine. Enables user compliance with IVDD regulations by reporting results only from urinalysis strips that have been validated for use on the CLINITEK Status analyzers.

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Ketones — at 40 seconds look at the ketone square—if ketones are present then they may have changed to a dark purple. Ketones can be present in diabetes but the usual cause for them is hunger. If you’ve found ketones in your urine, go and have something to eat which includes some carbohydrate and test again after 30 minutes to 1 hour. If ketones are still present then you need to see your GP. One cause of ketones is a low carbohydrate diet used in some slimming regimes. Having ketones is not harmful (Eskimos are in a state of permanent ketosis).