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Squamous Cells

With some exceptions, squamous cells do not generally come from the urinary tract. A large number of squamous cells are found in the lower third of the urethra and mainly in vaginal secretions in women, and the presence of these cells signals contamination of the specimen. The observation of blood, leukocytes and bacteria may, therefore, be due to this contamination, making the urine sediment interpretation of little use. Depending on the circumstances, the sample should be taken again with greater control over the specimen collection.

Term of the Week

Hot zone

A hot zone is a section of a facility (sometimes an entire facility or even a city district) where there is a high risk of contamination by patients with an infectious disease. All individuals entering a hot zone must respect appropriate protective measures. By analogy, “cold zone” and “warm zone” are used to refer to areas where there is no infected individual or only individuals suspected of having an infection.