FIELD: medicine.
SUBSTANCE: invention refers to medicine, namely to laboratory investigations. Renal functional reserve is evaluated by sampling and analysing meat-loaded urine. Liquid 2.5-3 l is prescribed with underlying protein-free diet, on the following day, 4-6 hours later, meat-loaded urine is sampled. The sample is applied on a test card of a Lytos-system diagnostic kit, and the structures are evaluated in polarising microscopy ×60 - ×100. If observing oily many-coloured irregular formations, reduced renal functional reserve is stated, and the observed regular salt crystals show physiological renal functional reserve.
EFFECT: method simplifies a procedure of evaluating renal reserve in both patients with kidney diseases, and those suffering latent renal pathology during prophylactic medical examination.
3 dwg, 3 ex
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