URINALYSIS UNDER THE MICROSCOPE: FAST, CHEAP AND COMMON BUT STILL RELEVANT
Aim: The complete urine examination consisting of the analysis on the strip and the manual microscopic examination is one of the most important and used tests in current medical practice. The purpose of this study was to compare the efficiency of the strip vs the microscopy, but also the results obtained from the hospital compared to those from the ambulatory. Material and methods: The present study is a retrospective study conducted on a batch of 103 patients (53 hospitalized, 50 outpatient) between July and August 2019, with samples processed in the Clinical Laboratory of Medical Analyses of the Clinical Emergency Hospital for Children “Louis Țurcanu” Timișoara. Of the 103 patients, 63 (61.2%) were female, while 40 (38.8%) were male. Results: The red blood cells (RBCs) reading with the help of the strips and the bio-analyzer revealed negative results in 85.4% of the samples, while the microscopic examination revealed only 59.2% negative results. The same trend could also be observed in the case of leukocytes: 81.6% negative results on the strip, 20.4% results negative on microscopic examination. The p values for both examinations were <0.0001. Comparing hospital patients and outpatients, 5 entities (epithelia, bacteria, leukocytes, RBCs, and salts) were chosen, which were then divided by frequency (absent, very rare, rare, relatively common, common, numerous and deposit). Percentage values between the two groups were similar. ANOVA tests revealed the no difference either, p values being over 0.9277 when considering the absent values and over 0.1956 when excluding absent values. Conclusions: The difference between strip and microscope analyses for RBCs and leukocytes has proved to be statistically significant. No major percentage differences were identified between hospital and ambulatory for the number of positive samples for the epithelial variables, salts, leukocytes, RBCs, or bacteria.
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