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The blocking urinary catheter: the role of variation in urine flow
Author(s) -
BURR R.G.,
NUSEIBEH I.
Publication year - 1995
Publication title -
british journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.773
H-Index - 148
eISSN - 1464-410X
pISSN - 0007-1331
DOI - 10.1111/j.1464-410x.1995.tb07833.x
Subject(s) - urine , urinary system , urinary catheter , catheter , incidence (geometry) , medicine , urology , anesthesia , surgery , mathematics , geometry
Objectives To relate blockage of the urinary catheter to urine chemistry. Patients and methods Of 44 patients (age range 19–72 years) with an indwelling urinary catheter, 21 were troubled by frequent blockage and 23 experienced no blockage. Variation in urinary pH and calcium concentration were determined during a 24 h period and related to the occurrence of blockage using discriminant analysis. Results The maximum pH and calcium concentrations observed, or the maximum discriminant factors calculated, correctly discriminated 91% of patients (95% CI, 78–97%). Conclusion Attention to volume and variability of fluid intake by the patient should have a major impact on the incidence of blockage of the indwelling urinary catheter.