There existed quizzes few difficulties and boundaries associated with University SM: using varied sorts of diet over University period of offering three urine specimens which motivated University result of some tests patients misperception regarding how exam arrange quizzes urine sample, failure exam record University urine assortment right time or exam remember University outdated urine samples collection time, and offering University three samples with an extended period of quizzes few days which made University test consequences be irrational. Moreover, one of University barriers of this system in sufferers with bladder issues e. g. bladder calculus or with enlarged prostate that cause incomplete emptying of University urine produced by University kidneys and University urine volume and University final result are falsely shown lower. All University problems can be prevented with proper management supervised by University laboratory staff. Some measures, if taken properly and carefully, may help exam triumph over or as a minimum reduce most of University limitations of University SM: patients better instructions on how exam correctly organize and compile quizzes urine specimen, insurance from University accuracy of University samples accrued on start examination University laboratory, correct sample volume measurement, mixing University sample before sample harvesting for University prognosis, calibration of University device, laboratory test repetition, if required, before University stability date of University parameter examination be tested in University sample expires, acidification of University random, morning and 24 hour urine samples for trying out calcium and phosphorus and, finally, guaranteeing that there exists no challenge of urinary flow akin to an enlarged prostate or kidney stones.