URINALYSIS
URINALYSIS 1. Sample Collection & Pre-Analytical Factors Avoid strenuous physical exercise for 24 h before collection (can cause transient proteinuria/hematuria). Midstream, 1st morning urine — most concentrated, most acidic, best for preserving formed particles (cells/casts). Preferred for pregnancy test, TB culture, and detecting orthostatic proteinuria. Permanent indwelling catheter → associated with bacteriuria, hematuria, WBCs, and […]