Place smoke detectors in the best places around the house. It is important to install detectors near sleeping areas and on every level of your home. Also place a detector in hallways and a carbon monoxide detector near heating, such as gas furnaces. Avoid installing a smoke detector in the kitchen.
The kidneys perform the excretory functions of this system. These organs produce urine, a fluid waste product containing water, ions, and small soluble compounds. Urine leaving the kidneys travels along the urinary tract, which consists of the paired ureters and the urinary bladder, where urine is temporarily stored. When urination, or micturition, occurs, contraction of the muscular urinary bladder forces urine through the.
A post-void residual urine greater than 50 ml is a significant amount of urine and increases the potential for recurring urinary tract infections. In adults older than 60 years, 50-100 ml of residual urine may remain after each voiding because of the decreased contractility of the detrusor muscle. In chronic retention, ultrasound of the bladder may show massive increase in bladder capacity (normal capacity is 400-600 ml). Determining the serum prostate-specific antigen (PSA) may help diagnose or rule out prostate cancer, though this is also raised in BPH and prostatitis.