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age-associated changes in the urinary system

The urinary system undergoes change with aging. Physiology: 1) decreased bladder capacity (from 600 mL to NOT < 300 mL) 2) increased urine residual volume (PVR NOT > 50 mL) 3) occasional involuntary detrusor muscle contractions 4) decreased urinary flow rate 5) prostate enlargement in men 6) decreased prostatic secretions 7) decreased Tamm-Horsfall protein

Related

micturition (urination) urinary tract urologic disease

General

age-related physiological changes

References

  1. Essentials of Clinical Geriatrics, 4th ed, Kane RL et al (eds) McGraw Hill, NY, 1999
  2. UCLA Intensive Course in Geriatric Medicine & Board Review, Marina Del Ray, CA, Sept 29-Oct 2, 2004
  3. The Merck Manual of Geriatrics, 3rdh ed, Merck & Co, Rahway NJ, 2000
  4. Taffet GE, Physiology of Aging, In: Geriatric Medicine: An Evidence-Based Approach, 4th ed, Cassel CK et al (eds), Springer-Verlag, New York, 2003