Physical Examination Of Urine PDF

BROKENSHIRE COLLEGE, INC AUBF MEDICAL LABORATORY SCIENCE PHYSICAL EXAMINATION OF URINE  Toxic agents...

BROKENSHIRE COLLEGE, INC AUBF MEDICAL LABORATORY SCIENCE PHYSICAL EXAMINATION OF URINE  Toxic agents INTRODUCTION  Decreased renal blood flow iv. NOCTURIA  The physical examination of urine includes the determination of the urine color, clarity, and specific Definition gravity.  Excretion of more than 500 mL of urine at night  The observation of these characteristics provides  S.G < 1.018 preliminary information concerning disorders such Causes as glomerular bleeding, liver disease, inborn errors  Pregnancy of metabolism, and urinary tract infection.  Renal diseases, bladder stones  The results of the physical portion of the urinalysis  Prostate enlargement also can be used to confirm or to explain findings in the chemical and microscopic areas of urinalysis. v. DIURESIS Definition I. URINE VOLUME  Any increase in urine excretion Causes  Excessive water intake (polydipsia)  Normal range (24 hours) = 600 to 2000 mL  Diuretic therapy, hormonal imbalance  Average (24 hours) = 1200 to 1500 mL  Renal dysfunction, drug ingestion  Night urine output = 2000 mL/24hrs (in adults)  Examine the specimen under a good light source  >2.5 L/day (in adults)  Look down through the container against a white  2.5-3.0 mL/kg/day (in children) background (also works for determining urine clarity Causes but not the best way)  Increased fluid intake  Diuretics, nervousness  Diabetes mellitus NORMAL PIGMENTS IN URINE  Diabetes insipidus ii. OLIGURIA 1. UROCHROME  Major pigment (yellow) Definition  Lipid-soluble pigment  Decreased urine volume that is a product of 