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Normal urine constituents Answer: Water, urea, creatinine, sodium, potassium, chloride,
uric acid, ammonia.
Abnormal urine constituents Answer: Glucose, protein, ketones, blood cells, hemoglobin,
nitrites, bilirubin.
Glycosuria Answer: Glucose in the urine. Condition: Diabetes mellitus.
Proteinuria Answer: Protein in the urine. Condition: Chronic kidney disease.
Ketonuria Answer: Ketones in the urine. Condition: Diabetic ketoacidosis.
Hematuria Answer: Blood in the urine. Condition: Kidney stones.
Hemoglobinuria Answer: Hemoglobin in the urine. Condition: Hemolytic anemia.
Nitrituria Answer: Nitrites in the urine. Condition: Urinary tract infection (UTI).
Bilirubinuria Answer: Bilirubin in the urine. Condition: Liver disease (e.g., hepatitis).
Pyuria Answer: White blood cells in the urine. Condition: UTI.
Normal urine pH range Answer: 4.5-8.0 (average ~6.0).
Renal calculi Answer: Hard deposits of minerals and salts that form in the kidneys.
Kidney stones composition Answer: Calcium, oxalates, uric acid, or cystine.
Dilute urine production Answer: Reduced ADH secretion → Less water reabsorption in
collecting ducts → More hypotonic urine.
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