Cystinuria is an inborn error of metabolism resulting from poor absorption and reabsorption of the amino acid cystine in the intestine and in the kidney. This leads to an accumulation of poorly soluble cystine in the urine and results in the production of kidney stones. Symptoms may include acute episodes of abdominal or lower back pain, presence of blood in the urine hematuria recurrent of kidney stones may result in frequent urinary tract infections which may ultimately result in renal insufficiency.
No special preparation is needed for Cystine Quantitative Mass Spectrometry Random Urine. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Cystine Quantitative Mass Spectrometry Random Urine. Your doctor depending on your condition will give specific instructions.
| Gender | Age groups | Value |
| UNISEX | All age groups | 10-98nmol/mg creatinine |