Cystine
| Material: | 2 ml EDTA-plasma, deproteinized, frozen 10 ml of 24-hour collection urine. For further information regarding the correct way of collecting 24-hr urine, please refer to section “Collection urine/24-hr urine” (Material collection). |
| Methods: | Flüssigkeitschromatographie-Massenspektrometrie (LC-MS/MS) → LC-Tandem-Massenspektrometrie | Reference range | EDTA-plasma: < 1,8 mg/dl Urine (adults): < 9 mg/0,1 g Crea (< 30 mg/d) |
| Indication | Suspicion of cystinuria. Kidney stones (2 – 3 % of all kidney stones are cystine stones) |
| Comment | Please also refer to Amino acids in the urine (ASU) |
| Please note | We would generally recommend performing a screening test for cystinuria in all patients with nephrolithiasis, independent of the actual stone composition. In cystinuria, apart from cystine, secretion of lysine, ornithine and arginine is increased. |
| External services | ja |
| Please also refer to: | Amino acids in the urine |
More Results for the letter C
- C-peptide in the serum (CPEP)
- C1-esterase inhibitor (C1-INH) (C1EA, C1EH)
- Activity evaluation, protein evaluation
- C2-complement (C2S)
- C3-complement in the serum (C3)
- C3-nephritis factor (C3NF)
- C3NeF
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- CA 125 (CA 125)
- CA 15-3 (CA15)
- CA 19-9 (CA19)
- CA 72-4 (CA72)
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- Cd
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- hCT, human calcitonin
- Calcium in serum (CA)
- Ca
- Calcium in urine (CAU)
- Calcium, ionized, in serum (CAI)
- Calprotectin (ECALP)
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- Campylobacter jejuni/coli infection (KCAMP, ECAMP, CAMPG, CAMPA)
- Canary serum, feather, excrement antibodies (IgG) (CANA)
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- CO-Hb
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- Carotene (β-) (CARO(b))
- Group of carotenoids with provitamine A activity
- Cartilage autoantibodies (KNOR)
- Catecholamines in plasma (KATP)