Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Kidney stone laboratory findings
Introduction
Overview
Overview
Laboratory findings consistent with the diagnosis of nephrolithiasis include hypercalcemia, hypercalciuria, hyperoxaluria, hypocitraturia, hyperuricemia and hyperuricosuria
Laboratory Findings
Laboratory Findings
- Laboratory findings consistent with the diagnosis of nephrolithiasis include:
The urine calcium/creatinine ratio should be less than 0.14[1]. Higher values suggest hypercalcuria.
The urine calcium to urinary citrate ratio (UCa/Ucit) is not well studied, but should maybe be < 0.7[2] Higher values may suggest hyperparathyroidism.
References
References
- ↑ Foley, Kevin F.; Boccuzzi, Lorenzo (2010). “Urine Calcium: Laboratory Measurement and Clinical Utility”. Laboratory Medicine. 41 (11): 683–686. doi:10.1309/LM9SO94ZNBHEDNTM. ISSN 0007-5027.
- ↑ Gafni RI, Langman CB, Guthrie LC, Brillante BA, James R, Yovetich NA; et al. (2018). “Hypocitraturia Is an Untoward Side Effect of Synthetic Human Parathyroid Hormone (hPTH) 1-34 Therapy in Hypoparathyroidism That May Increase Renal Morbidity”. J Bone Miner Res. 33 (10): 1741–1747. doi:10.1002/jbmr.3480. PMID 29878514.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Amandeep Singh M.D.[2]