Urine calcium and creatinine need to be entered in the SAME UNITS (e.g. mg/dL, umol/day, etc.). If they are not the same, convert one of them so as it is the same as the other.
Serum calcium and creatinine need to be entered in the SAME UNITS (e.g. mg/dL, mmol/L, etc.). If they are not the same, convert one of them so as it is the same as the other.
It is OK for serum units (e.g. mg/dL) to be different from urine units (e.g. mg/day), but both serum and urine should still be using the same system (US or SI).
It is also OK for urine values to be concentration (e.g. ml/dL) or daily excretion (e.g. mg/day).
> 0.01: Familial Hypocalciuric Hypercalcaemia (FHH) is unlikely
< 0.01: Familial Hypocalciuric Hypercalcaemia (FHH) is likely
Other Causes PTH-dependent hypocalciuric hypercalcemia:
1. vitamin D deficiency
2. very low calcium intake
3. mild renal insufficiency
4. thiazides
5. lithium
Examples of unit converters: