Table 1 Case 1 initial investigation workup during inpatient stay

Corrected Calcium (mmol/L)

3.19

2.21–2.52

Phosphate (mmol/L)

0.66

0.81–1.45

Sodium (mmol/L)

135

133–146

Potassium (mmol/L)

4.1

3.5–5.3

Creatinine (umol/L)

49

45–84

Estimated glomerular filtration rate (mL/min/1.73 m²)

> 60

Parathyroid hormone (pg/ml)

84

15–65

Vitamin D total (nmol/L)

< 10.0

> 50.0

24 h urine calcium (mmol/24 hr)

1.51

2.5–7.5