Patient Profile
Name: Patricia Q.*
History:
- African-American female
- History of type 2 diabetes mellitus (diagnosed at age 22)
- Originally diagnosed with chronic kidney disease (CKD) stage 3 at age 55
Mild hyperphosphatemia
- Patient is 60 years old, recently diagnosed with CKD Stage 5, and has started dialysis
- Serum phosphorus, 6.0 mg/dL
- Serum calcium, 8.4 mg/dL
- Ca x P, 50 mg2/dL2
- Serum iPTH, 210 pg/mL
- Serum albumin, 3.8 g/dL
Moderate hyperphosphatemia
- Patient is 62 years old and has been taking a calcium-based phosphate binder, but now shows evidence of hypercalcemia
- Serum phosphorus, 6.3 mg/dL
- Serum calcium, 11.1 mg/dL
- Ca x P, 70 mg2/dL2
- Serum iPTH, 550 pg/mL
- Now on vitamin D therapy
- Serum albumin, 3.6 g/dL
Severe hyperphosphatemia
- Patient is 64 years old and has been taking a resin-based binder, but serum phosphorus levels have been in and out of K/DOQI targets for the past 1.5 years. She has been uncontrolled for the past 2 months
- Serum phosphorus, 7.8 mg/dL
- Serum calcium, 9.5 mg/dL
- Ca x P, 74 mg2/dL2
- Serum iPTH, 280 pg/mL
- Serum albumin, 3.2 g/dL
*Fictional case study.