Description
Why It’s Done
The test helps in:
1. Diagnosing and Monitoring Health Conditions
• Hypercalcemia (high calcium levels)
• Hypocalcemia (low calcium levels)
• Parathyroid disorders
• Kidney disease
• Certain types of cancer (e.g., bone or parathyroid tumors)
• Vitamin D or calcium metabolism issues
2. Monitoring Treatments
• Calcium or vitamin D supplements
• Medications affecting calcium levels
• Dialysis or chronic kidney disease management
3. Routine Health Checks
• Part of a metabolic panel during annual exams or pre-surgical evaluations
Preparation
1. Fasting
• Usually not required, but your doctor may ask for 8–12 hours of fasting if the test is part of a comprehensive panel.
2. Medications
Inform your doctor if you are taking:
• Calcium supplements
• Vitamin D
• Diuretics
• Antacids
• Bisphosphonates
• Lithium
• Thyroid medications
Do not stop any prescribed medication without medical advice.
3. Other Considerations
• Avoid vigorous exercise or calcium-rich foods/supplements immediately before the test unless instructed otherwise.
• Stay well hydrated for easier blood draw.
