, Hypercalcemia Nursing Study Bundle
NCLEX Review & Memory Guide
Original study material created for nursing students
Understanding Hypercalcemia
What Is Hypercalcemia?
Hypercalcemia occurs when the calcium level in the blood rises above the normal range, usually
greater than 10.5 mg/dL. Calcium is important for muscle contraction, nerve function, blood
clotting, and bone health. When calcium becomes too high, many body systems begin to slow
down.
Quick Memory Tip
"Too much calcium = everything moves slower."
Think:
• Slow bowels
• Slow thinking
• Slow muscles
• Slow reflexes
Common Causes of Hypercalcemia
Endocrine Causes
• Hyperparathyroidism
• Excess parathyroid hormone (PTH)
Cancer-Related Causes
• Bone metastasis
• Malignancies that release PTH-related proteins
Medication Causes
• Thiazide diuretics
• Excess calcium supplements