Test Findings
 

Hyperphosphataemia

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Overview

    • Look For

    • Serum phosphate >1.5 mmol/L.

Aetiology

    • Causes of Hyperphosphataemia

    • Excessive Phosphate Intake / Production

    • Phosphate replacement
    • Rhabdomyolysis
    • Tumour lysis syndrome
    • Reduced Excretion

    • Renal failure - acute or chronic
    • Hypoparathyroidism
    • Vitamin D deficiency
    • Bisphosphonates
    • Osteoblastic metastases

Clinical Features

    • Signs and Symptoms

      Generally asymptomatic unless severe.
    • Hypocalcaemia - hyperreflexia, tetany, seizures, heart failure
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