Hypophosphatemia

Definition

Hypophosphatemia is a low level of phosphorus in the blood.

Alternative Names

Low blood phosphate; Phosphate - low

Causes, incidence, and risk factors

Various conditions may cause hypophosphatemia, including:

• Alcoholism
• Starvation
• Vitamin D deficiency

Symptoms

• Anemia due to excess destruction of red blood cells (hemolytic anemia)
• Confusion
• Heart muscle damage (cardiomyopathy)
• Muscle weakness

Treatment

Treating the cause of hypophosphatemia is needed to correct the phosphorous deficiency. Phosphate can be given by mouth or through a vein.

Expectations (prognosis)

The outlook depends on the disease causing the condition.

Calling your health care provider

Call your health care provider if you have muscle weakness or confusion.

References

Yu ASL. Disorders of magnesium and phosphorous. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 120.