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Hypophosphatemia

Definition

Hypophosphatemia is a low level of phosphorus in the blood.

Alternative Names

Low blood phosphate; Phosphate - low

Causes, incidence, and risk factors

The following may cause hypophosphatemia, including:

  • Alcoholism
  • Antacids
  • Certain medicines including acetazolamide, foscarnet, imatinib, pentamidine, and sorafenib
  • Fanconi syndrome
  • Starvation
  • Too little vitamin D
  • Overactive parathyroid gland (hyperparathyroidism)

Symptoms

  • Bone pain
  • Confusion
  • Muscle weakness

Signs and tests

The doctor or nurse will examine you.

The following tests may be done:

  • Kidney function tests
  • Vitamin K blood test

Exam and testing may show:

Treatment

Treatment depends on the cause. Phosphate can be given by mouth or through a vein (IV).

Support Groups

Expectations (prognosis)

How well you do depends on what is causing the condition.

Complications

Calling your health care provider

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

Prevention

References

Yu ASL. Disorders of magnesium and phosphorous. In: Goldman L, Schafer AI, eds. . 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 121.

Media

    Encyclopedia content is provided as information only and not intended to replace the advice and instruction from your personal physician.