Hypocalcemia

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Introduction

Hypocalcemia can be a medical emergency.

 

 

 

The Case of...

a simple case introducing clincial presentation and calling for a differential diagnosis to get students thinking.

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Causes and Risk Factors

It can be caused by PTH disorders or by problems with vitamin D.

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Pathophysiology

 

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Signs and Symptoms

  • history
  • physical exam

History

Nervous and musculoskeletal systems

 

It can lead to paresthesias, neuromuscular irritability (cramps), tetany, laryngeospasm/broncheospasm, seizures, arrhythmias, , and congestive heart failure.

 

 

 

Physical Exam

 

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Investigations

  • lab investigations
  • diagnostic imaging

Lab Investigations

 

Diagnostic Imaging

 

ECG can show

  • prolonged Q-T interval

 

Chronic calcium deficiency can lead to osteomalacia and osteoporosis.

 

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Differential Diagnosis

 

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Treatments

Pay attention to the airway and the ECG.

 

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Consequences and Course

Cararacts, and soft tissue calcification.

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Resources and References

 

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Topic Development

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