AM Report 11/7/16: Primary Polydipsia

Remember to check plasma osmolality first!


Next evaluate volume status!


If a patient is Euvolemic – evaluate urine osmolality and sodium


Practical approach to hyponatremia:

1.What is the normal/abnormal physiology?

2.Is it “true” hypo-osmolar hyponatremia?

  • Measure plasma osmolality

3.What is the volume and ADH status?

  • Urine Na and Urine Osmolality

4.Is it symptomatic?

5.What is my treatment?

  • Depends on volume status, ADH status, and +/- symptoms
  • Determine goal of correction
  • Avoid overcorrection

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s