CLINICAL QUERIES: What causes hyponatremia?
Judy Sweeney RN, MSN

June 2005 
Volume 35  Number 6
Pages 18 - 18
  PDF Version Available!



    I'm caring for a 74-year-old man who had surgery for bladder cancer. He's N.P.O., receiving I.V. 0.45% sodium chloride solution, and he has an abdominal drain. He became confused and increasingly lethargic during my shift. When I notified the primary care provider, she ordered stat serum electrolytes. What was going on?—L.W., IDAHO

    Judy Sweeney, RN, MSN, replies: Hyponatremia is the most common electrolyte imbalance affecting hospitalized patients. Your patient was at particular risk because of his age, N.P.O. status, wound drainage, and the hypotonic I.V. fluid he was receiving.

    Sodium helps control interstitial and intravascular fluid volume. The normal serum sodium level is 135 to 145 mEq/liter. A patient experiences signs and symptoms of hyponatremia when serum sodium falls below 125 mEq/liter. Causes of hyponatremia include:

    * sodium loss , as from diuretics, vomiting, or wound drainage ...

Purchase Now !

To purchase this item, follow the instructions below. If you’re not already logged in, be sure to enter your login information below to ensure that your item is saved to your File Drawer after you purchase it.

Not a member? Join now for Free!

1) If you're not already logged in, enter your information below to save this item in your File Drawer for future viewing.

User name:


Forgot your user name or password?
2)  If you have a coupon or promotional code, enter it
here.(If not, just click Continue.

Digital Coupon: (optional)

3)  Click Continue to go to the next screen, where
you'll enter your payment details.

jQuery UI Accordion - Default functionality

For life-long learning and continuing professional development, come to Lippincott's NursingCenter.

Nursing Jobs Plus
Featured Jobs
Recommended CE Articles

Blunt Chest Trauma
Journal of Trauma Nursing, November/December 2014
Expires: 12/31/2016 CE:2 $21.95

The School Age Child with Congenital Heart Disease
MCN, The American Journal of Maternal/Child Nursing, January/February 2015
Expires: 2/28/2017 CE:2.5 $24.95

Understanding multiple myeloma
Nursing Made Incredibly Easy!, January/February 2015
Expires: 2/28/2017 CE:2 $21.95

More CE Articles

Subscribe to Recommended CE

Recommended Nursing Articles

Comprehensive Care: Looking Beyond the Presenting Problem
Journal of Christian Nursing, January/March 2015
Free access will expire on March 2, 2015.

Pain and Alzheimer dementia: A largely unrecognized problem
Nursing Made Incredibly Easy!, January/February 2015
Free access will expire on February 16, 2015.

Glycemic control in hospitalized patients
Nursing2015 Critical Care, January 2015
Free access will expire on February 16, 2015.

More Recommended Articles

Subscribe to Recommended Articles

Evidence Based Practice Skin Care Network NursingCenter Quick Links What’s Trending Events