FREE TRAINING: 3 Mistakes Even Smart NPs Make Interpreting Labs

Simplified Hyponatremia Workup for New Nurse Practitioners

Sep 17, 2019

I saw a meme recently that compared hyponatremia to folding a fitted sheet— you can watch a million videos on how to do it but you're probably going to crumple it up and hope you never have to deal with it. 🤯

Luckily in primary care low sodium is easier to deal with outpatient, and doesn't have to be super complicated.

In today's video I'll be talking about low sodium, one of the top abnormal labs in primary care.

Hyponatremia involves understanding kidney function, but I've broken it down the simplest, clearest, most digestible way to give you the most helpful insight to take into your practice.

I'll bring you through the steps for the vast majority of patients you'll see, and if you need to go down the rabbit hole of workup further what we go into in this video, you'll have the tools to do so.

You'll learn:

  • How to know when your patients needs to go to the ER, and when you can work them up outpatient
  • The simplest way to remember low sodium
  • The #1 lab you should always think of when you see low sodium
  • How to know if your patient needs IV fluid (or if that'd be the worst possible thing to do for them)

QUICK NOTE: I made an error in the algorithm slide #2 (25:22 timestamp), serum uric acid is going to be LOW in SIADH and HIGHER in states of fluid overload (CHF, etc). So the opposite of what I say on that slide. So sorry about that!


(FYI: to slow down the audio speed, hit the gear symbol in the bottom right corner and change it to .75x or .5x. Closed captions are also located at the bottom R hand corner of the video.

Here's the doctor Joel Topf I mentioned, and his full book:

Once you've watched, I'd love to hear from you.

What's your top takeaway from hyponatremia?

Leave me a comment below. Be sure to share your thought directly in the comments, no links or videos as they may be removed.

Thanks so much for watching. Hang in there, and I'll see you soon.


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