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Hospital and Internal Medicine Podcast

Hyponatremia etiology by history and physical

Hospital and Internal Medicine Podcast

Gil Porat, M.D., FACP, CPT

Health & Fitness, Fitness, Science, Health & Fitness:medicine, Medicine

4.7587 Ratings

🗓️ 23 December 2020

⏱️ 30 minutes

🧾️ Download transcript

Summary

Hyponatremia remains a challenging topic for many because they are trying to memorize algorithms and numbers. You can usually nail the etiology by history & physical and a brief chart review.

Transcript

Click on a timestamp to play from that location

0:00.0

You know how you get to that point in medicine rather early in your career where after about

0:05.9

15 minutes with a certain person, you know that the only dose of opioid that's going to get

0:12.0

them out of 10 out of 10 pain is a dose 2 milligrams short of the fatal dose?

0:18.6

And that intuition is kind of how I am with hyponetremia for the majority of my patients,

0:23.6

and it took me a while to get there, meaning I am pretty darn accurate just by a good

0:29.2

history and physical and often chart review for figuring out what is causing the problem

0:35.3

without doing a bunch of labs. That's not to say there aren't times where I do

0:40.4

need to check a bunch of labs other than the basic ones that have already been completed, but subjectively,

0:45.6

I feel that's less than 20% of the time I need to do that. And I think the reason there is such a

0:51.7

failure for people to understand hyponatremia, even after they feel like they spend a lot of time trying to learn it, is that often the way it is taught academically doesn't build any intuition. So I think we got to move away from that kind of algorithmic teaching and thinking in this specific topic. There are times where I still

1:13.7

access some algorithms on this, but usually don't need to and still get it right. And my residents

1:21.3

tell me this all the time that they just feel like this is one of the harder topics for them

1:26.1

to comprehend and learn. And just like I think

1:29.2

it's time to congratulate drugs for winning the war on drugs, I do think it's time to move away from

1:34.5

a purely numbers thought process of hyponatremia. Not that's ever been purely numbers, but you get

1:40.3

what I mean. It's a lot of serum osmality and urine sodiums and all these things.

1:46.2

I'm going to talk about just a little bit, but often just the basic labs you have not only get you started,

1:53.1

but ultimately you don't have a lot of time to make a decision to wait on people to urinate and the nurse to collect it and the lab to run it.

2:05.6

And particularly you to remember to look at all those things in between your next 10 patients.

2:11.6

And if you learn hyponetremia intuitively, one, I think you'll feel very comfortable rarely using a nephrologist to consult on hyponetremia intuitively one, I think you'll feel very comfortable rarely using a

2:19.4

nephrologist to consult on hyponetremia.

2:22.3

It's definitely happened where I do need a nephrologist, but usually that's because

...

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