S6 Ep. 5: Saltwater, part 1 (Hyponatremia)

Today, we're tackling the absolutely mammoth topic of hyponatremia after JAMA recently published a fantastic article about its diagnosis and management. We start with a review of some relevant physiology before talking about the ways in which hyponatremia can present, and the approach to determining the underlying cause of the hyponatremia.In this episode, we specifically talk about determining whether the patient has either hypertonic, isotonic or hypotonic hyponatremia, as well as a discussion of the causes of hypertonic and isotonic hyponatremia. From here, we go on to focus on the relevant history and examination when working up a patient with hypotonic hyponatremia in order to further sub classify their hypotonic hyponatremia as being hypovolaemic, euvolaemic or hypervolaemic. Resources for today's episode:Diagnosis and Management of Hyponatremia - A Review by Adrogue, H.J., Tucker, B.M. and Madras, N.E. (JAMA) Hyponatremia StatPearlsUp to Date articles:Causes of hyponatremia without hypotonicityCauses of hypotonic hyponatremia in adultsDiagnostic evaluation of adults with hyponatremiaOverview of treatment of hyponatremia in adultsPathophysiology and aetiology of the syndrome of inappropriate antidiuretic hormone secretion (SIADH)Treatment of hyponatremia: Syndrome of inappropriate antidiuretic hormone secretion (SIADH) and reset osmostatCerebral salt wastingFeel free to email us at [email protected] if you have any questions, comments or suggestions. We love hearing from you! And don't forget to claim CPD for listening if you are a consultant or fellow. Log us as a learning session which you can find within the knowledge and skills division, and as evidence upload a screenshot of the podcast episode. Thanks for listening, and happy studying!