# Severe Hyponatremia (96 mmol/L) Secondary to Primary Polydipsia and Pneumonia

## TL;DR

A 63-year-old man with severe low sodium levels and pneumonia was successfully treated with intensive care and saline.

## Contribution

This case report documents one of the lowest recorded sodium levels successfully treated in a patient with pneumonia.

## Key findings

- The patient had a sodium level of 96 mmol/L, one of the lowest ever recorded.
- Treatment with hypertonic saline and antibiotics led to recovery and discharge.
- The patient was successfully extubated after four days of treatment.

## Abstract

A 63-year-old man who presented to the hospital with altered mental status and decreased responsiveness was found to have severe symptomatic hyponatremia with a sodium level of 96 mmol/L and pneumonia. The patient was admitted to the medical intensive care unit for septic shock and acute severe hyponatremia. He was intubated for airway protection, and treated with 3% hypertonic saline bolus and antibiotics. After four days, sodium levels were corrected to 128 mmol/L, and the patient was extubated and downgraded to the medical floor. This case demonstrates one of the lowest recorded sodium lab values ever and the patient was successfully treated and discharged home with appropriate outpatient appointments.