Report #2897753

Received May 25, 2026

Office visit

Reports are unverified and do not show that a vaccine caused an event. Full disclaimer

Overview

Sex: Female
Age: 72 yrs
State: CA
Recovered: Recovered
Vaccinated: Sep 15, 2022
Onset: Sep 25, 2022
Days to onset: 10
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
COVID19	COVID19 (COVID19 (MODERNA))	MODERNA	3	—	IM / AR

Symptoms (8)

Blood sodium decreasedEndotracheal intubationGeneralised tonic-clonic seizureHyponatraemiaInappropriate antidiuretic hormone secretionIntensive careLoss of consciousnessUrine sodium increased

Symptom narrative

Severe hyponatremia to 112 in a patient that previously had normal sodium levels. The severe hyponatremia led to grand mal seizure and loss of consciousness. Patient had to be intubated and was hospitalized in ICU for 4 days.

Current illness

None

Medical history

Obesity and mild hypertension

Other medications

None

Allergies

None

Lab data

Sodium of 112 - Sept 25, 2022, Urine osmolality was greater than serum osmolality with high urine sodium. Suggestive of new onset SIADH.