Hyponatremia and Encephalopathy in a 55-Year-old Woman with Syndrome of Inappropriate Antidiuretic Hormone Secretion as an Isolated Presentation of SARS-CoV-2 Infection

24 March 2021: Articles

Unknown etiology, Challenging differential diagnosis

Andleeb Sherazi ^A* , Puneet Bedi ^A , Ehizode Udevbulu ^A , Vadim Rubin ^A , Lutfi Alasadi ^A , Samuel Spitalewitz ^A

DOI: 10.12659/AJCR.930135

Am J Case Rep 2021; 22:e930135

Table 1. Initial laboratory values in our patient.

Serum sodium	116 mEq/L	Normal range 135–145 mEq/L
Serum osmolarity	251 mOsm/kg	Normal reference range 285–295 mOsm/kg
Urine osmolarity	364 mOsm/kg	Normal range varies
Urine sodium	69 mEq/L	Normal reference range 30.0–90.0 mEq/L
Thyroid-stimulating hormone	1.1 mIU/L	Normal reference 0.465–4.680 mIU/L
Cortisol	16.7 mcg/dL	Normal range 4.46–22.70 mcg/dL
Glucose	324 mg/dL	Normal reference 70–90mg/dL