A 27-year-old man with type 2 diabetes presented with a 5-day history of steadily worsening, moderate-severity abdominal pain. Five or six times a day, the pain was followed by watery diarrhea. Fever, sore throat, myalgias, influenza-like symptoms, or shortness of breath were not present. A review of systems revealed a dry cough that lasted around the same amount of time.
Examination
A patient in discomfort due to abdominal pain was discovered during a physical examination. There was slight abdominal tenderness in the abdomen, but no guarding, rigidity, or rebound. The inspection of the chest revealed coarse bibasal crackles. The rest of the physical examination was unremarkable.
Biochemical investigations showed normocytic anemia, thrombocytopenia, and inflammatory markers that were not elevated. Asymptomatic hyponatremia was verified by two additional tests. The endocrine panel, liver enzymes, and renal function were all unremarkable. Hyponatremia was most likely caused by the syndrome of inadequate antidiuretic hormone secretion (SIADH).
The patient was diagnosed to have been infected with COVID-19. Another differential diagnosis made was gastroenteritis considering the patients symptoms and examination.
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