Table 1

Patient Demographics (n = 20)

VariableaValue
Median age, yr (IQR)52 (43–58)
No. (%) female8 (40)
Race or ethnicity, no. (%)
 White8 (40)
 African-American5 (25)
 Latino3 (15)
 Asian2 (10)
 Other2 (10)
Significant cardiac history, no. (%)
 Hypertension11 (55)
 Diabetes mellitus5 (25)
 Heart failure1 (5)
 Atrial fibrillation1 (5)
 Other7 (35)
Chief complaint, no. (%)
 Abdominal pain6 (30)
 Nausea, vomiting, or diarrhea4 (20)
 Dizziness2 (10)
 Other8 (40)
Pertinent laboratory values, median (IQR)
 Hemoglobin (g/dL) (n = 19)12.3 (11.2–13.9)
 Hematocrit (%) (n = 19)37.3 (35.1–42.5)
 Serum calcium (mg/dL) (n = 14)9.2 (8.8–9.5)
 Serum potassium (meq/L) (n = 19)4.3 (3.7–4.7)
Disposition, no. (%)
 Admitted to hospital (unit other than ICU)11 (55)
 Admitted to ICU1 (5)
 Discharged from ED8 (40)
  • a IQR = interquartile range, ICU = intensive care unit, ED = emergency department.