Table 2.

Inclusion and exclusion criteria for a retrospective, observational study of the hyponatremia correction calculation

Sets A–D: Number of eligible patients 31, number of data points 43, ≥18 years of age, Na <135 or >145 mmol/L, serial chemistry values available between Na1 and Na2, urinary sodium and potassium available, weights available, step-down unit or intensive care unit admission, no blood products. Set E: Number of eligible patients 15, number of data points 27, as well as all the aforementioned criteria and also the ability to calculate all sodium/potassium input and output and to keep track of all fluid infused and eliminated from the patient.