Table 2.

Association of healthcare process and pathophysiology aspects of laboratory tests with mortality outcome

Variables	Pathophysiological value		Number of test		Clock time		Time from ICU admission
	Lowest mortality	Highest mortality	Lowest mortality	Highest mortality	Lowest mortality	Highest mortality	Lowest mortality	Highest mortality
Bicarbonate (mEq/L)	20–30	<10	Not tested	3–6	0:00–6:00	18:00–24:00	Over 12 hours	Within 6 hours
Hematocrit (%)	40–50	>50	>10	3–6	0:00–6:00	6:00–8:00	Over 12 hours	Within 6 hours
Potassium (mEq/L)	3.5–4.5	5.5–8.2	6–10	3–6	0:00–6:00	6:00–8:00	Over 12 hours	Within 6 hours
BUN (mg/dL)	Not tested	80–172	1–3	>10	0:00–6:00	18:00–24:00	Over 12 hours	Within 6 hours
Glucose (mg/dL)	60–200	350–861	6–10	Not tested	0:00–6:00	18:00–24:00	Over 12 hours	Within 6 hours
WBC (K/uL)	3–10	>20	1–3	6–10	0:00–6:00	18:00–24:00	Over 12 hours	Within 6 hours
Creatinine (mg/dL)	0.5–1.5	1.95–4	1–3	>10	0:00–6:00	18:00–24:00	Over 12 hours	Within 6 hours
pH	7.35–7.45	<7.1	Not tested	3–6	14:00–18:00	6:00–8:00	Within 6 hours	Over 12 hours
Sodium (mEq/L)	135–145	150–165	3–6	Not tested	0:00–6:00	18:00–24:00	Over 12 hours	6–12 hours
Albumin (g/dL)	4–5.4	<1.5	Not tested	1–3	0:00–6:00	14:00–18:00	6–12 hours	Over 12 hours
Bilirubin (mg/dL)	<2	>8	3–6	6–10	0:00–6:00	8:00–14:00	Over 12 hours	6–12 hours

BUN, blood urea nitrogen; ICU, intensive care unit; WBC, white cell count.