reference ranges (chem)

135-145

serum sodium (mmol/L)

3.5-5.0

serum potassium (mmol/L)

275-295

serum osmolality (mOsm/kg)

301-1090

urine osmolality (mOsm/kg)

<10-15

osmolal gap (mOsm/kg)

6.1

bicarbonate-carbonic acid buffer pKa

7.35-7.45

arterial blood pH

35-45

arterial blood pCO2 (mmHg)

0.0307

conversion factor for arterial blood CO2 (mmol/L per mmHg)

20:1

ratio of blood bicarb to carbonic acid

22-26

arterial blood bicarbonate concentration (mmol/L)

23-27

total arterial blood CO2 (mmol/L)

80-110

arterial blood pO2 (mmHg)

>95

arterial SO₂ (%)

4-6

HgbA1c (%)

10-20

anion gap (mmol/L)

20

arterial blood pCO2 in concentration units (mmol/L)

15-65

serum PTH (pg/mL)

6-20

serum BUN (mg/dL)

1

serum creatinine (mg/dL)

10-20:1

BUN:creatinine ratio

0.2-1

total serum bilirubin (mg/dL)

0-0.2

serum direct bilirubin (mg/dL)

0.2-0.8

serum indirect bilirubin (mg/dL)

0

serum delta bilirubin (mg/dL)

8.6-10.3

serum total calcium

4.6-5.3

serum free ionized calcium

2.4-4.5

serum phosphate

1.7-2.4

serum magnesium

140-200

cholesterol

60-150

triglycerides

40-75

HDL cholesterol

50-130

LDL cholesterol

5-40

VLDL cholesterol

3.43-4.97

cardiac risk (cholesterol/HDL)

3.5-5

albumin (g/dL)

6.5-8.3

total serum protein (g/dL)

15-45

CSF total protein (mg/dL)