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Common Laboratory (LAB) Values [ M - N - O ]
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< M - N - O >
Lab (Specimen)
Conventional Units
SI Units
Magnesium
(serum)
1.5 - 2.4 mEq/L
Critical value:
<1.0 mEq/L and >4.7 mEq/L
0.75 - 1.2 mmol/L
Critical value:
<0.5 mmol/L
and >2.35 mmol/L
Mercury
(blood)
< 1 µg/dL
< 50 nmol/L
Methemoglobin
(blood)
<2% of total Hb
<0.02 of total Hb
Myelin basic protein
(CSF)
<4 ng/mL
<4 µg/L
Myoglobin
(serum)
< 55 ng/mL
<55 µg/L
Osmolality
(serum)
278 - 305 mOsm/kg
278 - 305 mmol/kg
Osmolality
(urine)
50 - 1200 mOsm/kg
50 - 1200 mmol/kg
Oxalate
(urine)
</= 40 mg/day
</= 456 µmol/day
Important Notes
>
Unless noted, all values are for adults.
>
All laboratory values listed are method dependent (Methods include: immunoassay, colorimetry, electrophoresis, HPLC, etc).
>
Values may vary between laboratories.
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