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HelpOsmolality, serum
Collection Requirements
Source: blood
Container(s):
- Preferred: Lithium heparin mint green gel
- Acceptable: Red or Red gel
Volume: 1 mL in vacutainer or 600 uL in microtainer
Turn Around Time
STAT: 1 hour
Routine: 2-4 hours
Availability
STAT
Routine
Lab Processing Instructions
Specimen: plasma or serum
Spin, separate, and refrigerate
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Chemistry
Instrumentation/Methodology
Freezing point osmometry
Reference Ranges
| Age (days) | Reference Range (mOsm/Kg) |
|---|---|
| 0-3 | 266 - 296 |
| >3 | 275 - 296 |
CPT
83930