| Laboratory: | Clinical Biochemistry | ||||||
| Test Name: | UREA (iSTAT) - (B) 
	Test Code:
	UWB
 | ||||||
| Clinical Information: | Only available in rural Manitoba.  For WRHA and Westman Lab see Urea - (P) State whether the sample is venous or arterial. | ||||||
| Collection Devices: |  | ||||||
| Specimen Required: | Skin puncture: lancet and capillary collection tube (plain, lithium heparin, or balanced heparin for electrolytes and blood gases) Venipuncture: lithium or sodium heparin collection tubes and disposable transfer device (e.g. 1cc syringe and a 16 to 20 gauge needle) Arterial puncture: Plain syringe or blood gas syringe with heparin and labeled for the assays performed | ||||||
| Referral: | Only available at sites which perform iStat testing onsite. | ||||||
| Requisition: | |||||||
| Reference Values: | Venous & Capillary:  2.9 – 9.4 mmol/L Arterial: 2.9 – 9.4 Note: Reference ranges are specific to the Abbott iStat (POC instrument) | ||||||
| Availability: | Turn around time (TAT):  < 60 minutes | ||||||
| See Also: | |||||||
| More Information: | Interferences:
 
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