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Ammonia Level

Collection Requirements

Source: blood
Container(s): Pre-chill tube

  • Preferred: Sodium heparin green
  • Acceptable: Lithium heparin mint green gel

Volume: 1 mL in vacutainer or 400 uL in microtainer

Special Instructions

Place on ice and send to the lab immediately
Must be processed within 15 minutes of collection

Turn Around Time

STAT: 1 hour
Routine: 2-4 hours

Availability

STAT
Routine

Lab Processing Instructions

Specimen: plasma
Spin, separate, and freeze if not tested immediately

  • Specimens not received on ice must be spun within 15 minutes of collection
  • Specimens received on ice must be spun within 1 hour of collection

 

Performing Laboratory

Adele Hall

Adele Hall Lab Section

Chemistry

Instrumentation/Methodology

Vitros

Critical Values

>200 umol/L

Reference Ranges

Age Reference Range (umol/L)
0-2 weeks 15 - 92
2 weeks - 2 years 10 - 62
>2 years 4 - 33

 

CPT

82140