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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

Availability

STAT
Routine

Turn Around Time

STAT: 1 hour
Routine: 2-4 hours

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