Tests:Ammonia, Blood: Difference between revisions

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Tests:Ammonia, Blood
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|Preferrred
|Preferrred
|4 mL EDTA (K2E) <span style="background: #ba55d3"> Purple top </span> on ice.
|4 mL EDTA (K2E) <span style="background: #ba55d3"> Purple-Top </span> on ice.
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|-
|Acceptable
|Acceptable
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|Pediatric Requirements
|Pediatric Requirements
| 600uL EDTA (K2E) <span style="background: #ffc0cb"> Pink top </span> Microtainer on ice. 
| 600uL EDTA (K2E) <span style="background: #ffc0cb"> Pink-Top </span> Microtainer on ice. 
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|-
! colspan="2" |
! colspan="2" |
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|Sample Type
|Sample Type
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|Plasma
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|Minimum Volume
|Minimum Volume
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|Reference Intervals
|Reference Intervals
|FEMALE: 11-51 umol/L MALE 16-60 umol/L   
|FEMALE: 11-51 umol/L  
MALE 16-60 umol/L   
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|Test Method
|Test Method
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|Patient Preparation  
|Patient Preparation  
|Ideally patient fasted >6 hours. No fist clenching. 
|Ideally patient fasted >6 hours.  
No fist clenching. 
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! colspan="2" |
! colspan="2" |

Revision as of 11:00, 31 January 2025


Overview

Department Biochemistry
Test Code WAMM
Synonyms NH3 
Turnaround Time 3 hours
Stability – Add test Cannot be added on.

Specimen Requirements

Specimen Type Plasma
Preferrred 4 mL EDTA (K2E) Purple-Top on ice.
Acceptable
Specimen Transportation On ice. Sample must be received at lab within 15 minutes of collection.      
Pediatric Requirements 600uL EDTA (K2E) Pink-Top Microtainer on ice. 

Aliquot Requirements

Sample Type Plasma
Minimum Volume 200 uL 
Aliquot Transportation Frozen 

Clinical Information

Reference Intervals FEMALE: 11-51 umol/L

MALE 16-60 umol/L   

Test Method Abbott Alinity C. Enzymatic method. 
Advanced Notice Please notify Biochemistry extension 7881  
Patient Preparation   Ideally patient fasted >6 hours.

No fist clenching. 

Comments

Specimen must be centrifuged at 4°C IMMEDIATELY after receipt. 

False high values are obtained after muscular exercise.

Please notify the laboratory if patient is on Sulfasalazine/Sulfapyridine medications as these may interfere with this method