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	About Us Patient Services Outreach Physician/ Client Services Collection Info Testing Test Directory Technical Updates Employment		Laboratory Test Directory Procedure Name: Ammonia Level Ulticare Name: Ammonia   Testing Info: Testing Location Specimen Type Collection Container Optional Container Preferred Volume Minimum Volume Chemistry Plasma EDTA Purple Top EDTA Pink Top 4.0 mL 1.0 mL Specimen Processing: Spec. Type Optimal Volume Minimum Volume Processing Info Storage Info Sample Stability Shipping Instructions Reference Lab Setup Plasma 1.0 mL 0.5 mL Transport on ice. Refrigerate   Refrigerate   Reference Ranges: Parameter Sex Patient Age Reference Range Ammonia All 0 - 14 days 56 - 92 umol/L Ammonia All 15 - 28 days 64 - 107 umol/L Ammonia All 29 days to 18 years 21 - 50 umol/L Ammonia All 18 years + 11 - 35 umol/L L / CPT Codes: Lab Service Code(s)/(Qty): CPT Code(s): 0406L0412(1) 82140 Additional Details: Collection Instructions: Samples collected for Ammonia analysis should be non hemolyzed EDTA (purple top tube) plasma collected by standard venipuncture technique. CAPILLARY (fingerstick or heelstick) SAMPLES SHOULD BE AVOIDED! Inhouse specimens must be place in wet ice immediately after collection. Separate plasma and freeze within 30 minutes or deliver to the laboratory immediately. Outreach specimens: Centrifuge specimen, separate plasma from cells, and freeze plasma within 30 minutes of collection. Plasma is stable for 2 hours if kept on ice or refrigerated. If greater than 2 hours, freeze plasma and transport on dry ice. Test Availability: Continuous Turnaround Time: Routine: 2 hours from receipt in lab

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