Arterial Blood Gas With Oxyhemoglobin

Abbrev Code:BGAOB   
Order Code:LAB4561Order Name:Blood Gas Arterial and OXYHGB
Synonyms:ABG; Arterial Blood Gas; Oxygen Saturation; Oxyhemoglobin; pH; pCO2; pO2
Methodology:Specific electrodes (pH, pCO2, pO2); spectrophotometric analysis of hemolysate: %OxyHb = cOxyHb/ctHb; %O2Sat = cOxyHb/(ctHb -[cCOHb + cMetHb])
CPT Codes: 82805 x1
Test Includes:pH, pCO2, pO2, derived HCO3, oxyhemoglobin
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:Whole blood sodium, potassium, chloride, CO2, ionized calcium, lactate and glucose may be ordered on this specimen. Provide FIO2 on request form. Contact Respiratory Therapy for arterial collection.

Collection Instructions

Optimal Volume:1 mL
Minimum\Peds Volume:0.5 mL (3 mL syringe); 0.2 mL (tuberculin syringe)
Container:Dry heparin syringe
Collection Instructions:
UMMC East Bank only: Place sample on ice if analysis may be more than 30 minutes from time of collection.
All Other Sites: DO NOT COLLECT ON ICE. Sample must be received within 30 minutes of collection.

Specimens should be free of air bubbles. Deliver to the laboratory immediately, if received within 30 minutes, ice is not required.  
Arterial Puncture: Use VENTED, dry heparin syringe. Adjust syringe plunger to desired fill volume (0.5 mL). Remove needle sheath. Prepare puncture site and perform puncture. Syringe fills when artery is punctured, and "seals" when filled to pre-selected volume. Withdraw needle, remove any bubbles present and mix syringe thoroughly.
Note: If using vented syringe for collection from vein or vascular device, push plunger all the way in before starting procedure. Aspirate sample as with non-vented syringe by placing thumb over center hole of plunger.

Processing and Shipping

Specimen Processing:Do not store.
Shipping Instructions:Ship immediately; if received within 30 minutes, ice is not required. Ship on wet ice to arrive within 2 hours.
UMMC, FNMC,FLMC, CSC Mpls: Do not send in PTS.
FSH only: DO NOT COLLECT ON ICE, must arrive in laboratory within 30 minutes.
Stability:Whole blood potassium is stable at room temperature for 2 hours. Whole blood potassium is stable on ice/gel packs for 30 minutes.
Test Performed at or Referral Lab Chemistry  (CSC Maple Grove, CSC Mpls, Grand Itasca, Lakes, Northland, Range, Ridges, Southdale, UMMC East Bank, UMMC West NICU, UMMC/UMMCH-West Bank)


Critical Range:Whole Blood Testing Critical Values and Reference Ranges
Reference Range:Whole Blood Testing Critical Values and Reference Ranges
Use:O2 Saturation vs Oxyhemoglobin

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