Label Mnemonic: LACTC
Epic Lab Code: LAB95
Downtime Form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Critical Care - Relocated to Core Laboratory
6240 RCP
Whole Blood
Collection Medium:
Heparinized syringe or Green top tube (Na Heparin)
0.5 mL in Lithium/Sodium Heparin syringes or Sodium Heparin Vacutainer® tube
Delivery Instructions:
Deliver to laboratory immediately after collection. If > 30 minutes, place on ice.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
10 minutes (upon receipt in laboratory)
Reference Range:
0.5 - 2.0 mEq/L (16 years and older)
0.5 - 2.2 mEq/L (less than 16 years old)

Critical value: >5.0 mEq/L
Can be ordered with blood gases (0.5 mL blood required); all needles must be removed from the syringe before delivery.

Reference range for adults (18+ years old) changed October 11, 2016.

References: Singer M et al. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA 2016;315 (8):801-810.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).
Ion Selective Electrode
CPT Code: