Cold and Flu Season Can Be a Monster

Flu & Cold Season Can Be A Monster

Help us protect our patients, families and staff from RSV and the flu by following these visitation restrictions currently in effect.

  • No visitors under the age of 12 are allowed in patient care areas.
  • Please do not visit patients if you are experiencing fever, vomiting, diarrhea or cold or flu-like symptoms.

Find A Test

Name of Test
Thyroxine (T4) Free, Dialysis/Mass Spectrometry RefLab
Alternate Names
501902 LC
SoftLab Order Code
Epic Order Name
Thyroxine (T4) Free, Dialysis/Mass Spectrometry RefLab
Epic Order ID
Sample Type
Serum or Plasma
Collection Container
SST (Gold Top Serum Separator Tube) or Lavender (EDTA)
Collecting Volume
2.0 ml
Minimum Collecting Volume
1.0 ml, pediatric volume is 0.8 ml (will not permit repeat testing)
Storage or Stability
Serum or plasma must be separated from cells within 45 minutes of venipuncture and frozen
Not Available STAT
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