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Unit Code 8859:
T4 (Thyroxine), Free by Dialysis, Serum

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Specimen Required

Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin

down and send 2 mL of serum refrigerated.

Note:    Include name and telephone number of contact physician

                on request form.

Transport Temperature

Refrig/Frozen OK\Ambient NO

Reject Due To

Specimens Other Than:                 Serum

Anticoagulants Other Than:           NA

Hemolysis:                                          Grossly hemolyzed

Thawing:                                              Warm reject; Cold OK

Lipemia:                                               Grossly lipemic

Day(s) and Time(s) Test Performed

Monday, Wednesday; 3 p.m.

Key