top of page

Free T4 Test in Mesa


Free T4 — the usable thyroid hormone, standard partner to TSH

15 min
25 US dollars
East University Drive

Service Description

Walk in or book online for your Free T4 Test in Mesa today. About This Test T4 is the hormone your thyroid actually makes. Most of it rides through your bloodstream attached to carrier proteins, locked up and unusable. Only a small unbound fraction is free for your body to convert and use. Free T4 measures that fraction. It is the standard partner to a TSH test, because TSH tells you what your brain is asking for and Free T4 tells you what your thyroid is delivering. What's Included Free T4 — thyroxine, measured in the unbound form available to your body. Who This Test Is For Anyone following up on a TSH result that came back high or low. People on levothyroxine who need to know whether their dose is right. Anyone whose provider ordered a free T4 rather than a total T4. Pregnant patients or anyone on estrogen therapy, where carrier protein levels shift and total T4 becomes hard to read. What to Expect & Preparation Preparation: No fasting required. If you take thyroid medication, come in before you take your dose for the day. Your Lab Visit: A quick, 15-minute blood draw. Walk in Monday through Friday, or book online. No doctor's order and no insurance needed — we generate the lab order at check-in. FSA and HSA cards accepted. Turnaround Time: Your results are posted to your secure patient portal within 2 to 3 business days. Free T4 is usually run with TSH. If you want both plus the active hormone, the Thyroid Panel covers TSH, Free T3, and Free T4 together. Note on Turnaround Times: Processing times are estimates and are not guaranteed. Reference laboratories may require extra time for confirmatory testing, sample re-runs, holidays, or unexpected equipment delays.


Cancellation Policy

Testing Policy & Important Information Scheduling Requirements If you received a test code from your employer for drug testing or a third party: Do NOT book online Drug Testing hours: Monday-Friday 7 AM - 5 PM Walk in with your code during these hours Ulta Lab Tests and TB Gold (QuantiFERON) for pre-employment testing with a test code: Must call the office to schedule: (602) 428-4557 Cannot be self-booked online Saturday: By appointment only. No walk-ins on Saturday. Payment & Refunds All sales are final. If you pay for a test online and later realize you have an employer code or third-party payment, no refunds will be issued — store credit only. Recollections: Blood work is sometimes delayed in transit, lost, or needs to be recollected. While we are not responsible for laboratory delays or lost specimens, we will recollect your sample for free if needed. Cancellations & Rescheduling 24-hour cancellation notice required. Cancellations made less than 24 hours before your appointment may be subject to a cancellation fee. We may need to reschedule appointments due to unforeseen circumstances and will contact you as soon as possible. Result Turnaround Times Processing times begin when our laboratory partner receives your specimen: Most tests (drug screening, basic blood work): 24-48 hours QuantiFERON-TB Gold Plus: 3-5 business days Hair follicle drug testing: 3-5 business days Specialized panels: 3-7 business days Time-sensitive testing? Schedule at least 7-10 business days in advance and inform our staff of your deadline at check-in.


Contact Details

  • 7165 E University Dr #155, Mesa, Arizona 85207, USA

    +16024284557

    info@quicktestservices.com


bottom of page