Free T4 test cost in Little Rock, AR
In Little Rock-North Little Rock-Conway, AR, 3 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $7.78 to $56.40, with a median of $40.20. The lowest listed price is at Arkansas Childrens Hospital — $32.42 less than the median here. Across Arkansas, the median is $48.10 at 18 hospitals.
Cash prices at 3 facilities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Nov 21, 2025.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Little Rock-North Little Rock-Conway, AR.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Arkansas Childrens Hospital lowest Little Rock, AR · (501) 364-1100 ASSAY OF FREE THYROXINE | $7.78 | $8.64 | $8.64–$9.02 | 10% | — source file |
| University of Arkansas for Medical Sciences Little Rock, AR · (501) 686-5000 ASSAY OF FREE THYROXINE | $40.20 | $67.00 | $8.75–$887.00 | 40% | — source file |
| Arkansas Heart Hospital Little Rock, AR · (501) 219-7000 Free T4 Level | $56.40 | $70.50 | $41.08–$159.00 | 20% | Nov 21, 2025 source file |
| Arkansas Heart Hospital Little Rock, AR · (501) 219-7000 84439 - Free Thyroxine, FT4 | $56.40 | $70.50 | $41.08–$159.00 | 20% | Nov 21, 2025 source file |
| Arkansas Childrens Hospital Little Rock, AR · (501) 364-1100 THYROXINE (THYROID CHEMICAL); FREE | $82.53 | $91.70 | $9.02–$76.12 | 10% | — source file |
| University of Arkansas for Medical Sciences Little Rock, AR · (501) 686-5000 THYROXINE (THYROID CHEMICAL); FREE | $82.80 | $138.00 | $8.75–$887.00 | 40% | — source file |
Outpatient: lowest $7.78, median $40.20, highest $56.40 — a 7.2× difference within the same market.
Cash or insurance?
At 3 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A free T4 test measures thyroxine that is not bound to proteins, the active form of the main thyroid hormone. It is usually ordered with or after a TSH test to check for an underactive or overactive thyroid and to adjust thyroid medicine.
What the price covers
The price usually covers the free T4 test only. The blood draw and the TSH test (84443) are billed separately.