Free T4 test cost in Shreveport, LA
In Shreveport-Bossier City, LA, 1 hospital lists a cash price for free T4 (free thyroxine) thyroid blood test: from $21.65 to $21.65, with a median of $21.65. Across Louisiana, the median is $54.50 at 29 hospitals.
Cash prices at 1 facility for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 28, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Shreveport-Bossier City, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Willis Knighton Medical Center lowest Shreveport, LA · (318) 212-4000 T4 Thyroxine Free By Dial-Lc | $21.65 | $27.06 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 Thyroxine Free-Q | $37.66 | $47.07 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 Thyroxine Free-Ar | $43.61 | $54.51 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 (Thyroxine) Free | $45.09 | $56.36 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 Thyroxine Free By Dial-Q | $46.07 | $57.59 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 Thyroxine Free By Dial-M | $46.31 | $57.89 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 T4 (Thyroxine) Free Direct-Lc | $85.80 | $107.25 | — | 20% | Apr 1, 2026 source file |
Outpatient: lowest $21.65, median $21.65, highest $21.65.
As an inpatient, the same code is billed by 1 facility here, median $21.65. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.