Prothrombin time (PT/INR) clotting test in Chattanooga, TN-GA
In Chattanooga, TN-GA, 1 hospital lists a cash price for Prothrombin time (PT/INR) clotting test: from $6.86 to $45.41, with a median of $45.41.
Cash prices at 1 facility for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between Jan 25, 2026 and Jan 25, 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 Chattanooga, TN-GA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Erlanger Health lowest Chattanooga, TN CHG PROTHROMBIN TIME | $6.86 | $13.00 | 47% | Jan 25, 2026 source file |
| Erlanger Health Chattanooga, TN HC Pbc Prothrombin Time | $45.41 | $86.00 | 47% | Jan 25, 2026 source file |
| Erlanger Health Chattanooga, TN HC Prothrombin Time | $45.41 | $86.00 | 47% | Jan 25, 2026 source file |
Outpatient: lowest $6.86, median $45.41, highest $45.41 — a 6.6× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $45.41. 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
The prothrombin time (PT) test measures how long it takes blood to clot, and is reported with the INR, a standardized number. It is used to monitor warfarin and to check clotting before surgery or with liver disease.
What the price covers
The price usually covers the PT and INR result. The blood draw is often a separate charge; a fingerstick home or clinic INR check may be billed differently.