Prothrombin time (PT/INR) clotting test in Knoxville, TN — inpatient
In Knoxville, TN, 1 hospital lists a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $5.67 to $5.67, with a median of $5.67.
Cash prices at 1 facility for code 85610, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Aug 5, 2026 and Aug 5, 2026.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Parkwest Medical Center Louisville, TN PROTHROMBIN TIME | $5.67 | $9.00 | 37% | Aug 5, 2026 source file |
Inpatient: lowest $5.67, median $5.67, highest $5.67.
As an outpatient, the same code is billed by 6 facilities here, median $13.20 — that is the price to compare if you are not being admitted.
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.
5 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 85610 ($32.92). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Parkwest Medical Center Knoxville, TNPROTHROMBIN TIME | $2.70 | file |
| Fort Sanders Regional Medical Center Knoxville, TNPROTHROMBIN TIME | $2.97 | file |
| Methodist Medical Center of Oak Ridge Oak Ridge, TNPROTHROMBIN TIME | $2.97 | file |
| Fort Loudoun Medical Center Lenoir City, TNPROTHROMBIN TIME | $2.97 | file |
| Roane County Medical Center Harriman, TNPROTHROMBIN TIME | $2.97 | file |