Prothrombin time (PT/INR) clotting test in Winston-Salem, NC
In Winston-Salem, NC, 3 hospitals list a cash price for Prothrombin time (PT/INR) clotting test: from $9.50 to $35.00, with a median of $10.50. The lowest listed price is at North Carolina Baptist Hospital — $1.00 less than the median here. Across North Carolina, the median is $45.92 at 37 hospitals.
Cash prices at 3 facilities across 3 cities for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 24, 2026; the hospital files themselves were last updated between Oct 8, 2025 and Oct 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 Winston-Salem, NC.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| North Carolina Baptist Hospital lowest Bermuda Run, NC HC PROTHROMBIN TIME | $9.50 | $19.00 | 50% | Oct 21, 2025 source file |
| North Carolina Baptist Hospital Winston Salem, NC HC PROTHROMBIN TIME | $10.50 | $21.00 | 50% | Oct 8, 2025 source file |
| Lexington Medical Center Lexington, NC HC PROTHROMBIN TIME | $35.00 | $70.00 | 50% | Oct 8, 2025 source file |
Outpatient: lowest $9.50, median $10.50, highest $35.00 — a 3.7× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $10.50. 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.