Partial thromboplastin time (PTT) clotting test in Knoxville, TN — inpatient
In Knoxville, TN, 5 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test as an inpatient: from $5.28 to $10.08, with a median of $5.28. The lowest listed price is at Fort Sanders Regional Medical Center.
Cash prices at 5 facilities across 5 cities for code 85730, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Aug 5, 2026 and Aug 27, 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 Knoxville, TN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Fort Sanders Regional Medical Center lowest Knoxville, TN THROMBOPLASTIN TIME PART (PTT) | $5.28 | $16.00 | 67% | Aug 5, 2026 source file |
| Methodist Medical Center of Oak Ridge Oak Ridge, TN THROMBOPLASTIN TIME PART (PTT) | $5.28 | $16.00 | 67% | Aug 5, 2026 source file |
| Fort Loudoun Medical Center Lenoir City, TN THROMBOPLASTIN TIME PART (PTT) | $5.28 | $16.00 | 67% | Aug 27, 2026 source file |
| Roane County Medical Center Harriman, TN THROMBOPLASTIN TIME PART (PTT) | $5.28 | $16.00 | 67% | Aug 5, 2026 source file |
| Parkwest Medical Center Louisville, TN THROMBOPLASTIN TIME PART (PTT) | $10.08 | $16.00 | 37% | Aug 5, 2026 source file |
Inpatient: lowest $5.28, median $5.28, highest $10.08 — a 1.9× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $18.00 — that is the price to compare if you are not being admitted.
What it is
The partial thromboplastin time (PTT or aPTT) test measures how long it takes blood to clot through a different pathway than the PT test. It is used to check for bleeding disorders, before surgery, and to monitor heparin.
What the price covers
The price usually covers the PTT test. The blood draw is often billed separately.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 85730 ($48.56). 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, TNTHROMBOPLASTIN TIME PART (PTT) | $4.80 | file |