Partial thromboplastin time (PTT) clotting test in Chattanooga, TN-GA
In Chattanooga, TN-GA, 1 hospital lists a cash price for Partial thromboplastin time (PTT) clotting test: from $9.50 to $89.76, with a median of $89.76.
Cash prices at 1 facility for code 85730, 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 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD | $9.50 | $18.00 | 47% | Jan 25, 2026 source file |
| Erlanger Health Chattanooga, TN HC Pbc Ptt | $89.76 | $170.00 | 47% | Jan 25, 2026 source file |
| Erlanger Health Chattanooga, TN HC Ptt Part Thromboplastin | $89.76 | $170.00 | 47% | Jan 25, 2026 source file |
Outpatient: lowest $9.50, median $89.76, highest $89.76 — a 9.4× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $89.76. 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 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.