Partial thromboplastin time (PTT) clotting test in Washington-Arlington-Alexandria, DC-VA-MD-WV
In Washington-Arlington-Alexandria, DC-VA-MD-WV, 7 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test: from $52.50 to $112.50, with a median of $79.00. The lowest listed price is at Jefferson Medical Center.
Cash prices at 7 facilities across 6 cities for code 85730, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Washington-Arlington-Alexandria, DC-VA-MD-WV.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Jefferson Medical Center lowest Ranson, WV THROMBOPLASTIN TIME PARTIAL | $52.50 | $105.00 | 50% | — source file |
| Inova Alexandria Hospital Alexandria, VA HC THROMBOPLASTIN TIME PRTL (PTT) PLSMA/WHL | $79.00 | $158.00 | 50% | — source file |
| Inova Fair Oaks Hospital Fairfax, VA HC THROMBOPLASTIN TIME PRTL (PTT) PLSMA/WHL | $79.00 | $158.00 | 50% | — source file |
| Inova Fairfax Hospital Falls Church, VA HC THROMBOPLASTIN TIME PRTL (PTT) PLSMA/WHL | $79.00 | $158.00 | 50% | — source file |
| Inova Loudoun Hospital Leesburg, VA HC THROMBOPLASTIN TIME PRTL (PTT) PLSMA/WHL | $79.00 | $158.00 | 50% | — source file |
| Inova Mount Vernon Hospital Alexandria, VA HC THROMBOPLASTIN TIME PRTL (PTT) PLSMA/WHL | $79.00 | $158.00 | 50% | — source file |
| Potomac Hospital Corporation of Prince William Woodbridge, VA Chgl Ptt | $112.50 | $225.00 | 50% | Apr 1, 2026 source file |
Outpatient: lowest $52.50, median $79.00, highest $112.50 — a 2.1× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $79.00. 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.
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.
| Potomac Hospital Corporation of Prince William Woodbridge, VAChgl (Qu) Von Willebrand Screen, S/O | $4.50 | file |