Lab tests CPT 85610 Outpatient

Prothrombin time (PT/INR) clotting test in St. Johnsbury, VT

In St. Johnsbury, VT, 1 hospital lists a cash price for Prothrombin time (PT/INR) clotting test: from $6.00 to $270.75, with a median of $72.75.

Cash prices at 1 facility for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.

Lowest$6.00Northeastern Vermont Regional Hospital, Inc.
Median$72.75half pay less
Highest$270.75in this market
Difference45.1×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Johnsbury, VT.

median
Lowest $6.00Highest $270.75

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Northeastern Vermont Regional Hospital, Inc. lowest St. Johnsbury, VT MAYO PROTHROMBIN TIME $6.00 $8.00 25%
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Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT MAYO PROLONGED CLOT TIME PRO $72.75 $97.00 25%
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Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT PROTHROMBIN TIME $72.75 $97.00 25%
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Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT PROTHROMBIN TIME NVRH DHCC $72.75 $97.00 25%
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Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT FAHC PROTIME $270.75 $361.00 25%
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Outpatient: lowest $6.00, median $72.75, highest $270.75 — a 45.1× difference within the same market.

As an inpatient, the same code is billed by 1 facility here, median $72.75. 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.