Lab tests CPT 85610 Inpatient — admitted to hospital

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

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

Cash prices at 1 facility for code 85610, as an inpatient (admitted to hospital) . 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%
source file
Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT MAYO PROLONGED CLOT TIME PRO $72.75 $97.00 25%
source file
Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT PROTHROMBIN TIME $72.75 $97.00 25%
source file
Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT PROTHROMBIN TIME NVRH DHCC $72.75 $97.00 25%
source file
Northeastern Vermont Regional Hospital, Inc. St. Johnsbury, VT FAHC PROTIME $270.75 $361.00 25%
source file

Inpatient: lowest $6.00, median $72.75, highest $270.75 — a 45.1× difference within the same market.

As an outpatient, the same code is billed by 1 facility here, median $72.75 — that is the price to compare if you are not being admitted.

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.