The PT medical abbreviation has three everyday meanings: patient, physical therapy or the physical therapist who provides it, and prothrombin time, a blood clotting test. The right reading comes from the words around it, and the person who wrote the entry can always confirm.
Pt with a period or in lower case is one of the most common words in any chart, standing in for the person receiving care. In a therapy order, PT is the service or the clinician. On a lab report, it is a number measured in seconds, often printed beside the INR. This page shows each meaning in real lines, explains the credentials physical therapists use, and lists the lesser meanings that pop up now and then. More titles and services appear on the credentials and care teams hub.
At a glance
Stands for
Patient (pt, pt.), physical therapy or physical therapistOther meanings
Prothrombin time (lab), pint, posterior tibial (pulse)Written as
PT, Pt, pt., ptPlural or forms
pts for patients; DPT for Doctor of Physical TherapyWhere you see it
Progress notes, therapy orders, discharge plans, coagulation lab reportsDo not confuse with
Specialty
Rehabilitation, nursing, hematology and anticoagulation clinics
Three main meanings of the PT medical abbreviation
| Meaning | Clue in the text | Example |
|---|---|---|
| Patient | Starts a sentence or acts as the subject | "Pt resting comfortably." |
| Physical therapy or therapist | Appears with eval, consult, sessions or treat | "PT 3x/week for 4 weeks." |
| Prothrombin time | Has a number in seconds, often near INR | "PT 13.1 sec, INR 1.0" |
In the sample line "Pt ambulated 50 ft with walker. PT to eval and treat," both uses sit side by side. The first Pt is the patient who walked; the second PT is the physical therapy team asked to assess and treat.
Pt as the medical abbreviation for patient
In medical terminology the short form for patient is pt and it shows up everywhere in nursing notes, doctor's progress notes and handoffs because it saves time in a sentence that repeats the same subject again and again. Writers use pt, Pt or pt. with a period, and pts for more than one patient.
Nursing note: "Pt c/o pain 6/10 L hip, repositioned, call light in reach." Pt means patient and c/o means complains of. The line is a format sample.
When people search for the medical term for pt in this sense, the answer is simply patient. Some hospitals now prefer the full word in notes that patients can read online, but the shorthand remains common.
Physical therapy and the physical therapist
In rehab and hospital orders, PT means physical therapy, the treatment that helps people regain movement, strength and balance after injury, surgery or illness. It can also name the licensed physical therapist who designs and delivers that care.
Physical therapists in the US now enter the field with a Doctor of Physical Therapy degree, written DPT, and must pass a national licensing exam and hold a state license. A physical therapist assistant works under a therapist's plan of care. Therapists often work closely with OT, occupational therapy, which focuses on everyday self-care like getting dressed or washing, the activities charted as ADL.
Therapy notes are full of related shorthand, such as ROM for range of motion and WBAT for weight bearing as tolerated. A therapist's recommendation often shapes where someone goes after the hospital, such as home or a SNF.
PT as a clotting test
On a lab report, PT means prothrombin time, which counts the seconds a plasma sample needs to form a clot once certain reagents are added. A normal result is usually around 11 to 13.5 seconds, though each laboratory sets its own reference range.
Because results vary between labs, PT is usually reported with the INR, a standardized ratio. Teams follow both when someone takes warfarin, before some procedures and when checking liver function. The PTT is a separate clotting test that looks at a different part of the clotting pathway.
Less common meanings and look-alikes
A few other expansions appear in specific places. In pharmacy and older recipes for liquids, pt can mean pint. In vascular and foot exams, PT often means posterior tibial, as in "PT pulses 2+ bilaterally," which describes the pulse behind the inner ankle bone.
Watch for PTA, which can mean physical therapist assistant in a rehab note but has other meanings in procedure notes, such as the angioplasty described on the PTA page. If a PT entry is still unclear, ask the nurse or the author of the note.
For students: charting PT clearly
New staff learn to read PT by its neighbors. Many teaching programs suggest writing physical therapy or the patient's name when a sentence could be read two ways, and always pairing a PT lab value with its units and the INR. Clear charting saves the next reader from guessing.
This guide gives general meanings only. A nurse, doctor or pharmacist involved in your care can explain any PT entry in your own record.
Frequently asked questions
What does pt mean in medical notes?
Most of the time, pt is short for patient, the person receiving care. In an order or therapy plan, PT can instead mean physical therapy, and on a lab report it means prothrombin time.
What is the medical abbreviation for patient?
The usual abbreviation is pt, also written Pt or pt. with a period. The plural is pts.
Is PT the same as PTT?
No. PT is prothrombin time and PTT is partial thromboplastin time. Both measure clotting, but they test different parts of the process and are used for different purposes.
What does PT eval mean?
PT eval means a physical therapy evaluation. A physical therapist assesses movement, strength and safety, then sets goals and a treatment plan.
What is a normal PT result?
Many labs list a normal prothrombin time of roughly 11 to 13.5 seconds, but each lab sets its own range. Results are usually read together with the INR by the ordering clinician.