The BP medical abbreviation stands for blood pressure, the force of blood pushing on the walls of the arteries as the heart pumps. It is one of the vital signs, so it appears in almost every visit note, triage sheet, nursing flow sheet and discharge summary.
A reading is written as two numbers with a slash, such as 118/76, and the unit is millimeters of mercury (mmHg). The sections that follow explain those two numbers, the usual adult bands, the shorthand that travels with BP, and the few other meanings the letters carry in skin care and on drug packaging.
At a glance
Stands for
Blood pressureWritten as
BP, B/P, bp; reading as systolic/diastolic, for example 120/80Unit
mmHg (millimeters of mercury)Typical adult goal
Usually under 120/80 counts as normal; clinicians set personal targetsOther meanings
Bullous pemphigoid (dermatology); British Pharmacopoeia (drug labels)Where you see it
Vital signs, triage notes, flow sheets, home logsRelated terms
Top and bottom numbers behind the BP medical abbreviation
The first or top number is the systolic pressure, the peak force while the heart squeezes. The second or bottom number is the diastolic pressure, the lower force while the heart relaxes and refills. A reading of 132/84 therefore means a systolic pressure of 132 and a diastolic pressure of 84, both in mmHg.
Charts sometimes split them apart: SBP for systolic and DBP for diastolic. Another figure, the MAP or mean arterial pressure, is an average that intensive care teams watch because it reflects blood flow to organs.
Usual adult blood pressure categories
Major US heart groups sort adult office readings into bands like these. They are a general guide; your clinician looks at repeated readings, your health history and your own goals.
| Band | Top number | Bottom number |
|---|---|---|
| Normal | Below 120 | plus below 80 |
| Elevated | 120 through 129 | plus below 80 |
| Hypertension, stage 1 | 130 through 139 | or 80 through 89 |
| Hypertension, stage 2 | At least 140 | or at least 90 |
| Severe, needs prompt review | Above 180 | and/or above 120 |
Other countries use slightly different cutoffs, and targets for children, pregnancy and older adults differ again. Long term high readings are charted as HTN, short for hypertension. Low readings with dizziness or fainting may be written as hypotension.
How BP is written in real notes
Nurses and clinicians often add details that change how a number is read: which arm, the body position, the cuff size, or whether the reading came from a home monitor or an arterial line.
Triage sheet: "BP 162/98 R arm, repeat 154/94 after 5 min rest." The patient's pressure was high on arrival and still high on a second check after resting. Many clinics repeat a high first reading because stress, talking or a full bladder can push numbers up.
Orthostatic check: "BP lying 124/78, standing 102/64, c/o lightheaded." The pressure dropped on standing and the patient felt lightheaded, which the team will look into.
Medical abbreviation for blood pressure and its neighbors
BP is the standard medical abbreviation for blood pressure, but several close cousins appear in the same notes. Knowing them makes a vital signs line much easier to read.
| Shorthand | Meaning |
|---|---|
| VS or VSS | Vital signs, or vital signs stable |
| HR | Heart rate |
| NIBP | Non invasive blood pressure, taken with a cuff |
| ABP or art line | Arterial blood pressure measured through a line in an artery |
| BPM | Beats per minute, a heart rate unit, not a pressure |
BP and BPM are a common student mix up: one is a pressure in mmHg, the other is a rate.
Rarer BP meanings in skin care and pharmacy
In dermatology, BP can mean bullous pemphigoid, an autoimmune condition that causes large, tense blisters, most often in older adults. It appears in skin clinic notes and biopsy reports, usually beside words like blisters or immunofluorescence.
On medicine packaging made for the UK, India and some other countries, BP after a drug name refers to British Pharmacopoeia, a book of quality standards. For example, a label may read paracetamol tablets BP. That letters pairing has nothing to do with pressure. In US vital signs and nursing notes, BP means blood pressure almost every time.
For students: charting a blood pressure
Nursing and medical assistant students learn to record the full set: the reading, the arm, the position and the device, plus any symptoms. A BP that is far outside the expected range is usually rechecked and reported to the nurse or clinician in charge, following the facility policy.
The labs, tests and scans hub lists more measurement shorthand you will meet next to vital signs.
Blood pressure goals are personal. If your home readings worry you or differ from clinic numbers, share your log with your doctor or nurse rather than adjusting any medicine yourself.
Frequently asked questions
What does BP stand for in medical terms?
It stands for blood pressure, the force of blood against artery walls. It is written as two numbers, systolic over diastolic, in mmHg.
What is a normal BP for an adult?
Many US guidelines call a reading under 120/80 normal. Your clinician may set a different personal target, so ask which range fits you.
Which number in BP is more important?
Both matter. For many adults over middle age the top number gets extra attention because it tends to rise with age, but either number being high can count toward a diagnosis of high blood pressure.
What does BP mean on a skin biopsy report?
On a dermatology report it often means bullous pemphigoid, a blistering autoimmune skin condition. The surrounding words, such as blister or biopsy, make that meaning clear.
Is B/P the same as BP?
Yes. B/P and BP are two written forms of the same abbreviation for blood pressure.