Who this is for
Every adult. This is one of the few screening questions with no eligibility puzzle: USPSTF gives it a grade A for adults 18 and older, and the 2025 ACC/AHA guideline calls for screening all adults in the community.
What differs by person is how often, and only USPSTF publishes numbers for that. It suggests yearly from 40, and yearly at any adult age for people at increased risk, naming Black persons, people with high-normal blood pressure, and people who are overweight or obese. For adults 18 to 39 without those risks and with a prior normal reading, it suggests every three to five years.
The 2025 ACC/AHA guideline classifies the readings themselves: normal is under 120 systolic and under 80 diastolic, elevated is 120 to 129 systolic with diastolic under 80, stage 1 is 130 to 139 systolic or 80 to 89 diastolic, and stage 2 is 140 or above systolic or 90 or above diastolic.
Where the recommendations diverge
- USPSTF 18 and older
- ACC / AHA Not age-bounded
- ACC / AHA Not age-bounded
The USPSTF recommends screening for hypertension in adults 18 years or older with office blood pressure measurement (OBPM). The USPSTF recommends obtaining blood pressure measurements outside of the clinical setting for diagnostic confirmation before starting treatment.
Our note: Interval from the same page's Screening Intervals section, which leads with the caveat: "Available evidence on optimal screening intervals for hypertension remains limited." It then suggests annual screening from 40 and for adults at increased risk (naming Black persons, people with high-normal blood pressure, and people who are overweight or obese), and every 3 to 5 years for adults 18 to 39 not at increased risk with a prior normal reading. No upper age is stated, so stop_age is left empty.
Clinicians should collaborate with community leaders, health systems, and practices to implement screening of all adults in their communities and implement guideline-based recommendations regarding prevention and management of high blood pressure to improve rates of blood pressure control.
Our note: Top Take-Home Message 2 of the 2025 high blood pressure guideline. It is a take-home message rather than a numbered recommendation, so the grade cell is empty rather than carrying a Class of Recommendation the guideline does not attach to it. No age and no interval are stated anywhere in the document for population screening, which is why both age fields are empty and the interval reads "Not stated".
In adults with suspected hypertension, out-of-office BP measurements by either ABPM or HBPM are recommended to confirm the diagnosis of hypertension.
Our note: Section 3.1.4, Class of Recommendation 1, Level of Evidence A, the strongest grade the document issues. ABPM is 24-hour ambulatory monitoring; HBPM is measuring at home. The guideline states no age band for this, so both age fields are empty. Its companion Class 1 recommendation covers the office reading itself: standardized methods are recommended for the accurate measurement and documentation of in-office BP.
Why they differ
These two bodies agree on the two things that matter most, and the difference between them is about what kind of document each is writing rather than about medicine.
- They agree that every adult should be screened. USPSTF grades it A, its strongest. ACC/AHA's second take-home message calls for screening all adults in their communities.
- They agree that an office reading is not a diagnosis. USPSTF: obtain measurements outside the clinical setting for diagnostic confirmation before starting treatment. ACC/AHA: out-of-office measurement by ambulatory or home monitoring is recommended to confirm the diagnosis, at Class 1 with Level of Evidence A.
Where they differ is what is left unsaid. USPSTF publishes an age floor of 18 and rescreening intervals, hedged with its own admission that the evidence for those intervals is limited. The 2025 ACC/AHA guideline publishes neither. Its numbered recommendations on detection are about measurement technique and diagnostic confirmation, not about who to screen at what age and how often; its call to screen all adults sits in the take-home messages, without a Class of Recommendation attached.
We looked for a passage explaining why the guideline sets no age and no interval, reading the whole of its Section 3 on patient evaluation and searching the full text for "annually", "every year", "rescreen" and "screening interval", and did not find one. The only interval statements in the document concern repeating laboratory tests in people already diagnosed. What the guideline does publish instead of a screening schedule is a set of detection recommendations about measurement technique and diagnostic confirmation. Read together, the practical answer is USPSTF's: everyone from 18, yearly from 40, and confirm at home before anyone prescribes anything.
2 documents set the numbers on this page. The oldest was published in 2021, the newest in 2025.
We last re-read these sources on . How we verify.
What the test involves
Both bodies care more about technique than most readers expect, because bad technique is the main source of wrong numbers. Sit quietly for a few minutes, feet flat, back supported, arm at heart level, cuff on bare skin and the right size for your arm. Take at least two readings and average them; ACC/AHA suggests an average of two or more measurements on two or more separate occasions.
Confirmation happens away from the clinic. Ambulatory monitoring means wearing an automated cuff for 24 hours, taking readings every 15 to 30 minutes in the day and every 30 to 60 minutes at night. Home monitoring means measuring yourself over days or weeks with a validated device. ACC/AHA notes that home monitoring is often the more practical of the two and is what it recommends for tracking treatment.
If the result is abnormal
A high office reading starts a confirmation step, not a prescription. If out-of-office readings confirm hypertension, ACC/AHA's Class 1 recommendation is a baseline work-up: complete blood count, sodium, potassium, calcium, creatinine with estimated GFR, lipid profile, fasting glucose or A1C, thyroid-stimulating hormone, urinalysis, urine albumin-to-creatinine ratio, and a 12-lead ECG. Those tests are then repeated at least annually.
Screening can also come out the other way: a normal office reading with high readings at home is called masked hypertension, and it carries a cardiovascular risk similar to sustained hypertension. That is one reason the out-of-office step matters in both directions.
More on this screening
Frequently asked questions
How often should my blood pressure be checked?
USPSTF is the only one of the two that answers with numbers: yearly from 40, and yearly at any adult age if you are at increased risk, which it defines as Black persons, people with high-normal readings, and people who are overweight or obese. Every three to five years is its suggestion for adults 18 to 39 who are low risk with a prior normal reading. It says openly that the evidence behind those intervals is limited.
One high reading at the doctor. Am I hypertensive?
No, and both bodies say so in their strongest terms. USPSTF recommends measurements outside the clinical setting for diagnostic confirmation before treatment starts. ACC/AHA gives out-of-office confirmation by ambulatory or home monitoring a Class 1 recommendation at Level of Evidence A. A single reading is not a diagnosis.
Home cuff or the 24-hour monitor?
ACC/AHA accepts either for confirming a diagnosis. Ambulatory monitoring has the longer evidence trail for predicting cardiovascular events; home monitoring is more practical and is what the guideline recommends for tracking medication once treatment starts. Whichever you use, the device must be validated, and the guideline points clinicians at validatebp.org for the list.
Do smartwatches and cuffless devices count?
Not yet, according to ACC/AHA. The 2025 guideline reviews cuffless devices and concludes that substantial variation in sensor technology and validation approaches means these limitations must be overcome before cuffless devices can be recommended for clinical use.