High blood pressure: when to measure, when to investigate

Checking high blood pressure starts with repeated measurements under comparable conditions, not with a single reading.

A single blood-pressure value says little. It depends on time of day, activity, coffee, stress and whether you are sitting in a surgery. Whether high blood pressure needs investigation, and how pronounced it is, only becomes clear from repeated measurements under comparable conditions and often from a 24-hour recording.

I work as a specialist in cardiology and internal medicine with a holistic view: first clean measurements, then the question of why the pressure rises. Many patients arrive with “slightly raised” blood pressure and a standard laboratory panel. That is often not enough for a reliable assessment.

How to measure at home (my recommendation)

Upper-arm device, correct cuff size. Morning and evening, after sitting for a few minutes, arm at heart level, without talking and without tensing.

Measure twice, one to two minutes apart. Record only the values from the second measurement. The first reading is often distorted by movement, putting on the cuff or brief tension. The second is closer to your resting pressure.

Keep a short log over several days: second measurement, time, symptoms, medication. Surgery values and home values belong together. In the practice, nervousness often raises the numbers (white-coat effect). At home, everyday life including the night becomes visible when an ambulatory recording follows.

Orientation (not an individual diagnosis):

• In the practice, values from 140/90 mmHg are often used as a threshold for high blood pressure.
• With repeated home readings the thresholds are often somewhat lower (commonly around 135/85 mmHg during the day).
• What matters is the pattern over days, not a single outlier.

When you should have it investigated

Come for a specialist assessment if:

• repeated second readings are clearly raised,
• the values fluctuate strongly,
• dizziness, new headaches, chest tightness, breathlessness or visual disturbance appear,
• ongoing blood-pressure treatment does not match the expected course,
• diabetes, kidney disease or known vascular problems are present.

With high overall risk (blood lipids, glucose metabolism, smoking, weight, family history), assessment is worthwhile even if the numbers look “only slightly” raised.

My recommendation: investigate hypertension holistically

Blood pressure is a measurement. The cause often lies deeper: the vessel lining, inflammation, oxidative stress, micronutrients, toxins, intolerances. That is why in hypertension I recommend an assessment that goes beyond the cuff and a basic laboratory panel.

Cardiologically I check whether the heart or vessels are already responding: history, examination, repeated measurements, resting ECG, and if needed cardiac ultrasound and ambulatory blood-pressure monitoring. A heart check places overall risk in context.

On the laboratory side, in a holistic hypertension work-up I particularly recommend:

• Homocysteine (vascular and methylation risk)
• Omega-3 index (fatty-acid status of cell membranes)
• Oxidative load (free radicals / antioxidant capacity)
• Heavy metals and toxins
• Food intolerances

In addition there are the classic building blocks I always consider: kidney, electrolytes, blood glucose, blood lipids. What is useful in an individual case depends on prior findings, symptoms and previous treatment. Aim of the work-up: reliable measurements, identifiable contributing causes, a plan that fits your risk.

Ambulatory blood-pressure monitoring

Ambulatory blood-pressure monitoring records many values over day and night in everyday conditions. It helps separate white-coat hypertension from persistently raised values, assess the day–night pattern and steer ongoing treatment more realistically than single readings.

You wear an upper-arm cuff with a portable device for about 24 hours. During the day the device measures at short intervals, at night somewhat less often. An activity and symptom log makes the curve easier to read.

When I consider strophanthin

When drug or complementary treatment is being considered, I also use plant-derived agents in suitable patients. Strophanthin (from Strophanthus) stimulates the sodium–potassium pump of the heart-muscle cell and supports the membrane potential without raising oxygen consumption. In the practice I consider it in hypertension with accompanying cardiac strain; it can lower blood pressure. Whether it suits you and can be combined with existing medication is decided individually.

More on use: strophanthin therapy.

Next step

If your repeated second readings are raised, fluctuate strongly or symptoms appear, a specialist assessment is appropriate. In the practice I interpret the values, plan ambulatory monitoring and holistic laboratory tests if needed, and discuss whether strophanthin or other measures are an option for you.

Appointment: via Doctolib or Contact.

Further articles: Expert tips.

The information on this page does not replace individual medical advice, examination or treatment. Whether any measures are appropriate is decided in a personal consultation. Courses differ from person to person.