Monitoring blood pressure at home aids in early detection of hypertension and tracking treatment efficacy. However, readings are easily influenced by emotions and daily habits. Incorrect timing can lead to inaccurate results. Here are 5 times to avoid measuring blood pressure for more precise readings.

Right after taking blood pressure medication

According to Times of India, blood pressure medication does not take effect immediately. It typically needs 30 minutes to several hours, depending on the type. Measuring blood pressure right after taking medication might not fully reflect treatment effectiveness and can complicate comparisons with previous readings. Patients should measure blood pressure at the same time each day, as directed by their doctor, for accurate monitoring.

Immediately after exercise or strenuous activity

After activities like running, climbing stairs, gym workouts, or heavy lifting, the heart beats faster to meet muscle demands, leading to a temporary blood pressure increase. Measuring immediately can result in readings higher than actual. It is advisable to wait at least 30 minutes after strenuous activity, or until your heart rate and breathing normalize, before taking your blood pressure.

Measuring blood pressure can help detect early health abnormalities. *Photo: Tam Anh General Hospital*

After drinking coffee or alcohol

According to WebMD, both caffeine in coffee and alcohol can temporarily alter blood pressure. Experts recommend avoiding blood pressure measurement within 30 minutes of consuming these substances.

Right after strong emotional states

Emotions such as anger, anxiety, fear, stress, or intense excitement can temporarily elevate blood pressure. This occurs because the sympathetic nervous system activates, prompting the body to release hormones like adrenaline and noradrenaline. These hormones accelerate heart rate, boost contractile force, and constrict blood vessels, leading to a short-term rise in blood pressure. Once emotions stabilize, blood pressure typically returns to normal. Before measuring, sit in a quiet place, relax, and breathe steadily for at least 5 minutes.

Right after a hot bath or sauna

Hot water and high temperatures cause blood vessels to dilate, dissipating heat and temporarily altering blood pressure. After bathing or using a sauna, wait about 20-30 minutes for your body to stabilize before taking a reading.

For accurate monitoring, measure blood pressure at the same time daily. Ideally, do so in the morning before breakfast and before any blood pressure medication (if prescribed for monitoring), and again in the evening before bed. Each session should involve two to three measurements, spaced about one minute apart, with the average value recorded. During measurement, sit still, avoid talking or moving, and position your arm at heart level.

Le Nguyen (Compiled)