A blood pressure reading of 140/88 mmHg should not be considered normal, even if the lower number appears relatively close to the usual range. The top number, known as systolic blood pressure, measures the pressure in the arteries when the heart contracts. The bottom number, or diastolic pressure, measures the pressure between heartbeats.
In a reading of 140/88 mmHg, the systolic value is elevated. Under commonly used adult blood pressure guidelines, a systolic reading of 140 mmHg falls within the high blood pressure range, even when the diastolic number is below 90 mmHg.
Dr Aseem Dhall, Director and Head of Cardiac Sciences at ISIC Multispeciality Hospital, explains the significance of such readings and when people should seek medical advice. However, one measurement alone does not necessarily confirm a diagnosis of hypertension.
Blood pressure can fluctuate throughout the day due to stress, physical activity, caffeine, smoking and other factors. An incorrect cuff size or improper measurement technique can also affect the result.
If a monitor shows 140/88 mmHg, sit quietly for five minutes before checking again. Keep your back supported, feet flat on the floor and arm resting at heart level. Avoid talking during the measurement and take two readings about one minute apart. Record the results and discuss repeated elevated readings with a healthcare professional.
High blood pressure often has no obvious symptoms, which is why regular monitoring matters. If readings consistently remain elevated, a doctor can assess cardiovascular risk and recommend appropriate lifestyle changes or medication when needed.
A reading of 140/88 mmHg is not usually a medical emergency by itself. However, seek urgent medical care if high blood pressure occurs alongside chest pain, severe breathlessness, sudden weakness, confusion or other serious symptoms.

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