Can a simple tape measure make blood pressure readings more accurate in pregnancy?
NCT ID NCT04012151
First seen Aug 14, 2026 · Last updated Aug 14, 2026
Summary
This study looks at whether measuring the arm or finger can help choose the right blood pressure cuff size for pregnant women. Accurate blood pressure readings are vital during pregnancy and childbirth, but the current method of sizing cuffs may not always be correct. Researchers will measure the arms and fingers of 300 pregnant women in their third trimester to see which measurement best predicts the need for a non-standard cuff size. The goal is to improve blood pressure monitoring for safer care.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Physical measurement of arm and finger dimensions, and cuff size fitting
- What this could lead to
- If arm or finger measurements predict cuff size better than current methods, it could improve blood pressure accuracy in pregnant women, leading to better monitoring and care.
- What could go wrong
- This is an observational study, so it won't directly test a treatment. The findings may not apply to all populations or settings, and the best predictor may not be simple to use in practice.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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KK Women's and Children's Hospital
Singapore, 229899, Singapore
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