Conflicting views on the measurement of blood pressure in pregnancy

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Abstract
Summary. Current practice with regard to the technique of blood pressure measurement in pregnancy was assessed by means of a self‐completed questionnaire sent to all midwives (116) and obstetricians (11) working in a UK District General Hospital obstetric unit. The response rate was 72% (91 respondents). Over half of the respondents (53%) use the fifth phase diastolic end point (contrary to current recommendations). Of the 75 respondents who had access to a large adult cuff 54 (72%) had used it on ‘less than two occasions’ over the preceding four weeks. Only 10% (9) of respondents reported that they record blood pressure to the nearest 2 mmHg and 23% (22) reported that they round blood pressure readings to the nearest 10 mmHg. There were diverse views on the interpretation of multiple blood pressure recordings. The conclusion is that compliance with current recommendations on blood pressure measurement technique in pregnancy is poor. There is poor agreement among midwives and obstetricians as to how blood pressure should be recorded in pregnancy.