Everyday Measurements

혈압 단위

정의

혈압은 수은주밀리미터(mmHg)로 측정하며, 수축기 혈압(심장 수축 시)과 이완기 혈압(심장 이완 시)의 두 값으로 표시한다(예: 120/80 mmHg).

설명

The unit dates to the mercury manometers used in early sphygmomanometers, where pressure literally raised a column of liquid mercury. Normal adult blood pressure is below 120/80 mmHg; hypertension stage 1 begins at 130/80 mmHg. Although mercury instruments are now largely replaced by electronic sensors for safety reasons, mmHg remains the universal clinical standard because of its century-long reference base.

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RELATED TERMS

BMI (체질량 지수)

체중(kg)을 신장(m)의 제곱으로 나누어 산출하는 선별 지표(kg/m²).

타이어 규격 표시

타이어 규격은 폭/편평비 R 직경(예: 205/55 R16) 형식으로, 폭은 mm, 편평비는 폭 대비 측벽 높이 백분율, 직경은 림 크기(인치)를 나타낸다.