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Blood-pressure screening

Explain validated blood-pressure measurement and follow-up in a screening programme.

REFERENCE GALLERY1 / 1 reference
Sphygmomanometer — reference view
100%
1
Cuff

Cuff: located on the reference instrument. Compare its shape and position with the apparatus used in your practical.

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Sphygmomanometer — reference view

Image: AfroBrazilian · Source / original · CC BY-SA 3.0

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Blood-pressure screening

Identify and explain

Cuff pressure is related to arterial flow changes. In manual auscultation, Korotkoff sounds identify systolic and diastolic endpoints.

  • Inflatable cuff connected to a pressure gauge
  • Inflation bulb with a release valve
  • Gauge is commonly calibrated in mmHg
1

Identify the reference

Inflatable cuff connected to a pressure gauge. Inflation bulb with a release valve. Gauge is commonly calibrated in mmHg

2

Explain the measurement

Cuff pressure is related to arterial flow changes. In manual auscultation, Korotkoff sounds identify systolic and diastolic endpoints.

3

Interpret in context

A single screening result is not a complete diagnosis. Repeat measurement, technique and the programme’s referral pathway matter.

At the viva table

Try answering aloud, then open the suggested answer. Examiner questions vary.

01 / What does the first Korotkoff sound indicate?

The conventional auscultatory systolic pressure endpoint.

02 / What does disappearance of sounds usually indicate in adults?

Korotkoff phase V, the usual diastolic endpoint.

03 / Why does cuff size matter?

An unsuitable cuff can bias the measured pressure; select a cuff appropriate to arm circumference.

04 / Why support the arm at heart level?

A height difference introduces a hydrostatic pressure error.

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