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Body Systems and Physiological Disorders

Monitoring pulse and breathing safely before and after exercise

  • 3 things to know
  • A2 2

Overview

How a pulse is counted by hand, how a breathing rate is counted and four features of a safe environment for monitoring.

What you need to know

Answer each one before you reveal it.

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Key term

Describe how a pulse is counted by hand.

Key term

Why should the thumb not be used to take somebody's pulse?

Key term

Compare counting for fifteen seconds and multiplying by four with counting for a full minute.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Where on the body is a pulse most commonly taken?

    Model answer

    A pulse is most commonly taken at the radial artery on the thumb side of the wrist, or at the carotid artery in the neck.

  2. 2

    Describe how a pulse is counted by hand.

    Model answer

    A pulse is counted by pressing lightly with two fingertips over the artery and counting the beats felt across a full minute.

  3. 3

    Why should the thumb not be used to take somebody's pulse?

    Model answer

    The thumb has a noticeable pulse of its own, so using it risks counting the measurer's own heartbeat instead of the participant's.

  4. 4

    Compare counting for fifteen seconds and multiplying by four with counting for a full minute.

    Model answer

    Counting for fifteen seconds is quicker, but any miscount is multiplied by four, so a full minute gives the more accurate figure.

  5. 5

    Describe how a breathing rate is counted.

    Model answer

    A breathing rate is counted by watching the rise and fall of the chest for a full minute, with one rise and one fall counted as a single breath.

  6. 6

    Why is the moment of counting breaths not announced to the participant?

    Model answer

    A person aware that their breathing is being counted at that instant often alters it without meaning to, so the count is taken discreetly after consent has been given for the whole procedure.

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ACounting for fifteen seconds is quicker.
BAny miscount is multiplied by four.
CA full minute gives the more accurate figure.

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