Chapter 14: Observations
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14.1 Pulse measurement
Essential equipment
- Personal protective equipment
- A watch that has a second hand
- Observations chart
- Black pen
- A stethoscope (if counting the apical beat)
- Electronic pulse measurement device, for example pulse oximeter, blood pressure measuring device or cardiac monitor
Pre‐procedure
ActionRationale
- 1.
Introduce yourself to the patient, explain and discuss the procedure with them, and gain their consent to proceed.To ensure that the patient feels at ease, understands the procedure and gives their valid consent (NMC [144], C).
- 2.Decontaminate hands with soap and water and/or an alcohol‐based handrub, and apply personal protective equipment.To prevent cross‐infection (NHS England and NHSI [124], C).
- 3.Where possible, measure the pulse under the same conditions each time.To ensure continuity and consistency in recording (Tait et al. [194], E).
- 4.Ensure that the patient is comfortable and relaxed. Ideally the patient should refrain from physical activity for 20 minutes before their pulse is measured.To ensure that the patient is comfortable. EStrenuous activity will result in falsely elevated readings (Bickley [18], E).
Procedure
- 5.Place the first and second fingers, and optionally also the third finger, along the appropriate artery and apply light pressure until the pulse is felt (Action figure 14.10).The fingertips are sensitive to touch. Practitioners should be aware that the thumb and forefinger have pulses of their own and therefore these may be mistaken for the patient's pulse (Peate and Wild [157], E).
- 6.For apical heart rate, place a stethoscope on the fourth or fifth intercostal space on the left mid‐clavicular line (typically under the breast area) and listen to the heart beat.The apical heart rate is usually recorded if the heart rate is irregular; this ensures a more accurate count (Bickley [18], E).
- 7.Count the pulse for 60 seconds.Sufficient time is required to detect irregularities in rhythm or volume; however, if the pulse is regular and of good volume, subsequent readings may be taken for 30 seconds and then doubled to give beats per minute (Blows [21], E). If the rhythm or volume changes on subsequent readings, the pulse must be taken for 60 seconds (Bickley [18], E).
- 8.Accurately document the result; additional factors, such as the rhythm, volume and skin condition (dry, sweaty or clammy), may be described in the patient's nursing notes.
Post‐procedure
- 9.Discuss the result and any further action with the patient.To involve the patient in their care and provide assurance of a normal result or explain the actions to be undertaken in the event of an abnormal result (NMC [144], C).
- 10.Wash and dry or decontaminate hands with an alcohol‐based handrub. Decontaminate any equipment used as per local policy.