Blood pressure measurement – Welch Allyn Connex ProBP 3400 digital blood pressure device - User Manual User Manual
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Blood pressure measurement
The preferred blood pressure measurement site for adults and children is the upper arm. Keep the
patient’s arm relaxed and motion-free during measurement(s).
WARNING Inaccurate measurement risk. Do not place the cuff where it can
disturb proper circulation. Do not place the cuff on any area where circulation is
compromised or on any extremity used for intravenous infusions.
WARNING The blood pressure cuff must be properly positioned to ensure blood
pressure accuracy and patient safety. Wrapping the cuff too loosely (preventing
proper inflation) may result in inaccurate NIBP readings.
WARNING Do not allow a blood pressure cuff to remain on the patient more than
3 minutes when inflated above 15 mmHg. Excessive cuff tightness may cause
venous congestion, peripheral nerve injury, discoloration of the limb, and patient
distress.
WARNING ProBP 3400 is not intended to measure blood pressure on neonatal
patients. The AAMI SP10:2002 standard defines neonates as children 28 days or less
of age if born at term (37 weeks gestation or more); otherwise up to 44 gestational
weeks.
To initiate blood pressure measurements:
1. Press the Power on/power off button to turn the device on.
2. Properly size the blood pressure cuff and position it around the patient's bare upper arm with
the artery index marker over the brachial artery. Leave room between the cuff and the arm for
no more than two fingers.
3. From the Home screen, press the Blood Pressure Start/Stop button.
The ProBP 3400 inflates the blood pressure cuff to the appropriate pressure and displays the
pressure as the blood pressure cuff is deflating.
If your device contains the SureBP feature (captures blood pressure on inflation): From the
Home screen, press the Blood Pressure Start/Stop button. The ProBP 3400 inflates the
cuff to the appropriate level, measuring the blood pressure as the cuff is inflating. The systolic
display shows the pressure in the cuff as the blood pressure determination is in process. If the
device is unable to determine a blood pressure while the cuff is inflating due to patient
movement, excessive noise, or an arrhythmia, the device will use the Step algorithm to inflate
the cuff to a higher pressure, then attempt to measure the blood pressure while deflating the
cuff.
Pressing the Blood Pressure Start/Stop button at any time during a blood pressure
determination aborts the measurement and rapidly deflates the cuff.
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