BT-740 Operation manual
P/N : 740-ENG-OPM-EUR-D03
5) Indications and contraindications
Blood oxygen saturation (SpO
2
)
Indication:
- Monitoring effectives of oxygen therapy
- A reading is needed to facilitate the completion of an early warning score to inform
clinical assessment
- Sedation or anesthesia
- Transport of patients who are unwell and require oxygenation assessment
- Haemodynamic instability (e.g. cardiac failure or Myocardial Infarction)
- Respiratory illness e.g. asthma, chronic obstructive pulmonary disease
- Monitoring during administration of respiratory depressant drugs, e.g. opiate
epidural or patient-controlled analgesia.
- Assessing oxygen saturation during physical activity e.g. in pulmonary rehabilitation
Contraindications
- Pulse oximetry does not give an indication of haemoglobin so if the patient is
profoundly anaemic then their oxygen saturation may by normal but they may still be
hypoxic
Source: NHS. “Clinical Procedure_ Procedure for Pulse Oximetry/SPO2”. Wirral Community NHS Trust. Sep, 2013
Non-invasive blood pressure (NIBP)
Indication:
- To determine a patient’s blood pressure
- Screen for hypertension
- Following the effect of anti-hypertensive treatments in a patient to optimize their
management
- Assessing a person’s suitability for a spot or certain occupations
- Estimation of cardiovascular risk
- Determining for the risk of various medical procedure
- Figuring out whether a patient is clinically deteriorating or is at risk.
Contraindications
- Oscillometric blood pressure devices may not be accurate in patients with weak or
thready pulse
- In patients with heart beats below 50 beats/minutes, even if the rhythm is regular,
some of the semi-automatic devices are unable to reduce their deflation rate
sufficiently so that too rapid a falling in cuff pressure results in underestimation of
systolic blood pressure and overestimation of diastolic blood pressure.
- Do not apply to limb with AV fistula, significant injury or burn, or lymph node removal
post mastectomy.
Source: [1] NHS. “Clinical Procedure_ Procedure for Blood Pressure Monitoring”. Wirral Community NHS Trust. Dec,
2013
[2] Clinical Quality& Patient Safety Unit, QAS. Clinical Practice Procedures: Assessment/Non-invasive blood
pressure. Queensland Government, 2016. https://www.ambulance.qld.gov.au/clinical.html