Use of early warning scales in the prehospital scope as a diagnostic and prognostic tool

Longitudinal observational study to evaluate the use of the prehospital scale National Early Warning Score Lactate (preNEWS-L)

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN17676798

Enrollment

937

Registered

2018-10-26

Start date

2018-04-01

Completion date

Unknown

Last updated

2021-10-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Early mortality in all types of patients without evident signs of severity Not Applicable Early mortality in all types of patients without evident signs of severity

Interventions

Patients and/or participants undergo a structured and objective evaluation according to protocol and proceed to its stabilization. The physiological variables are collected (respiratory rate, saturati

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Treated by an ALSU 2. Aged over 18 years 3. Provide informed consent

Exclusion criteria

Exclusion criteria: 1. Aged under 18 years 2. Cardiorespiratory arrest or exitus prior to arrival at the hospital 3. Pregnant 4. Psychiatric pathology 5. Diagnosis of end-stage disease (in treatment at a palliative care unit) 6. ALSU takes longer than 45 minutes to arrive 7. Evacuated by transport other than ambulance 8. Do not require transfer to the hospital

Design outcomes

Primary

Measure	Time frame
The following are assessed at first attention at the scene of the incident: 1. Respiratory frequency, assessed using clinical observation 2. Oxygen saturation, assessed using a Physio LifePAK® 15 monitor 3. Heart rate, assessed using a Physio LifePAK® 15 monitor 4. Blood pressure, assessed using a Physio LifePAK® 15 monitor 5. Tympanic temperature assessed using a Braun model ThermoScan® PRO 6000 6. Patient consciousness, assessed using the Glasgow Coma Scale 7. Use of oxygen (or not), assessed using clinical observation 8. Lactic acid levels, assessed using an Accutrend® Plus meter 9. Blood glucose, assessed using an Accu-Chek® Aviva	—

Measure

Time frame

The following are assessed at first attention at the scene of the incident: 1. Respiratory frequency, assessed using clinical observation 2. Oxygen saturation, assessed using a Physio LifePAK® 15 monitor 3. Heart rate, assessed using a Physio LifePAK® 15 monitor 4. Blood pressure, assessed using a Physio LifePAK® 15 monitor 5. Tympanic temperature assessed using a Braun model ThermoScan® PRO 6000 6. Patient consciousness, assessed using the Glasgow Coma Scale 7. Use of oxygen (or not), assessed using clinical observation 8. Lactic acid levels, assessed using an Accutrend® Plus meter 9. Blood glucose, assessed using an Accu-Chek® Aviva

—

Secondary

Measure	Time frame
The following are assessed using a review of electronic medical records within 30 days of the index event: 1. Main diagnosis 2. Mortality 3. Days of admission 4. Need for ICU 5. Complementary tests requested	—

Countries

Spain

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 5, 2026