TL;DR
Oxygen Delivery Devices: Range of devices: nasal cannula, simple mask, partial rebreather, non-rebreather, Venturi mask, and BVM.
Oxygen Delivery Devices
Definition
Range of devices: nasal cannula, simple mask, partial rebreather, non-rebreather, Venturi mask, and BVM.
Key Values & Ranges
Key values and ranges relevant to oxygen delivery devices in prehospital care:
| Parameter | Adult | Pediatric |
|---|---|---|
| ETCO2 | 35-45 mmHg | 35-45 mmHg |
| blood glucose | 70-140 mg/dL | 60-100 mg/dL (neonates lower) |
| respiratory rate | 12-20 breaths/min | 25-50 (infant), 15-30 (child) |
| blood pressure | 90/60-120/80 mmHg | 70+(2*age) systolic minimum |
Related Procedures
Procedures related to oxygen delivery devices in the EMS setting:
- Spinal motion restriction: mechanism + neuro deficit or midline tenderness = full SMR with C-collar and long board
- STEMI protocol: 12-lead ECG within 10 min then aspirin 324mg then NTG if SBP >90 then notify cath lab then transport code 3
- RSI sequence: preoxygenation then sedation (etomidate 0.3mg/kg or ketamine 2mg/kg) then paralytic (succinylcholine 1.5mg/kg or rocuronium 1mg/kg) then intubation then confirm placement with waveform capnography
Safety Considerations
Field safety for oxygen delivery devices includes scene assessment before patient contact. Ensure BSI (body substance isolation) precautions are in place. PPE selection depends on the mechanism and suspected pathogens. Gloves are the minimum; add mask and eye protection for splash risk, N95 for airborne pathogens.
Never approach a scene involving hazardous materials, violence, or structural instability without proper resources and clearance from incident command.
Assessment Techniques
Assessment techniques for oxygen delivery devices:
- Cincinnati Stroke Scale
- Components: Facial droop, Arm drift, Speech abnormality. Scoring: Any 1 positive = 72% probability of stroke
- APGAR
- Components: Appearance, Pulse, Grimace, Activity, Respiration. Scoring: 0-10 at 1 and 5 minutes, under 7 needs intervention
- SAMPLE
- Components: Signs/symptoms, Allergies, Medications, Past history, Last intake, Events. Scoring: Mnemonic for patient history gathering
Why It Matters
Device selection based on patient needs tested on EMT exam.
Related Terms
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