Pulse oximetry can be a useful tool if available. Patients are continuously monitored or checked every five minutes until they return to a more normal respiratory rate and rhythm. Any drastic changes in the SpO2 need to be addressed. EMS providers may see changes in the SpO2 values when the patients go into coughing spasms or vomit. These values are not considered reliable unless a visible SpO2 waveform has been verified. A normal SpO2 finding should be above 95% on room air. Follow your local protocol in regards to oxygen administration.
Patients that have been sprayed/exposed to aerosol/chemical agents tend to have a higher that normal pulse rate in response to the event at hand. The sympathetic nervous system was activated and it caused the adrenal glands to secrete adrenalin into the blood stream. This will cause an increase in the pulse, blood pressure and respiratory rate. As the patient"s anxiety level comes down the patients pulse and blood pressure usually correspond as well. If they do not respond accordingly then there could be some other underlying issue. | | | |