EMS Protocol of the Week - Adult Respiratory Distress

For this Protocol Review, we will be looking at Adult Respiratory Distress. 

This is a general protocol for undifferentiated respiratory distress; identifiable causes including airway obstruction and anaphylaxis are addressed in different protocols. 

All EMS providers, from first responders to paramedics, are trained to collect a set of vital signs and can initiate supplemental oxygen for identified vital sign abnormalities. 

BLS providers in NYC may initiate continuous positive airway pressure (CPAP) for persistent respiratory distress; this is not just an ALS skill. 

ALS providers have a host of interventions written into their protocols including:

 - CPAP

 - Endotracheal Intubation

 - Needle decompression for suspected pneumothorax

 - Cardiac monitoring, ECG, and interventions related to any relevant cardiac pathway

 - Sublingual and/or IV Nitroglycerin for suspected Acute Cardiogenic Pulmonary Edema

Medical Control Option:

Furosemide may be given at our discretion, 20-80mg IV

Prehospital furosemide has been the topic of some controversy, especially when administered without physician oversight. The reasons for this are that heart failure can be a difficult diagnosis to make in the prehospital setting without labs or imaging, and with sometimes limited medical history. In one study (Jaronik et al, 2005) retroactively analyzing the appropriateness of EMS administered furosemide, it was given appropriately for heart failure 58% of the time, was identified to be inappropriate but benign in 25% of administrations, and inappropriate and potentially harmful in 17% of administrations. When deciding whether to approve this adjunct, just consider: will this significantly alter the course of this patient’s care, or can it wait until they are in the ED? And approve at your discretion.

 · 
Share

EMS Protocol of the Week - Seizures

For this EMS protocol review, I wanted to focus on prehospital seizure treatment. Both the adult and pediatric algorithms are the same and utilize the same medications and weight based dosing. Paramedics are authorized to utilize 3 different benzodiazepines to treat active seizures:

 

Midazolam (Versed) 0.2mg/kg IV/IN/IM. If effect is not achieved, may be repeated after 5 minutes. Max single dose is 5mg and max cumulative dose is 10mg.

 

Lorazepam (Ativan) 0.1mg/kg IV/IN/IM. If effect is not achieved, may be repeated after 5 minutes. Max single dose is 2mg and max cumulative dose is 4mg.

 

Diazepam (Valium) 0.2mg/kg IV, infused over 1 minute. If effect is not achieved, may be repeated after 5 minutes. Max single dose is 5mg and max cumulative dose is 10mg.

 

The Medical Control Option for refractory seizures is to administer additional doses of any of these standing order medications. Some considerations for medication choice include availability, as Lorazepam requires refrigeration is not always carried, nor is IV Diazepam due to supply issues. Of these 3 medications, Midazolam is the fastest acting. With mounting doses of benzodiazepines, loss of spontaneous breathing should be a consideration, but typically can be outweighed by ceasing the seizure activity.

 

Finally, some patients with known seizure disorders, usually pediatrics, will have home prescriptions for PR diazepam, also known as Diastat. Occasionally, you will receive calls from EMS asking if they can administer this home medication. This formulation is not in the algorithm and has a much more erratic absorption than other routes of benzodiazepine administration. Because EMS is already present and has access to faster acting and more reliable medications like Midazolam, this should be administered instead.

Check out the RAMPART trial for a more in depth study on IM vs IV benzodiazepines and their efficacy!

 · 
Share