Great post, I will try to expand a bit, please forgive my spelling and grammar for a bit I am on a computer whos native language is not english.
Hypothermia --- diagnose by properly assessing the core temperature (rectal), or at least go by a cold body core. Treatment: Heat packs at the groin and armpits (Hospitals providers please expand on this)..
Are you asking about internal warming techniques? you can do warm lavage through NG tubes, IV fluids, and in extreme cases through thoracoty tubes.
As for external, bear hugger and the burn intensive care unit is great, the weather there is quite pleasant at 36-37C
Hypovolemia --- recognize by fluid loss, blood or otherwise. Consider a range of etiology from sepsis, to the obvious bleeder, to untreated GI bleeds, to long term emesis/diarrhea c poor PO intake, etc etc. Treatment: 250cc fluid bolus in the field. Pending etiology further treatment = antibiotics, surgery, nourishment, blood transfusions, etc..
250ml may be a bit conservative. It may also be totally absorbed in 3rd space. (not advocating large amount of crystalloid, but an initial bolus of 500-1000ml unless an obvious bleeder or signs of GI Bleed.)
Hypoxia --- recognize in the pt c prolonged downtime, pt c breathing pathologies, insults to respiratory drive/CNS (narcotic/cva/trauma). Treatment: High flow O2 c effective ventilations and appropriate tidal volume...
Maybe we can debate high flow o2, I spent a lot of time tis week on Km and vmax of o2 and heme.
Hypo/Hyperkalemia --- Toughest one in my opinion. Strongly consider this for pts with CRF!!! Kidneys play a pivotal role in potassium homeostasis! Also consider for pts with poor diets, or secondary to long term vomitting (results from a chain going from emesis to hypovolemia to potassium excretion by kidneys), or pts taking diuretics (ever notice how most of their med lists include potassium?). Treatment: Getting a very good/credible pt history on scene is paramount (ex: date last dialyized and frequency), dialysis technicians will be your best ally. Prehospitally Consider Bicarb and consider Calcium Chloride. Can't speak for what treatments hospital would provide assuming there is no ROSC....
The same without a pulse. As Rid said, prevention prior to arrest is your best ally.
Hydrogen Ion Acidosis --- Two pathways, respiratory and renal. Again, the CRF issue above. Respiratory acidosis should be resolved via ventilation (Vent chew me out if I'm dead wrong). Treatment: Most likely effective ventilations. (people please add, this one is pretty lacking on my behalf).....
depends on the severity of acidosis. in severe cases bicarb drips are in order. Possible bolus in the arrest scenario
Cardiac Tamponade --- Blunt chest injuries (penetrating too I guess), pericarditis, myocardial rupture. The pericardial sac cannot hold a lot of fluid as we all know, I believe it's 150cc in the acute settings? Treatment: None prehospital other than recognition, thank god we lost MOST prehospital pericardialcentisis (I really don't care to know who still can...)
You make it sound hard or scary. probably easier than an ET tube with the proper education
Tension Pneumothorax --- Everyone knows this one, it was the "fun one in school (GSW)" Treatment: Pleural decompression. Chest tube in hospital
Has other causes as well
Trauma --- Easy to recognize. Treatment: Usually called before resuscitation is initiated... otherwise I'd say surgery.
surgical intervention is reasonable in many penetrating trauma arrests. In blunt force, it is a discharge to the ECU. (eternal care unit)
Toxins --- Everything from organophosphate poisoning, to carbon monoxide, to narcotics, to calcium channel OD, to the snake bite. Treatment: Varies too widely to mention..
indeed, just wanted to mention that for the organophosphate, there is probably not enough atropine on the rig.
Thrombosis --- Consider for pts with cardiac hx, to DVT to a recent airline flight. If it is responsible for an arrest I'd suspect etiology of a MI, CVA or PE. Treatment: They be dead... perhaps thrombolytics if there's ROSC? Wonder if a hospital would bother for even a ROSC with long down time?..
jury is still out, in prehospital arrest, the only european study I saw that addressed this was inconclusive as they intentionally left out the pretreat with ASA.
Well that's it in a nutshell. You have to recognize the cause of the arrest to effectively treat it; but again like Mr Ryder said, prevention is the cure and if they've coded then it's already too late.
recognizing a potential arrest is very important, particularly in cases like "altered labs" or "haven't been to the doc in years"