Preserving circulation while immobilizing the limb is the key idea when applying a splint. Bandages are used to hold the splint in place and protect soft tissues, but they must be snug enough to immobilize without cutting off blood flow. After applying, check distal circulation and sensation—look for a warm color, a normal pulse, and intact feeling—to ensure no compression is occurring. Padding is important to prevent pressure points, and the wrap should secure the splint along the entire length of the injured area, not just around the hand.

The priority is to summon more advanced medical personnel. When you arrive at a scene with suspected substance abuse, bringing in ALS or other advanced responders ensures there’s immediate access to airway control, ventilation support, monitoring, IV access, naloxone administration, and rapid transport. This allows you to provide essential support while awaiting or coordinating definitive care. As part of your rapid assessment, you would still check responsiveness, breathing, and pulse, but delaying to call for backup can hinder the patient’s chances, since overdoses often require interventions that go beyond basic first aid. Administering naloxone is important, but it should follow proper protocol and under appropriate supervision once advanced help is en route or present. Beginning chest compressions is appropriate only if there is no pulse.

Suspected anaphylaxis requires rapid treatment to support breathing and circulation and to prevent a rapid decline. The priority is to get advanced help while starting life-saving measures right away. If you’re trained to assist with an epinephrine auto-injector, administer it as soon as you can follow the instructions, then stay with the patient to monitor their condition and provide support. Calling EMS ensures that ALS is en route if the reaction worsens or if there are airway or breathing issues, and it allows for potential additional treatments and transport to a hospital. After giving epinephrine, continue monitoring the patient and arrange for transport so they can receive definitive care and observation, since symptoms can recur or worsen after the first dose. Antihistamines alone do not treat the rapid and potentially life-threatening effects of anaphylaxis, and simply removing exposure or giving water does not address the systemic reaction.

An asthma attack in an ED setting is identified by respiratory distress with bronchospasm, most clearly wheezing and shortness of breath. The priority is rapid bronchodilation to reverse airway narrowing, so the best action is to assist with a fast-acting inhaler (or deliver via nebulizer) per your local protocol, along with oxygen if needed to maintain adequate saturation. After administering the bronchodilator, continuously reassess the patient’s breathing, allow additional doses as permitted, and consider systemic steroids to reduce airway inflammation. The aim is quick relief of symptoms and prevention of deterioration, with escalation to more advanced airway support if the patient shows signs of fatigue, rising work of breathing, or declining oxygen levels. Other sketches of symptoms point to different emergencies: chest pain with fever suggests infection or cardiac issues; severe hypertension with diuretics targets blood pressure, not bronchospasm; hypotension with bradycardia requiring immediate intubation indicates impending or established airway failure rather than an initial asthma presentation.