The call comes at 9 PM on a Tuesday. A horse is down, rolling, sweating, and the owner is panicking. The nearest equine hospital is seventy minutes away by trailer. You are thirty minutes out. You are the only veterinarian available.
This is the defining challenge of solo mobile equine practice. There is no partner to consult, no technician to prep while you drive, no ICU to hand the patient off to. Every decision — triage, stabilize, treat, or refer — rests entirely on you. The quality of your emergency response depends less on what you know in the moment and more on the systems you built before the phone rang.
The Emergency Mindset
Before discussing specific emergencies, address the mental framework. Emergency medicine in the field, alone, requires a different cognitive approach than emergency medicine in a clinic.
Decide your decision point before you arrive. While driving to the call, clarify your decision tree. Based on the phone report, what are the most likely scenarios? For each scenario, what is your threshold for field treatment versus referral? What resources do you have on the truck tonight? Making these frameworks explicit before you are standing over a distressed horse with an anxious owner prevents the most dangerous error in emergency medicine: delayed decision-making.
Triage the situation, not just the patient. Assess the environment as you pull in. Is there adequate lighting? Is the horse in a safe location for treatment? Is the owner calm enough to assist, or do you need them to step back? Can a trailer be loaded if referral becomes necessary? These logistical factors shape your treatment options as much as the clinical picture.
Communicate your plan out loud. Even if the only people listening are the owner and a barn cat, narrating your thought process serves two purposes: it structures your own thinking under stress, and it manages the owner's expectations in real time. "I am going to sedate him, pass a nasogastric tube, and evaluate what comes back. Based on those findings, I will decide whether we can manage this here or whether he needs to go to the hospital."
Common Equine Emergencies and Field Protocols
Colic
Colic accounts for more emergency calls than any other condition in equine practice. Your field evaluation determines whether this horse resolves with medical management or needs surgical intervention — and that determination needs to happen within the first twenty minutes.
Initial assessment protocol:
- Heart rate, respiratory rate, temperature, mucous membrane color and capillary refill time, gut sounds in all four quadrants, digital pulses.
- Pain assessment: Is the horse standing and uncomfortable, intermittently pawing, or uncontrollably violent? Pain severity does not always correlate with surgical urgency, but unresponsive pain is a red flag.
- Sedation with detomidine and butorphanol for safe examination if the horse is thrashing.
- Nasogastric intubation. Significant reflux (more than two liters of spontaneous reflux) suggests proximal obstruction and tips the decision toward referral.
- Rectal examination if safely possible. Distended large colon, tight bands, displaced viscera — these findings change your management plan.
Field treatment for medical colic:
- IV fluids if you carry them (10-20 liters of LRS via large-bore catheter). Oral fluids via nasogastric tube (6-8 liters of warm water with electrolytes) for impactions.
- Flunixin meglumine for pain management and anti-endotoxemic effects. Note the dose and time — you may need to communicate this to the referral hospital.
- Buscopan for spasmodic colic.
- Walking if the horse is safe to walk. Not if the horse is violently painful — a 1,200-pound animal going down while being led is dangerous for everyone.
Referral triggers: Unresponsive pain despite adequate analgesia. Significant nasogastric reflux. Rectal findings consistent with displacement or strangulation. Heart rate persistently above 60 despite treatment. Deteriorating mucous membrane color. If any of these are present, the conversation with the owner shifts immediately to transport.
Lacerations and Wound Emergencies
Equine lacerations range from superficial skin wounds to limb-threatening injuries involving tendons, joints, and synovial structures. Your field assessment determines the tier of response.
Critical assessment questions:
- Is a synovial structure involved? Wounds near joints, tendon sheaths, or bursae require synovial fluid evaluation. If you suspect synovial penetration, this horse needs referral for lavage under general anesthesia — not a field repair.
- Is a tendon or ligament compromised? Palpate the structures distal to the wound. Complete severance of the SDFT or DDFT is a referral case. Partial injuries may be managed in the field with appropriate immobilization.
- What is the blood loss? Arterial bleeding from a distal limb laceration can be dramatic. Direct pressure, a tourniquet (brief application only), and hemostats on visible vessels are your field tools. Most equine lacerations look worse than they are hemodynamically.
Field laceration management:
- Sedate and provide regional or local anesthesia.
- Clip, lavage extensively (minimum 1 liter of sterile saline under pressure for contaminated wounds), and debride devitalized tissue.
- Assess wound geometry. Primary closure is appropriate for clean, fresh wounds with good apposition. Wounds older than six to eight hours, heavily contaminated, or under tension heal better by second intention with appropriate bandaging.
- Bandage with attention to immobilization if the wound is on a limb. A well-applied Robert Jones bandage provides support and compression for distal limb wounds.
- Tetanus prophylaxis — toxoid if the horse is current on vaccination, antitoxin if vaccination status is unknown or lapsed.
- Antimicrobial therapy based on wound contamination level.
Fractures
Field fracture management is almost entirely about stabilization for transport, not definitive treatment. Your goals are pain management, immobilization to prevent further damage, and getting the horse to a surgical facility — or, in some cases, managing the difficult conversation about humane euthanasia.
Stabilization principles:
- Splint the limb in the position found. Do not attempt reduction in the field.
- For distal limb fractures (below the carpus or hock), a Kimzey splint or improvised support using PVC pipe and heavy bandaging can stabilize for transport.
- For proximal limb fractures, immobilization options are limited. A full-limb splint or cast applied in the field by an experienced practitioner can allow transport for humeral, femoral, or pelvic fractures in select cases.
- Pain management is critical. A horse in severe pain will not load safely, and transport with an unstabilized fracture causes further soft tissue damage.
The euthanasia conversation: Some fractures — comminuted P1 in an aged horse, open fractures with severe contamination, complete humeral fractures in adult horses — carry a prognosis that makes referral and surgical repair unrealistic or inhumane. Having this conversation with an owner while standing in a field at midnight is one of the hardest things in equine practice. Be direct, be compassionate, and be clear about what the horse is experiencing. Owners deserve honest information to make a humane decision.
Dystocia
Equine dystocia is a true time-critical emergency. Once second-stage labor begins, the foal's oxygen supply via the placenta is compromised, and viability declines rapidly — you have roughly thirty minutes.
Field management priorities:
- Sedate the mare if she is straining violently (this is counterintuitive but prevents further impaction of the foal in a malpresentation).
- Assess the presentation. Normal: both forelimbs extended with the head between them. Any deviation requires correction.
- Repel and reposition if possible. Elevating the mare's hindquarters (if she is down, rolling her so her hindquarters are uphill) can give you working room.
- If repositioning fails within ten to fifteen minutes, this mare needs a referral hospital for controlled vaginal delivery under general anesthesia or cesarean section. Do not persist with field manipulation beyond your ability to correct the malpresentation — you risk uterine rupture and mare mortality.
- If the foal is delivered, clear the airway immediately and stimulate breathing. Manage the umbilicus. Ensure colostrum intake within two hours.
Emergency Kit Organization
Your emergency kit is not your daily-use truck inventory — it is a separate, grab-and-go setup that you can access in under sixty seconds.
Organize by function, not by item type:
- Triage bag: Stethoscope, thermometer, penlight, watch with seconds (for heart rate), nasogastric tube, stomach pump, sedation drugs pre-drawn or immediately accessible.
- Fluid therapy kit: Catheter supplies (14-gauge catheters, extension sets, tape), IV fluid bags, administration sets, pressure infuser bag.
- Wound management kit: Sterile saline for lavage, suture material, local anesthetic, bandaging supplies (combine rolls, cotton batting, elastic bandage), hemostats, sterile instrument pack.
- Emergency drugs: Epinephrine, atropine, dexamethasone, flunixin, detomidine, butorphanol, xylazine, ketamine. Dosage charts for common weight ranges taped to the kit lid.
Check and restock this kit weekly — not after you use it and forget, but on a scheduled day regardless of whether it was opened.
Communicating with Referral Hospitals
When you decide to refer, the quality of your handoff directly affects the patient's outcome at the receiving hospital.
Call ahead with a structured report: Patient signalment, presenting complaint, your clinical findings, treatments administered (drugs, doses, times), and your clinical assessment. The receiving surgeon should know what is coming before the trailer arrives.
Send records electronically. If your practice management software can transmit the encounter record — exam findings, vitals, drug administration times, and any images — to the referral hospital digitally, do it. A surgeon reviewing your field notes and radiographs while the horse is in transit gains critical decision-making time. This is where having your documentation in a system rather than on paper scraps makes a tangible clinical difference.
Follow up. Call the hospital the next day for an outcome report. Document the referral outcome in your patient record. Communicate the result to the owner if they are not already in direct contact with the referral hospital. This continuity loop matters for the patient's ongoing care when it returns to your practice.
Documenting Emergency Cases
Emergency documentation is paradoxically both the most important and the most neglected. The case that most needs a complete record — for continuity, for liability protection, for learning — is the one where you were least able to write notes in real time.
Use your phone's voice recorder during emergencies. A running audio log — "9:47 PM, heart rate 64, CRT three seconds, no gut sounds right dorsal quadrant, administering flunixin 500 mg IV" — gives you a timestamped record you can transcribe later. Some practice management systems support audio attachment to patient records, which preserves the original documentation alongside the polished notes.
At minimum, within one hour of leaving the emergency, record: time of arrival, initial findings, treatments administered with times and doses, clinical progression, and disposition (resolved in field, referred, or euthanized). The details you think you will remember tomorrow will be gone by Friday.
Sustaining Yourself
Solo emergency practice is physically and emotionally demanding. Establish boundaries that keep you functional: a defined on-call rotation if you share territory with colleagues, a clear after-hours policy communicated to clients, and the self-awareness to recognize when fatigue is compromising your clinical judgment.
You chose this work because you are capable of handling it. Build the systems that prove it — not just to your clients, but to yourself at 2 AM when the next call comes in.