In horse trading, an equine prepurchase exam is an examination of a horse requested by the buying party prior to the purchase, in order to identify any preexisting problems which may affect a horse's future performance and reduce buyer risk. The inspection usually consists of four phases in which a veterinarian examines all aspects of the horse's health. [1]
An equine prepurchase exam is carried out by a veterinarian, who must also have a knowledge of the particular horse's breed, prospective use and competition rules, to best assess a horse's current and future soundness. [1] To determine the relative 'soundness' of the horse, veterinarians assess "the health status of the horse together with medical abnormalities", [2] and should explain and record any medical abnormalities/concerns revealed during the exam. However, they are not guaranteeing the soundness of the horse. Veterinarians should be neutral to both buyer and seller to avoid any future discrepancies. [1]
Upon completion of the prepurchase exam, the veterinarian may use a variety of terms to describe the horse's current health status. Buyers are hoping for a horse classified as 'sound' - which "cannot be faulted in any physical way, from the inside out". A horse may be categorized as "serviceably sound" if it has some structural problems, but is able to perform its intended purpose. If a veterinarian deems a horse unfit for its intended use, the horse will most likely be considered "unsound", usually referring to any condition which will severely inhibit the horse from performing, such as dental diseases, blindness or other eye problems, founder and tumors. [3]
The first part of the exam involves thorough identification of the horse, including documentation of color, age and any distinguishing characteristics/scars/brands/tattoos the horse has. The horse's vital signs are also assessed, along with an examination of the horse's eyes, teeth and manure. A urine sample is usually required of competition horses to ensure the absence of performance-altering medications. According to the Merck Veterinary Manual, the date, time and place of the examination should also be recorded. [1]
The second phase of the exam begins with a general assessment of the horse's body and skin condition. The veterinarian normally assigns the horse a body condition score from 1 to 9, with 1 being emaciated and 9 being obese. Scores of 4, 5, or 6 are within the acceptable range for performance, breeding and halter horses. [1]
After a visual assessment of the horse, the veterinarian then begins palpation of the limbs. By watching the horse perform a variety of movements on different surfaces, the veterinarian is able to evaluate the horse's general soundness. Riding the horse is sometimes incorporated into the exam, depending on the intended use of the horse. The veterinarian can also ask the horse to move in straight lines and circles to reveal any blemishes. A passive/active flexion test is commonly performed along with a thorough hoof examination. A basic neurological exam may also be part of this third examination phase. [1]
The fourth and final phase of the exam is known as the 'diagnostic' phase. Radiography, nuclear scans and ultrasonography may be necessary to determine soundness, with special emphasis placed on the examination of the navicular bone and distal phalanx. Higher radiographic grades of these areas are usually indicative of lameness and should be noted in a prepurchase exam. [1]
A veterinarian (vet), also known as a veterinary surgeon or veterinary physician, is a professional who practices veterinary medicine by treating diseases, disorders, and injuries in non-human animals.
Colic in horses is defined as abdominal pain, but it is a clinical symptom rather than a diagnosis. The term colic can encompass all forms of gastrointestinal conditions which cause pain as well as other causes of abdominal pain not involving the gastrointestinal tract. The most common forms of colic are gastrointestinal in nature and are most often related to colonic disturbance. There are a variety of different causes of colic, some of which can prove fatal without surgical intervention. Colic surgery is usually an expensive procedure as it is major abdominal surgery, often with intensive aftercare. Among domesticated horses, colic is the leading cause of premature death. The incidence of colic in the general horse population has been estimated between 4 and 10 percent over the course of the average lifespan. Clinical signs of colic generally require treatment by a veterinarian. The conditions that cause colic can become life-threatening in a short period of time.
Laminitis is a disease that affects the feet of ungulates and is found mostly in horses and cattle. Clinical signs include foot tenderness progressing to inability to walk, increased digital pulses, and increased temperature in the hooves. Severe cases with outwardly visible clinical signs are known by the colloquial term founder, and progression of the disease will lead to perforation of the coffin bone through the sole of the hoof or being unable to stand up, requiring euthanasia.
Bog spavin is a swelling of the tibiotarsal joint of the horse's hock which, in itself, does not cause lameness. The joint becomes distended by excess synovial fluid and/or thickened synovial tissue bringing about a soft, fluctuant swelling on the front of the joint, as well as in the medial and lateral plantar pouches. Bog spavin is generally an indication of underlying pathology within the joint.
Sidebone is a common condition of horses, characterized by the ossification of the collateral cartilages of the coffin bone. These are found on either side of the foot protruding above the level of the coronary band. The lateral cartilages support the hoof wall and provide an important role in the support and cushioning provided to the heel. The front feet are most commonly affected.
Wry nose is a deviation of the rostral maxilla, meaning that the upper jaw and nose are deviated to one side. This usually causes the nasal septum to be deviated as well, resulting in obstruction of the airway, and breathing difficulties. Wry nose is most obvious in species with long faces, such as horses and cattle. It is a congenital abnormality, meaning that it is present at birth.
There are many aspects to horse management. Horses, ponies, mules, donkeys and other domesticated equids require attention from humans for optimal health and long life.
Choke is a condition in horses in which the esophagus is blocked, usually by food material. Although the horse is still able to breathe, it is unable to swallow, and may become severely dehydrated. A secondary condition, aspiration pneumonia, may also develop if food material and saliva accumulate in the pharynx, spilling into the trachea and into the lungs. Choke is one of the "top 10" emergencies received by equine veterinarians.
Equine nasal cysts are abnormal fluid filled sacs which occur inside the nasal sinuses of horses. The cysts are lined with epithelium, and usually occur in the ventral conchae or maxillary sinuses, most commonly in horses less than one year old. Surgical removal of the cyst has a good prognosis for the horse.
Ethmoid hematoma is a progressive and locally destructive disease of horses. It is indicated by a mass in the paranasal sinuses that resembles a tumor, but is not neoplastic by any means. The origins and causes of the ethmoid hematoma are generally unknown. Large hematomas usually start within the ethmoid labyrinth, and smaller ones tend to begin on the sinus floor.
Veterinary dentistry is the field of dentistry applied to the care of animals. It is the art and science of prevention, diagnosis, and treatment of conditions, diseases, and disorders of the oral cavity, the maxillofacial region, and its associated structures as it relates to animals.
Grass sickness, alternatively termed equine dysautonomia, is a rare but predominantly fatal illness in horses. Grass sickness may affect all types of horse, pony and donkey, and has affected some well known horses including the thoroughbred stallions Dubai Millennium, Moorestyle and Mister Baileys.
Recurrent airway obstruction, also known as broken wind, heaves, wind-broke horse, or sometimes by the term usually reserved for humans, chronic obstructive pulmonary disease or disorder (COPD) – it is a respiratory disease or chronic condition of horses involving an allergic bronchitis characterised by wheezing, coughing and laboured breathing.
A flexion test is a preliminary veterinary procedure performed on a horse, generally during a prepurchase or a lameness exam. The purpose is to accentuate any pain that may be associated with a joint or soft-tissue structure, allowing the practitioner to localize a lameness to a specific area, or to alert a practitioner to the presence of sub-clinical disease that may be present during a pre-purchase exam.
A hard keeper or poor doer is a horse or other livestock animal that is naturally prone to be thin, will lose weight quickly, and has difficulty gaining weight.
Lameness is an abnormal gait or stance of an animal that is the result of dysfunction of the locomotor system. In the horse, it is most commonly caused by pain, but can be due to neurologic or mechanical dysfunction. Lameness is a common veterinary problem in racehorses, sport horses, and pleasure horses. It is one of the most costly health problems for the equine industry, both monetarily for the cost of diagnosis and treatment, and for the cost of time off resulting in loss-of-use.
Veterinary chiropractic, also known as animal chiropractic, is the practice of spinal manipulation or manual therapy for animals. Veterinary chiropractors typically treat horses, racing greyhounds, and pets. It has become a fast developing field in animal alternative medicine.
A neurological disorder is any disorder of the nervous system. Structural, biochemical or electrical abnormalities in the brain, spinal cord or other nerves can result in a range of symptoms. Examples of symptoms include paralysis, muscle weakness, poor coordination, loss of sensation, seizures, confusion, pain and altered levels of consciousness. There are many recognized neurological disorders, some relatively common, but many rare. They may be assessed by neurological examination, and studied and treated within the specialities of neurology and clinical neuropsychology.
Guttural pouches are large, auditory-tube diverticula that contain between 300 and 600 ml of air. They are present in odd-toed mammals, some bats, hyraxes, and the American forest mouse. They are paired bilaterally just below the ears, behind the skull and connect to the nasopharynx.
Veterinary medicine in the United States is the performance of veterinary medicine in the United States, normally performed by licensed professionals, and subject to provisions of statute law which vary by state. Veterinary medicine is normally led by veterinary physicians, termed veterinarians or vets.