Animal Health Foundations for Horses: Assessment, Prevention, First Aid, and Medications

Vitals

Measurable body functions that indicate how well an animal's major systems are working.

TPR

Temperature, pulse, respiration - key indicators used in routine health checks.

Rectal temperature

Internal heat balance measurement for a horse, typically between 37.2–38.6 °C.

Pulse rate

Heartbeats per minute, indicating cardiovascular status; resting range for horses is 28–44 beats/min.

Respiration rate

Breathing rate of an animal; resting range for horses is 8–16 breaths/min.

Mucous membrane color

Indicates oxygenation and circulation; healthy gums are moist and pink.

Capillary refill time (CRT)

Time for color to return to gums after pressing; target is under 2 seconds.

Body Condition Scoring (BCS)

A system to estimate fat cover and overall energy reserves in horses.

Henneke scale

A standard 1–9 scale used for body condition scoring in horses.

Low BCS

A score suggesting inadequate intake, heavy parasite burden, or chronic disease.

High BCS

A score that increases the risk of metabolic and orthopedic problems.

Preventative health measures

Practices aimed at reducing the chance of disease and catching problems early.

Biosecurity

Practices to reduce disease introduction and spread among animals.

Vaccination

Helps the immune system recognize diseases; must be specific to region and risk assessment.

Parasite control

Management that should be guided by veterinary advice to avoid resistance.

First aid

Immediate care given until veterinary help is available to preserve life and reduce complications.

Emergency signs

Severe conditions requiring immediate veterinary contact, such as severe bleeding or breathing difficulty.

ADME

Absorption, distribution, metabolism, excretion – how the body processes a drug.

Withdrawal time

Minimum time after drug administration before an animal or its products can enter food supply.

Routes of administration

Paths drugs take into the body, affecting speed and risk of onset.

Intravenous (IV)

Route providing the fastest drug onset, but with the highest risk.

Intramuscular (IM)

Injected into muscle; common but may cause pain or abscess.

Subcutaneous (SQ)

Injected under the skin, often easier but with slower absorption.

Quality Assurance (QA)

A process to ensure correct administration and monitoring of treatments.

Five Rights

Concept ensuring the right animal, drug, dose, route, and time during medication administration.

Documentation

Records that ensure accountability and protection for animal and operation.

Local reactions

Swelling, heat, or pain at the injection site after medication administration.

Systemic reactions

Body-wide responses to medications, can indicate severe allergic reactions.