VTNE key terms

The study of how the body absorbs, distributes, metabolizes, and excretes a drug over time. These processes determine the dose, route, and dosing interval needed to keep drug levels effective and safe.

The amount of an orally given drug that is removed by the liver before it reaches the rest of the body. A strong first-pass effect can make oral dosing unreliable or require a higher dose.

The proportion of an administered drug dose that reaches the bloodstream in an active form. Intravenous drugs are taken as fully available, while oral drugs may be reduced by poor absorption or liver metabolism.

The time it takes for the amount of drug in the body, or its blood concentration, to fall by half. It helps predict how often to dose and how long effects or residues may last.

The required waiting period after the last drug dose before an animal, or its milk or eggs, can be sold for human food. It prevents illegal drug residues from reaching consumers.

Using a drug in a way not listed on its approved label, such as a different dose, species, or condition. In the United States it requires a valid veterinarian-client-patient relationship and careful records.

Steps taken to keep microorganisms out of a wound or sterile area during a procedure. It includes hand scrubbing, sterile gloves and drapes, and avoiding contact with nonsterile surfaces.

A timed washing of the hands and forearms with an antiseptic agent before surgery, usually followed by a sterile gown and gloves. It lowers the number of skin bacteria that could enter the surgical site.

An area, such as a draped table or prepared skin, that is kept free of microorganisms during a procedure. Only sterile instruments and sterile-gloved hands may touch it.

Cleaning the skin where an incision will be made, usually by clipping hair and applying an antiseptic in a widening circular pattern. It reduces contamination before draping and surgery.

Counting surgical sponges, needles, and small instruments before and after a procedure to confirm nothing was left inside the patient. A discrepancy must be resolved before the wound is closed.

Separation of a surgical incision's layers after closure, ranging from a small gap to a full opening with tissue or organs exposed. Full abdominal dehiscence is an emergency requiring immediate support and repair.

Inflammation and destruction of the tissues that hold teeth in place, including gums, ligament, and bone. It starts as gingivitis and can lead to tooth loss, pain, and effects on other organs.

Inflammation of the gums, seen as redness, swelling, and bleeding along the tooth margin. It is reversible with plaque removal and professional cleaning if the deeper tissues are not yet damaged.

Hardened plaque, also called tartar, that sticks to tooth surfaces and cannot be brushed away. It traps bacteria and irritates the gums, contributing to gingivitis and periodontal disease.

Professional cleaning of the teeth that removes plaque and calculus above and below the gumline, usually under anesthesia in animals. It also allows a complete oral examination and polishing.

The percentage of a blood sample's volume made up of red blood cells after spinning it in a centrifuge. It quickly shows anemia or dehydration and is often read alongside total protein.

A thin layer of blood spread on a slide and stained for microscopic study of cell shape, size, and number. It helps detect anemia, infection, and platelet problems.

The clear liquid left after a blood sample clots and the clot is removed. Unlike plasma, it contains no clotting factors, so it is often used for chemistry tests.

A blood test panel that measures red cells, white cells, platelets, hemoglobin, and related values. It screens for anemia, infection, inflammation, and bleeding disorders.

A laboratory method that separates parasite eggs and cysts from feces so they float in a solution and can be seen under a microscope. It is used to diagnose intestinal parasites.

A standardized rating of an animal's fat cover, often on a 1-to-9 or 1-to-5 scale, based on ribs, waist, and overall shape. It helps guide feeding and monitor weight trends.

An infectious disease that can pass from animals to people, such as rabies, ringworm, or salmonellosis. Prevention includes hand washing, protective equipment, and client education.

Temperature, pulse, and respiration rate, often checked with mucous membrane color and capillary refill. They establish a baseline and reveal changes in a patient's condition.

A set of rules to stop infectious agents from spreading, such as separate housing, dedicated equipment, protective clothing, and strict hand hygiene. It protects other patients, staff, and owners.

The concentration of an inhaled anesthetic in the lungs that prevents movement in half of patients exposed to a painful stimulus. It is used to compare anesthetic potency and guide vaporizer settings.

Placing a tube through the mouth into the trachea to deliver oxygen and anesthetic gas and to protect the airway. Tube position must be confirmed before the procedure continues.

Continuous measurement of carbon dioxide in exhaled breath, shown as a waveform and number. It confirms tube placement, monitors breathing, and can signal poor circulation during anesthesia.

Drugs given before anesthetic induction to calm the patient, relieve pain, and reduce the dose of induction and maintenance agents needed. Common choices include sedatives and opioids.

The process of quickly sorting patients by how urgent their condition is so life-threatening problems are treated first. It assesses airway, breathing, circulation, and mental status.

A dangerous state in which poor tissue blood flow causes oxygen shortage and organ damage. Signs can include pale gums, weak pulses, rapid heart rate, and confusion or collapse.

The time for pink color to return to a pressed area of gum after it is blanched, normally under about two seconds. A longer time suggests poor circulation.

Emergency actions to restore breathing and circulation in cardiac arrest, including chest compressions, ventilation, and drug therapy. High-quality compressions and quick defibrillation when available improve survival.

The nervous system's detection and transmission of harmful stimuli from tissues toward the brain. It can happen even when the patient is unconscious and is not the same as perceived pain.

Combining two or more pain-relief methods or drug classes, such as an opioid, an NSAID, and a local block. Targeting different pain pathways improves relief and allows lower doses of each drug.

Giving pain medication before a painful event, such as surgery, to prevent the nervous system from becoming sensitized. It can reduce pain and total drug needs afterward.

A working relationship in which the veterinarian knows the animal and owner well enough to diagnose and treat, and the owner agrees to follow advice. Many prescriptions and extralabel uses require it.

The owner's agreement to a procedure after understanding its benefits, risks, alternatives, and costs. The discussion and decision should be documented in the medical record.

A legal and clinical document of a patient's history, examination findings, treatments, and client communications. It supports continuity of care and provides evidence of what was done and advised.