Medication administration in Veterinary Nursing

Nursing Dogs and Cats

Understanding Diagnosis

• Diagnosis in veterinary medicine can be complex, often relying on both clinical signs and the response to medications.

• Symptomatic treatment involves addressing observable signs (e.g., diarrhea) without a definitive diagnosis, which can lead to challenges in treatment efficacy.

• Diagnostic treatment may involve administering a drug to see if the animal responds positively, which can confirm a diagnosis based on the response.

• The veterinarian's experience plays a crucial role in determining the appropriate medication based on clinical signs and past cases.

• Clear communication between veterinary staff is essential to avoid errors in medication administration, which can have serious consequences.

Role of Veterinary Nurses

• Veterinary nurses are responsible for verifying medication orders, ensuring clarity and accuracy to prevent potential errors.

• They must be knowledgeable about pharmacology, including how to fill prescriptions and label medications correctly for pet owners.

• Documentation is critical; nurses must record all administered medications in the medical records, including their initials or signature for verification.

• Educating pet owners on medication administration is a key responsibility, ensuring they understand how to give medications to their pets at home.

• The nurse's role is pivotal in monitoring the animal's response to medications and reporting any adverse effects to the veterinarian.

The Six Rights of Medication Administration

Overview of the Six Rights

• The Six Rights are essential guidelines for safe medication administration in veterinary practice: right patient, right drug, right dose, right route, right time, and right documentation.

• Right patient: Confirm the identity of the animal receiving the medication to prevent errors.

• Right drug: Verify the medication at multiple stages—when pulling it from the shelf, counting, and administering.

• Right dose: Understand the difference between dosage (amount per unit body weight) and dose (total amount for the patient), requiring calculations based on veterinarian instructions.

Importance of Each Right

• Right route: Ensure the medication is administered via the correct method (e.g., IV, subcutaneous) to maximize efficacy and minimize harm.

• Right time: Adhere to the prescribed schedule for medication administration to maintain therapeutic levels in the animal's system.

• Right documentation: Record all medication given, including time, dosage, and any observations, to maintain accurate medical records and ensure continuity of care.

Routes of Medication Administration

Enteral and Parenteral Routes

• Enteral administration involves delivering medication through the gastrointestinal tract, either orally or via a tube.

• Parenteral administration bypasses the GI tract, typically involving injections (e.g., subcutaneous, intramuscular, intravenous).

• Each route has specific indications, advantages, and potential complications that veterinary staff must understand.

Types of Administration Methods

• Inhalation: Medications are delivered in gaseous form, allowing absorption through the respiratory system.

• Topical: Medications applied directly to the skin or mucous membranes, effective for localized treatment.

• Transdermal: Medications that penetrate the skin for systemic effects, often using patches or gels.

Forms of Medications

Types of Oral Medications

• Tablets: Can be scored for division; unscored tablets should not be cut to maintain integrity.

• Capsules: Gelatin containers that may contain other capsules; altering them is illegal and unsafe.

• Liquids: Include solutions (water or alcohol-based) and suspensions, which require shaking before administration.

Legal and Safety Considerations

• Veterinary staff must adhere to legal regulations regarding medication preparation and administration.

• Altering medications without professional guidance can lead to legal repercussions and patient harm.

• Understanding the pharmacological properties of medications is essential for safe and effective treatment.

Overview of Drug Forms and Administration

Types of Drug Forms

• Capsules: Often contain a drug within a soluble or dissolvable capsule. Altering these capsules is illegal and can lead to legal consequences.

• Liquids: Can be classified into solutions (aqueous or alcohol-based) and suspensions (where the drug is suspended in a liquid matrix).

• Syrups: Sugar-based solutions that may contain artificial sweeteners like xylitol, which is toxic to dogs. It's important to avoid using xylitol in any pet medications.

• Pastes: Used for animals that struggle to swallow liquids, such as horses. The paste form allows for easier administration as it stays in the mouth longer.

Inhalation and Topical Medications

• Inhalants: Administered as gases or nebulized forms. Nebulization creates smaller droplets for deeper lung penetration, while mists may not reach as far.

• Topical Medications: Includes emulsions (mixtures of oil and water), ointments (oil-based), creams (water-based), and lotions (can be either). Emulsions require shaking to maintain consistency.

Parenteral Drug Administration

Types of Parenteral Drugs

• Solutions: Typically water-based, suitable for intravenous (IV) administration. Non-water-based solutions can cause separation issues in plasma.

• Suspensions: Must be shaken before administration and can only be given intramuscularly or subcutaneously, as IV administration can lead to complications.

• Oil-based Drugs: Administered intramuscularly to slow absorption rates.

Implants and Absorption Mechanisms

• Implants: Placed under the skin for slow drug release, often used in veterinary medicine.

• Gastrointestinal (GI) Absorption: Drugs administered orally must pass through the GI tract and mucosal walls to enter systemic circulation, often processed by the liver first.

Pharmacokinetics and Administration Considerations

Factors Affecting Drug Absorption

• Route of Administration: Oral administration is slower due to the need for GI absorption, while IV administration provides immediate effects.

• Gastric Acidity: Some drugs may be destroyed by stomach acid, affecting their efficacy if taken orally.

• Metabolism: Rapid metabolism can hinder drug effectiveness if the drug is absorbed slowly.

Contraindications for Oral Administration

• Emesis: Vomiting can prevent effective oral drug administration.

• Trauma: Conditions like fractured mandibles complicate the ability to administer oral medications.

• Swallowing Disorders: Diseases affecting swallowing mechanisms, such as myasthenia gravis, pose risks for aspiration if oral medications are attempted.

Overview of Medication Administration

Importance of Proper Administration

• Administering medications correctly is crucial to avoid complications such as aspiration into the lungs.

• Oral medications can be challenging due to the risk of improper swallowing, especially in uncooperative animals.

• Understanding the anatomy of the animal's mouth and throat is essential for effective medication delivery.

Types of Medications

• Oral Medications: Includes tablets, capsules, and liquids, each requiring different administration techniques.

• Liquid Medications: Often preferred by pets when flavored, making them more palatable.

• Tablets and Capsules: Tablets can be scored for easier division, while capsules are gelatin-coated and sensitive to moisture.

Techniques for Administering Oral Medications

Using Pilling Devices

• Pilling devices can help deliver pills into the animal's mouth but must be used carefully to avoid injury.

• The device should be inserted into the pharynx without excessive force to prevent tearing.

Manual Administration Techniques

• For cooperative dogs, use one hand to hold the upper jaw and the other to place the pill over the base of the tongue.

• Tilt the dog's head back slightly to facilitate swallowing, ensuring the pill is placed far enough back to trigger the swallowing reflex.

• For uncooperative animals, techniques such as using a sticky pill (with butter or water) can help in getting the pill down.

Special Considerations for Cats

• Cats require a different approach; control the head by wrapping fingers around the muzzle and applying pressure to open the mouth.

• Place the pill over the base of the tongue, avoiding any contact with the cat's taste buds to prevent salivation and spitting.

Administering Liquid Medications

Techniques for Liquid Administration

• Liquid medications can be administered by placing a syringe in the buccal pouch (the space between the teeth) and tilting the head back.

• Trigger the swallowing reflex by gently rubbing the throat or touching the tip of the nose to encourage licking.

Use of Orogastric Tubes

• Orogastric tubes are used for administering substances like activated charcoal or for gastric lavage in cases of poisoning.

• Proper placement is critical; incorrect placement can lead to aspiration or injury.

Tools and Equipment for Medication Administration

Essential Tools

• Orogastric Tube: Size varies based on the animal; used for direct delivery of medications to the stomach.

• Speculum: Helps keep the mouth open and prevents biting during tube insertion.

• Syringe: Used for administering liquids or flushing the tube.

Safety Precautions

• Always use a water-soluble lubricant for the orogastric tube to ease insertion.

• Ensure proper restraint of the animal to prevent injury during the procedure.

QUICK REFERENCE

Key Procedures/Protocols

Key Drugs

• Activated Charcoal: Used to treat poisoning by absorbing toxins in the gastrointestinal tract.

• Xylitol: An artificial sweetener that is toxic to dogs and should be avoided in medications.

Key Complications

• Aspiration: Occurs when substances enter the lungs instead of the stomach, potentially leading to pneumonia.

• Incorrect Tube Placement: Inserting an orogastric tube into the trachea instead of the esophagus can be fatal.

Key Assessment Techniques

• Pilling Techniques: Methods for administering pills to animals, including using fingers or pilling devices to ensure the pill reaches the back of the throat.

Facts to Memorize

• The 6 Rights of Medication Administration: Right Patient, Right Drug, Right Dose, Right Route, Right Schedule, Right Documentation.

• Xylitol is toxic to dogs.

Reference Information

• Dosage vs. Dose: Dosage is the amount of drug per unit body weight, while Dose is the total amount given to the patient.

• Routes of Administration: Enteral, Inhalation, Topical, Transdermal, Parenteral.

Concept Comparisons

Problem-Solving Steps

1. Verify the medication order for clarity and accuracy.

2. Confirm the patient's identity using two identifiers.

3. Calculate the correct dose based on the dosage provided by the DVM.

4. Check the medication label three times: when pulling it from the shelf, when preparing it, and before administration.

5. Determine the correct route of administration (IV, IM, SC, etc.).

6. Administer the medication and document the administration in the medical record.