Chapter 22 Part 1 Flashcards
Poison
Any substance—liquid
Toxicology
The study of toxins
Toxin
A drug or substance that is poisonous to a human and causes certain adverse effects that can potentially lead to death.
Overdose
A poisoning in which the patient has been exposed to an excessive dose of a drug.
Substance Abuse
The inappropriate use of a substance or medication.
Ingestion
A route by which a drug or substance can be swallowed with absorption occurring through the gastrointestinal tract.
Inhalation
Breathing a poison—typically a gas
Injection
A route by which a poison can be injected under the skin
Pulmonary Edema
Fluid leaking around and into the alveoli
Bronchospasm
Contraction of the muscles in the bronchi and bronchioles
Local Reaction
A reaction to a poison that typically causes edema (swelling) at the site of injection
Systemic Reaction
A reaction that can occur from injection of a poison
Accidental Poisoning
Poisonings that are unintentional and often involve young children.
Household Chemicals
Substances that are most often involved in unintentional or accidental poisonings.
Homicide
Intentional poisonings that result in the death of another person.
Suicide
Intentional poisonings that result in the death of the individual.
Gastrointestinal Tract
The system in the body through which ingested substances are absorbed
Alveoli
Tiny air sacs in the lungs where gas exchange occurs
Edema
Swelling caused by excess fluid trapped in the body’s tissues.
Signs and Symptoms
Indicators of poisoning that can vary based on the route of exposure and type of poison.
Respiratory Distress
Severe difficulty in breathing that can indicate the presence of an inhaled poison.
Delayed Effect
A situation where the signs and symptoms of poisoning may not present for several hours after exposure.
Acid Poisoning
Poisoning caused by contact with strong acids
Injection Poisonings
Poisonings that can result from drug use or from bites and stings.
Hymenoptera
An order of insects that includes bees
Anaphylactic Reaction
The most severe type of allergic reaction that can result from injection of venom.
Absorption
The process by which a poisonous substance can enter the body when it contacts the skin or mucous membranes.
Severe Absorption Poisoning
Results from pesticides and other lethal substances that contact the skin.
Organophosphates
Commonly found in certain pesticides
Toxidromes
Signs and symptoms of poisoning that depend on the specific poison and the route of entry into the body.
Bradycardia
A condition that might occur from poisoning
Tachycardia
A condition that might occur from poisoning
Tachypnea
A condition that might occur from poisoning
Hypotension
A condition that might occur from poisoning
Hypertension
A condition that might occur from poisoning
Corrosive Poison
A type of poison that can cause burns to the lips and inside the mouth.
Patent Airway
An airway that is open and unobstructed
Positive Pressure Ventilation
A method provided for inadequate breathing to maintain adequate oxygenation.
Lateral Recumbent Position
The position in which a patient is placed to closely monitor the airway after ingestion of poison.
Mental Status Deterioration
A sudden decrease in mental status that can indicate rapid patient deterioration.
Emergency Care
Supportive care that must be established and maintained regardless of the poison or route.
Reassessments
Necessary actions to monitor the breathing status and prepare to ventilate if necessary.
Vomiting
A common occurrence in persons poisoned by ingestion
Aspiration of vomitus
The act of inhaling vomit into the lungs
Antidote
A substance that neutralizes the effects of the poison or toxic substance.
True antidotes
Antidotes that are available for only a small number of poisons.
Treatment of poisons
Generally limits or prevents the absorption of the poison and manages any other signs and symptoms.
Supportive care
Care that supports the airway
ALS unit
An Advanced Life Support unit that can have medications to reverse the effects of certain toxins.
Naloxone (Narcan)
A drug that can reverse the effects of a narcotic (opioid) overdose.
Ingested poison
A poison that is swallowed and enters the gastrointestinal system.
Absorption of poison
Most of the absorption occurs in the small intestine
Common causes of accidental ingestion
Taking too much prescribed medication
Poisonous plants
Common household and backyard plants that can cause poisoning
Scene size-up
The process of observing clues indicating an ingested poisoning during the assessment.
Primary assessment
A vital step in managing the poisoned patient that can provide clues about the time since ingestion.
Altered mental status
A change in mental state that indicates the poison is absorbed into the bloodstream and having systemic effects.
Common poisonous substances
Prescription medications
Poisonous mushrooms
A high number of poisonings result from eating wild mushrooms.
Signs of poisoning
Clues such as overturned medicine bottles
Gastrointestinal system
The system that ingests poisons
Time since ingestion
Determining this can change the treatment the patient receives.
Poisoning emergencies
Commonly occur due to accidental ingestion
Household products
Common items that can be poisonous
Positioning and suctioning
Methods to prevent aspiration of vomitus in a poisoned patient.
Monitoring of airway
Close observation of the airway to prevent complications in a poisoned patient.
Alert and Oriented
Indication that the poison has not yet been absorbed in a large quantity or that a large quantity was not ingested by the patient.
Altered Mental Status
A condition that necessitates opening and clearing the airway.
Lateral Recumbent Position
Position to reduce the possibility of aspiration in a patient with altered mental status.
Oropharyngeal Airway
Device that may need to be inserted to effectively ventilate a poisoned patient.
Nasopharyngeal Airway
Another device that may be inserted to effectively ventilate a poisoned patient.
Inadequate Breathing
A condition that requires assessment of respiratory rate and quality.
Positive Pressure Ventilation
Intervention provided with a bag-valve mask or other ventilation device if respiratory rate or depth is inadequate.
Hypoxia
Condition that may require administration of oxygen via a nasal cannula.
Hypoxemia
Condition that may require administration of oxygen via a nasal cannula.
Poor Perfusion
Condition that may require administration of oxygen via a nasal cannula.
Cardiopulmonary Resuscitation Protocol
Action to proceed with if the pulse is absent.
Secondary Assessment
Most information about an ingested poisoning is obtained during this phase.
Common Poisons in Children
Plants
Pupils and Skin Condition
Two extremely important areas to examine during the assessment of a poisoning patient.
Liquid Acid Ingestion
Likely to cause more severe tissue damage to the stomach lining than to the esophagus.
Ingested Alkali Substances
Cause more severe damage compared to liquid acids.
Patient History
Information that is crucial for managing a poisoning patient but may be difficult to obtain accurately.
Intentional Overdose
A scenario where the patient may be misinformed or trying to deceive regarding their history.
Accidental Death Cause in Children
Poisoning is the number one cause.
Respiratory Drive Depression
Many poisons can lead to this condition
Chest Rise and Fall Monitoring
Important to closely monitor in a poisoned patient.
Skin Temperature
Color
Substance Ingestion
The act of taking in a substance
Alcohol Ingestion
The consumption of alcohol with a substance
Time of Ingestion
The timing of when the patient ingested the poison
Duration of Exposure
The span over which the substance was ingested or the patient was exposed
Amount of Substance Taken
The quantity of the substance ingested
Previous Treatment Attempts
Any prior attempts to treat the poisoning
Psychiatric History
The patient’s mental health background that may suggest a possible suicide attempt.
Underlying Medical Conditions
Existing health issues
Patient Weight
The patient’s weight
Available Medications
Medications present in the house that could indicate the source of poisoning.
Physical Exam
An assessment of the patient’s body systems and areas of complaint to identify abnormalities.
Vital Signs
Measurements of physiological functions that have limited role in assessing poisoning severity.
Signs and Symptoms of Poisoning
Indicators of poisoning that can vary based on the ingested substance.
History of Ingestion
Documentation of the patient’s past consumption of substances.
Swelling of Mucosal Membranes
Inflammation in the mouth caused by caustic substances.
Nausea
A feeling of sickness with an inclination to vomit.
Vomiting
The act of expelling the contents of the stomach through the mouth.
Diarrhea
Frequent and watery bowel movements
Altered Mental Status
Changes in consciousness or cognitive function due to poisoning.
Abdominal Pain
Discomfort in the abdominal area
Burns or Stains Around the Mouth
Injuries or discoloration around the mouth caused by corrosive poisons.
Unusual Breath Odors
Distinct smells on the breath that can indicate specific ingested toxins.
Toxin
Odor
Hydrogen sulfide
Rotten eggs
Naphthalene
camphor
Cyanide
Bitter almonds
Acetone
isopropanol
Organophosphates
Garlic
Petroleum distillates
Gasoline
Chloral hydrate
Pears
Methyl salicylate
Mint
Phosgene
Fresh mowed hay
Respiratory distress
A condition indicating difficulty in breathing.
Altered heart rate
Tachycardia or bradycardia.
Altered blood pressure
Hypertension or hypotension.
Dilated or constricted pupils
Changes in pupil size indicating possible poisoning.
Warm and dry or cool and moist skin
Skin condition changes that may indicate poisoning.
Seizures
Sudden
Activated Charcoal
A medication occasionally used in the emergency medical care of ingested poisonings.
Oropharyngeal airway
A device used to maintain an open airway.