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WorksheetsToxicology Quiz
Total questions: 147
Worksheet time: 1hrs 14mins
Which toxic alcohol is associated with metabolic acidosis, shortness of breath, and CNS depression?
Ethylene glycol
Methanol
Isopropyl alcohol
Ethanol
What is the primary toxic metabolite of ethylene glycol that leads to renal failure?
Formaldehyde
Formic acid
Acetic acid
Glycolic acid
Which phase of ethylene glycol poisoning is characterized by hypertension, tachycardia, and congestive heart failure?
Metabolic phase
Neurological phase
Renal phase
Cardio phase
Methanol poisoning is associated with which triad of symptoms?
Metabolic acidosis, blindness, acute renal failure
CNS depression, hypertension, renal failure
Nausea, vomiting, tachycardia
Pulmonary fibrosis, edema, hemorrhage
What is the treatment for methanol poisoning?
Penicillamine
Ethanol and fomepizole
Deferoxamine
Activated charcoal
Which hydrocarbon is most commonly associated with aspiration pneumonia?
Chlorinated hydrocarbons
Kerosene
Lindane
Benzene
What type of necrosis is caused by acids with a pH below 3?
Coagulative necrosis
Saponification necrosis
Eschar necrosis
Liquefactive necrosis
Which heavy metal is associated with Minamata disease due to methylmercury exposure during pregnancy?
Mercury
Lead
Cadmium
Arsenic
What is the treatment for acute arsenic poisoning?
Ca disodium EDTA
DMSA
BAL
Penicillamine
Which heavy metal poisoning is characterized by microcytic anemia, encephalopathy, and gingival lead lines?
Lead
Copper
Cadmium
Mercury
What syndrome is associated with cadmium poisoning and involves gait disturbances and bone demineralization?
Minamata syndrome
Acrodynia
Itai-itai syndrome
Fanconi syndrome
Which treatment is used for iron poisoning?
Deferoxamine
BAL
Penicillamine
Ca disodium EDTA
Kayser-Fleischer rings are a hallmark of which heavy metal-related disease?
Wilson's disease (Copper toxicity)
Cadmium toxicity
Lead poisoning
Mercury poisoning
What is the mechanism of action for organophosphate pesticides like malathion?
Alteration of Na+/K+ influx across membranes
Reversible inhibition of acetylcholinesterase
Irreversible inhibition of acetylcholinesterase
Inhibition of superoxide dismutase
Which manifestation is NOT part of the DUMBELS mnemonic for organophosphate poisoning?
Tachycardia
Diarrhea
Miosis
Salivation
Which pesticide class alters Na+/K+ influx across cell membranes and causes neurotoxicity?
Carbamates
Organophosphates
Pyrethroids
Chlorinated hydrocarbons
What is the primary treatment for rodenticide poisoning caused by coumarin derivatives?
Atropine
Vitamin K
Activated charcoal
Pralidoxime
Paraquat poisoning primarily affects which organ?
Liver
Kidneys
Heart
Lungs
Which herbicide is associated with pancreatitis and CNS effects?
Diquat
Paraquat
Lindane
Chlordane
What is the hallmark symptom of salicylate toxicity?
Tachypnea
Jaundice
Hypotension
Miosis
Which antidote is used for cyanide poisoning by directly binding to cyanide?
Hydroxycobalamin
Sodium Thiosulfate
Amyl Nitrate
Sodium Nitrate
What is the toxic metabolite formed during acetaminophen metabolism?
Sulfate
NAPQI
Glutathione
Acetylcysteine
Which triad is associated with opioid toxicity?
Seizures, metabolic acidosis, coma
Hyperventilation, tinnitus, seizures
Coma, respiratory depression, miosis
Jaundice, hypocalcemia, cardiac arrhythmia
What is the mechanism of action (MOA) of benzodiazepines?
Inhibit cytochrome c oxidase
Enhance excitatory impulses through GABA
Inhibit lactase dehydrogenase in the Cori cycle
Bind to GABA receptors to enhance inhibitory impulses in the CNS
Which treatment is used to enhance elimination in salicylate toxicity?
Hydroxycobalamin
Pyridoxine
Flumazenil
Sodium bicarbonate
What is the primary antidote for isoniazid toxicity?
N-acetylcysteine
Sodium Thiosulfate
Diazepam
Pyridoxine
Which phase of acetaminophen toxicity is characterized by increased liver enzymes?
Phase III (72-96 hrs post-ingestion)
Phase IV (4 days to 2 weeks)
Phase II (24-72 hrs post-ingestion)
Phase I (30 min - 24 hrs)
What is the triad of symptoms associated with isoniazid toxicity?
Hyperventilation, respiratory alkalosis, tinnitus
Jaundice, hypocalcemia, cardiac arrhythmia
Coma, respiratory depression, miosis
Seizures, metabolic acidosis, coma
Which opioid receptor subtype is associated with euphoria and respiratory depression?
Kappa (OP2)
Mu (OP3)
Sigma
Delta (OP1)
What is the primary treatment for benzodiazepine overdose?
Sodium Thiosulfate
Pyridoxine
Flumazenil
Naloxone
Which substance is used for gastric decontamination in acetaminophen toxicity?
Activated charcoal
Hydroxycobalamin
Diazepam
Sodium bicarbonate
What is the mechanism of action of barbiturates?
Stimulate respiratory centers in the brain
Enhance inhibitory impulses through GABA and inhibit excitatory impulses
Inhibit cytochrome c oxidase
Bind to opioid receptors in the CNS
Which symptom is NOT part of the triad for salicylate toxicity?
Tinnitus
Hyperventilation
Miosis
Respiratory alkalosis
What is the primary goal in treating opioid toxicity?
Enhance elimination through hemodialysis
Administer activated charcoal
Correct metabolic acidosis
Reinstitution of adequate spontaneous ventilation
Which antidote is used for sulfur detoxification in cyanide poisoning?
Sodium Bicarbonate
Amyl Nitrate
Sodium Thiosulfate
Hydroxycobalamin
What is the primary mechanism of toxicity for cyanide?
Inhibition of cytochrome c oxidase
Inhibition of lactase dehydrogenase
Formation of toxic metabolites
Binding to GABA receptors
Which symptom is commonly associated with barbiturate overdose?
Hyperventilation
Jaundice
Miosis
Slurred speech
What is the role of N-acetylcysteine in acetaminophen toxicity?
Stimulate respiratory centers in the brain
Bind to opioid receptors to reverse toxicity
Substitute for glutathione and reduce NAPQI to non-toxic APAP
Enhance elimination through hemodialysis
What is a potential adverse effect of chloramphenicol in neonates?
Fine Hand Tremors
Red Man Syndrome
Malignant Hyperthermia
Gray Baby Syndrome
Which of the following is a treatment for chloramphenicol-induced toxicity?
Calcium chloride IV
Gastric lavage
Glucagon
Charcoal hemoperfusion
What is the primary adverse reaction associated with vancomycin?
Hyperkalemia
Aplastic anemia
Malignant hyperthermia
Red Man Syndrome
Vancomycin is the drug of choice for which condition?
Malignant hyperthermia
Clindamycin-induced pseudomembranous colitis
Anaphylaxis
Bipolar disorder
What combination increases the toxicity of digoxin?
Digoxin + quinidine
Digoxin + neostigmine
Digoxin + succinylcholine
Digoxin + vancomycin
Which electrolyte imbalance predisposes a patient to digoxin toxicity?
Hypermagnesemia
Hyperkalemia
Hypokalemia
Hyponatremia
What is the antidote for digoxin toxicity?
Glucagon
Activated charcoal
Calcium chloride
Fab fragments (Digibind)
Which muscle relaxant is associated with malignant hyperthermia?
Vancomycin
Pancuronium bromide
Lithium
Digoxin
What is the treatment for succinylcholine-induced muscle weakness?
Neostigmine
Calcium chloride
Epinephrine
Glucagon
Which of the following is a source of methylxanthines?
Bananas
Spinach
Cola nuts
Grapefruit
What is a potential adverse effect of methylxanthines?
Peripheral weakness
Bronchospasm
Pulmonary edema
Seizures leading to coma
How do glucose and insulin help in hyperkalemia management?
They shift potassium intracellularly.
They increase potassium excretion.
They block potassium absorption.
They antagonize cardiac effects.
Which antidote is used to treat paracetamol poisoning?
Acetylcysteine
Sodium nitrite
Flumazenil
Pralidoxime
What is the primary antidote for cyanide poisoning?
Pyridoxine
Cyanide kit (Amyl nitrite, Sodium nitrite, Sodium thiosulfate)
Benzylpenicillin
Glucagon
Which substance is treated with benzylpenicillin as an antidote?
Amanita poisoning
Cyanide poisoning
Ricin poisoning
Lead poisoning
What is the antidote for lead poisoning?
Deferoxamine
Prussian blue
Ca disodium EDTA
Dimercaprol
Which antidote is used for iron and aluminum poisoning?
Pyridoxine
Protamine sulfate
Penicillamine
Deferoxamine
Dimercaprol is an antidote for poisoning caused by which substances?
Thallium
Arsenic, gold, copper, inorganic mercury, lead
Carbon monoxide and hydrogen sulfide
Ethylene glycol and methanol
What is the antidote for ethylene glycol or methanol poisoning?
Atropine
Sodium thiosulfate
Flumazenil
Ethanol
Which antidote is used to reverse benzodiazepine overdose?
Flumazenil
Acetylcysteine
Glucagon
Naloxone
What is the antidote for beta blocker overdose?
Protamine sulfate
Glucagon
Atropine
Penicillamine
Naloxone is used as an antidote for which type of poisoning?
Opiates
Lead
Cyanide
Organophosphate
Which antidote is used for carbon monoxide poisoning?
Oxygen
Sodium nitrite
Prussian blue
Ethanol
Penicillamine is an antidote for poisoning caused by which substances?
Amanita
Copper, gold, lead, mercury, zinc
Cyanide
Thallium
What is the antidote for coumarin poisoning?
Phytomenadione (Vitamin K)
Protamine sulfate
Dimercaprol
Atropine
Which antidote is used for organophosphate poisoning?
Atropine and Pralidoxime
Sodium thiosulfate
Pyridoxine
Flumazenil
Protamine sulfate is an antidote for which substance?
Ethylene glycol
Cyanide
Heparin
Ricin
What is the antidote for thallium poisoning?
Ethanol
Prussian blue
Dimercaprol
Deferoxamine
Pyridoxine is used as an antidote for poisoning caused by which substance?
Ricin
Amanita
Isoniazid
Carbon monoxide
Which plant toxin is associated with deadly nightshade?
Uroshiol
Phalloidine
Ricin
Atropine
Which of the following substances is known as "Shabu" or "Ice"?
MDMA
Methamphetamine
Cocaine
Ketamine
What is the primary active ingredient in marijuana?
Lysergic Acid Diethylamide (LSD)
Î9-tetrahydrocannabinol (THC)
Ketamine
Phencyclidine (PCP)
Which of the following is a common treatment for delusions caused by marijuana use?
Clonidine
Atropine
Haloperidol
Diazepam
What is the mechanism of action (MOA) of ketamine?
Binds to cannabinoid receptors in the brain
Potent 5-HT1A agonist
Noncompetitive antagonist of NMDA receptors
Inhibits reuptake of NE, DA, and 5-HT
Which of the following symptoms is associated with phencyclidine (PCP) use?
Hypersensitivity to sound
Synesthesia
Tremendous strength
Altered time perception
What is the recommended treatment for severe hypertension caused by phencyclidine (PCP)?
Clonidine
Diazepam
Nitroprusside
Dantrolene
Which of the following is a symptom of LSD use?
Pruritis
Violent behavior
Respiratory distress
Depersonalization
What is the mechanism of action of cocaine?
Directly binds to adrenergic receptors and indirectly stimulates catecholamine release
Noncompetitive antagonist of NMDA receptors
Binds to cannabinoid receptors
Potent 5-HT1A agonist
Which of the following is a treatment for seizures caused by cocaine use?
Beta-blockers
Dantrolene
Diazepam
Haloperidol
What is the primary effect of Î9-tetrahydrocannabinol (THC) on the brain?
Acts as a potent 5-HT1A agonist
Binds to cannabinoid receptors
Inhibits reuptake of NE, DA, and 5-HT
Inhibits catecholamine reuptake
Which of the following is a symptom of ketamine use?
Seeing God
Synesthesia
Flashbacks
Altered visual perception
What is the treatment for hypersalivation caused by ketamine?
Diazepam
Diphenhydramine
Atropine
Clonidine
Which marine animal's venom contains conotoxins rich in disulfide bonds?
Cone Snails
Jellyfish
Stingray
Stonefish
What is the primary symptom of a stingray sting?
Lymphangitis
Direct muscular toxicity
Pruritis
Severe burning sensation
Which of the following is a symptom of a jellyfish sting?
Tremendous strength
Hallucinations
Erythematous/violaceous lesions
Euphoria
What is the mechanism of action of LSD?
Binds to cannabinoid receptors
Potent 5-HT1A agonist
Noncompetitive antagonist of NMDA receptors
Inhibits reuptake of NE, DA, and 5-HT
Which of the following is a treatment for panic attacks caused by ketamine?
Diphenhydramine
Diazepam
Clonidine
Haloperidol
What is the primary treatment for severe envenomation caused by snake bites?
MDAC
Respiratory support
Diazepam
Nitroprusside
Which toxin is responsible for Paralytic Shellfish Poisoning (PSP)?
Saxitoxin
Brevetoxins
Domoic acid
Ciguatoxin
What is the primary mechanism of action of Tetrodotoxin?
Blocks sodium channels
Causes tonic-clonic muscle contractions
Keeps sodium channels open
Increases intracellular calcium
Which organism is the primary source of Ciguatera poisoning?
Dinoflagellates
Amanita phalloides
Gambierdiscus toxicus
Clitocybe mushrooms
What is the hallmark symptom of Neurotoxic Shellfish Poisoning?
Locked-in syndrome
Hallucinations
Amnesia
Gastroenteritis
Which toxin is associated with hot-cold sensory reversal?
Ciguatoxin
Domoic acid
Tetrodotoxin
Saxitoxin
What is the recommended home remedy for Paralytic Shellfish Poisoning?
Pyridoxine
Baking soda in water
Atropine
Diazepam
Which toxin is heat-stable and found in inadequately preserved fish?
Tetrodotoxin
Scrombotoxin
Saxitoxin
Maitotoxin
What is the antidote for seizures caused by Ciguatera poisoning?
Mannitol
Vitamin K
Diazepam
Atropine
Which toxin is responsible for Amnesic Shellfish Poisoning?
Domoic acid
Brevetoxins
Saxitoxin
Okadaic acid
What is the primary treatment for Cyclopeptide poisoning from Amanita phalloides?
Atropine
Pyridoxine
Benzodiazepines
High-dose Penicillin G
Which mushroom toxin causes hallucinations?
Gyromitrin
Coprine
Psilocybin
Muscarine
What is the main toxin found in Cassava that can cause poisoning?
Linamarin
Ricin
Scopolamine
Saxitoxin
What is the primary treatment for Jimsonweed poisoning?
Sodium thiosulfate
Atropine
Mannitol
Physostigmine
Which poison is associated with a "bitter almond" odor on the breath?
Cyanide
Methanol
Arsenic
Isopropanol
What is the most likely cause of convulsions in a patient withdrawing from narcotics?
Cerebral hypoxia
Withdrawal reactions
Decreased seizure threshold
Direct convulsant effect of the poison
Which of the following poisons is associated with bullae (blisters) as a skin change?
Barbiturates
Paracetamol
Amphetamines
Organophosphates
What is the antidote for INH (isoniazid) poisoning?
Flumazenil
Pyridoxine
Naloxone
Diazepam
Which toxidrome is characterized by symptoms such as diarrhea, urination, miosis, and bradycardia?
Opiate/narcotic toxidrome
Cholinergic toxidrome
Anticholinergic toxidrome
Sympathomimetic toxidrome
Which of the following poisons is commonly associated with hyperthermia?
Opioids
Barbiturates
Amphetamines
Sedative-hypnotics
What is the recommended dose of naloxone for an adult in the treatment of opioid toxicity?
2 mg IV every 3-5 minutes
5 mg IV every 3-5 minutes
10 mg IV every 3-5 minutes
0.3 mg/kg IV every 3-5 minutes
Which of the following is a common cause of metabolic acidosis in poisoning?
Phenothiazines
Isoniazid
Chloral hydrate
Antihistamines
What is the primary goal of supportive therapy in the management of poisoning?
To eliminate the poison
To maintain vital functions
To induce vomiting
To administer antidotes
Which of the following poisons is associated with jaundice as a skin change?
Organophosphates
Cyanide
Amphetamines
Paracetamol
What is the most likely cause of seizures, coma, and metabolic acidosis in a poisoned patient?
INH (isoniazid) poisoning
Organophosphate poisoning
Salicylate poisoning
Opioid overdose
Which of the following is a key piece of information to elicit during history taking in a poisoning case?
Pupil size
Patient's blood pressure
Time of exposure
Skin color
Which of the following is a symptom of organophosphate poisoning?
Miosis
Hyperthermia
Tachycardia
Mydriasis
What is the primary mechanism of action for naloxone in opioid poisoning?
Enhancing the excretion of opioids
Chelation of heavy metals
Blocking opioid receptors in the CNS
Neutralizing opioid metabolites
Which of the following is NOT a condition that predisposes to metabolic acidosis or elevated anion gap?
Lactic acidosis
Methanol poisoning
Hyperventilation
Diabetic ketoacidosis
What is the purpose of sodium bicarbonate in alkalinization therapy?
To neutralize heavy metals
To enhance the elimination of certain poisons
To block receptor sites
To acidify the blood
Which antidote is used for cyanide poisoning to produce a less toxic compound?
Atropine
Sodium thiosulfate
Ethanol
Naloxone
What is the role of activated charcoal in poisoning management?
Neutralizing heavy metals
Blocking receptor sites
Enhancing metabolism of toxins
Limiting gastrointestinal absorption of poisons
Which chelating agent is specifically used for lead poisoning?
EDTA
DMPS
DMSA
All of the above
What is the primary action of atropine in organophosphate poisoning?
Neutralizing acetylcholine
Enhancing toxin excretion
Blocking muscarinic receptors
Chelation of heavy metals
Which of the following is a symptom of sympathomimetic toxicity?
Bradycardia
Hypotension
Hypoventilation
Mydriasis
What is the mechanism of ethanol in methanol or ethylene glycol poisoning?
Blocking receptor sites
Competitive inhibition of enzyme metabolism
Chelation of toxic metabolites
Neutralization of toxic compounds
Which antidote is used for INH (isoniazid) poisoning?
Naloxone
Sodium thiosulfate
Atropine
Pyridoxine (Vitamin B6)
What is the primary purpose of chelating agents in heavy metal poisoning?
Blocking receptor sites
Forming stable complexes for excretion
Neutralizing toxic metabolites
Enhancing toxin metabolism
Which of the following is NOT a method of external decontamination?
Gastric lavage
Activated charcoal
Dialysis
Emesis
What is the role of Digibind in digitalis poisoning?
Blocking receptor sites
Neutralizing toxic metabolites
Binding digoxin to limit cardiotoxic effects
Enhancing toxin excretion
Which of the following is a symptom of opiate/narcotic toxicity?
Hyperthermia
Mydriasis
Hypoventilation
Tachycardia
What is the purpose of frequent blood and urine pH determination in poisoning management?
To prevent aspiration
To guide acidification or alkalinization therapy
To monitor chelation therapy
To enhance toxin metabolism
Which of the following is a symptom of diabetic ketoacidosis?
Hypoventilation
Elevated anion gap
Hyperthermia
Bradycardia
What is the mechanism of action of cobra antivenom?
Blocking receptor sites
Enhancing venom excretion
Chelation of venom toxins
Binding venom to neutralize its effects
What is the primary purpose of intravenous fluids in medical care?
To monitor blood pressure
To treat psychological conditions
To prevent infections
To replace and maintain fluid balance
Why is frequent blood and urine pH determination important in medical treatment?
To guide acidification and alkalinization therapy
To assess kidney function only
To monitor hydration levels
To diagnose infections
What is a key strategy to prevent aspiration in patients?
Providing oxygen therapy
Administering antibiotics
Ensuring proper positioning during feeding
Increasing fluid intake
What is the primary goal of preventing decubitus ulcers in patients?
To improve blood circulation
To enhance muscle strength
To prevent pressure sores from prolonged immobility
To reduce the risk of infections
Which of the following is a critical aspect of treating electrolyte imbalances?
Administering painkillers
Monitoring vital signs
Providing psychological counseling
Increasing physical activity
What does "monitoring of input and output" refer to in medical care?
Recording medication dosages
Measuring fluid intake and urine output
Tracking food intake and exercise
Observing patient behavior
How long is observation in the emergency room typically warranted for certain patients?
48 hours
6 hours
At least 24 hours
12 hours
Why is frequent re-evaluation important in patient care?
To monitor changes in the patientâs condition
To reduce hospital costs
To avoid unnecessary treatments
To ensure the patient is comfortable
What type of evaluation is critical for suicidal or substance-abusing patients?
Cardiovascular evaluation
Neurological evaluation
Nutritional evaluation
Psychiatric evaluation
In cases of childhood poisoning, what additional concern should be evaluated?
The familyâs financial status
The childâs diet
The childâs school performance
Possible child abuse or neglect
What is a recommended intervention for families dealing with poisoning incidents?
Relocation to a safer environment
Immediate hospitalization of all family members
Family counseling and education
Legal action
What is a key consideration in cases of physical or sexual abuse among women?
Encouraging the victim to remain silent
Providing financial assistance
Offering medical and psychological support
Ensuring access to legal representation
What is a common factor to assess in cases of domestic violence?
The victimâs financial independence
The perpetratorâs employment status
The safety and well-being of the victim
The victimâs educational background
What is the primary focus of acidification and alkalinization therapy?
Enhancing kidney function
Regulating the bodyâs pH levels
Increasing oxygen levels in the blood
Balancing blood sugar levels
What is a critical step in the prevention of decubitus ulcers?
Administering antibiotics
Increasing caloric intake
Providing physical therapy
Regularly repositioning the patient
Why is monitoring vital signs essential in medical care?
To reduce the need for medication
To detect early signs of deterioration
To improve patient morale
To ensure the patient is comfortable
What is a key component of managing temperature problems in patients?
Administering sedatives
Increasing physical activity
Providing high-calorie meals
Using cooling or warming blankets
What is the primary goal of family counseling in cases of poisoning or abuse?
To reduce medical costs
To encourage legal action
To assign blame
To educate and support the family
