General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison...
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![Page 1: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/1.jpg)
General Approach to the Poisoned Patient
Bruce D. Anderson, PharmD, DABAT
Director, Maryland Poison Center
Assistant Professor, University of Maryland
School of Pharmacy
![Page 2: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/2.jpg)
The Maryland Poison Center
![Page 3: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/3.jpg)
GOAL
•Students will be able to describe the evaluation and the most appropriate initial therapy for poisoning and overdose patients.
![Page 4: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/4.jpg)
OBJECTIVES•Describe the usual population of poisoning victims
•Describe the roles of a poison center•Describe the nine main questions to ask when evaluating a poisoning patient
•Describe the general steps involved in the initial management of poisoning victims
![Page 5: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/5.jpg)
Quiz!
•You are contacted about a normally healthy 18 month old who just ingested the packet of silica gel that was in the new shoe box.
•What would you recommend: management in the ED or at home?
![Page 6: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/6.jpg)
Quiz!
• The mother of a 3 year old calls you about the child ingesting a small amount of Visine® eye drops. The exposure just happened and the child is fine. The bottle only contains 10 ml’s. How would you manage this case?
• What would you recommend: management in the ED or at home?
![Page 7: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/7.jpg)
Quiz!A normally healthy 15 year old is helping his father build a deck. The child reaches into a wood pile and feels a sting on his hand. He looks down in time to see this spider crawling away.
What would you recommend?
![Page 8: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/8.jpg)
Maryland Poison Center•Certified Regional Poison Center•24 hour service•410-706-7701 1-800-222-1222•Certified “SPI’s”•Poison prevention education•Professional education
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MPC: Overview
•Service program of the University of Maryland School of Pharmacy
•Located here since 1972•First year of operations, received 5,600 calls
•In 2012, MPC received 62,229 calls
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MPC: (continued)
•Open 24 hours/day•Staffed by pharmacists & nurses•Nationally certified Specialists in Poison Information
•Board certified Medical Director•Board certified Director•Additional consultants available
![Page 11: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/11.jpg)
Other Functions
•Recognition and prevention of exposures through community education and outreach
•Professional education to optimize patient care
•Data collection/reporting nationally•Research to optimize patient care *
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What’s the Mission?
•The mission of the Maryland Poison Center is to decrease the cost and complexity of poisoning and overdose care while maintaining and/or improving patient outcomes.
![Page 13: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/13.jpg)
Bottom Line
•Save Lives•Save Dollars
![Page 14: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/14.jpg)
Bottom Line (continued)
•Save lives by providing emergency triage and treatment information to all callers.
•Save dollars by managing vast majority of patients (66%) safely and inexpensively at home.
![Page 15: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/15.jpg)
Fiscal Impact:
•Last year, 22,883 poisoning patients were safely managed at home.
•Usual charge for ED evaluation and treatment: ~ $500 - $1,000 per patient
•Estimated cost savings:$11,441,500 to $22,883,000 per year
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Poisonings - Epidemiology
•Over 2.2 million human poisonings in 2012.
•Approximately 1.1 million exposures occurred in children < age 6 years.
![Page 17: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/17.jpg)
Poisonings - Epidemiology
•~50% occur in children <6 years old.
•< 30 fatalities in children < 6 years old in 2012.
![Page 18: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/18.jpg)
Why Pediatrics?
•Stages of child development• Imitate adult behavior;•Product may not be used or stored properly;
•Changes in the child’s environment (vacation, moving, going to a relatives house, etc).
•Siblings
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Siblings
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Common Substances
•Cosmetics and personal care products•Cleaning products•Drugs (analgesics, cough and cold medicines, topicals, antibiotics, etc.)
•Plants•Hydrocarbons•Pesticides
![Page 21: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/21.jpg)
Why Pediatric Poisonings Occur
• Susceptibility of young children• stages of development• imitate adult behavior
• Potentially dangerous circumstances• lack of supervision• child is hungry/thirsty• product is in use/not stored properly• “look-alikes”
![Page 22: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/22.jpg)
Can You Tell???
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Can You Tell???
![Page 24: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/24.jpg)
• Substance• Amount• Route(s)• Time of or since exposure
• Age/weight
• Symptoms present• Previous treatment provided
• REASON for the exposure
• Pre-existing medical conditions
Initial Assessment
![Page 25: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/25.jpg)
• If possible, identify physical findings:•What does the patient LOOK like?
Assess the WHOLE Patient!
![Page 26: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/26.jpg)
•Name the toxin that produces a smell of almonds.
Quiz!
![Page 27: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/27.jpg)
•Cyanide!!!
Answer
![Page 28: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/28.jpg)
• Any changes in urine, feces, fingernails, hair, etc?
• Assess vital signs: any changes in heart rate, blood pressure, temperature, respiratory rate?
• Changes in pupil size (e.g., miosis vs. midriasis)?
• Unusual eye movements?• New neurologic findings (hypertonia vs. hypotonia; posturing, seizures, tremor, etc.)?
Assess the WHOLE Patient!
![Page 29: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/29.jpg)
Name the toxin that can cause the tongue to turn black?
Quiz!
![Page 30: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/30.jpg)
Bismuth
Answer
![Page 31: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/31.jpg)
• Every patient has a story. • The job of the clinician is to listen to that story, assess the quality of the information, relate all of the information to the physical findings and other objective information that’s available about your patient, and make reasonable assessments based on all of the information.
Assess the STORY
![Page 32: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/32.jpg)
Do you believe the story?
![Page 33: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/33.jpg)
•Assume that the story is INCORRECT and/or INCOMPLETE until you have objective information to support the story.
Assess the STORY
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• Constellations of symptoms associated with specific toxins or groups of toxins.
• E.g., opioid toxidrome: • CNS depression• Respiratory depression• Miosis• Bradycardia
Toxidromes
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Initial Assessment
•Substance•Amount•Route(s)•Time of or since exposure
•Age/weight
•Symptoms present•Previous treatment provided
•REASON for the exposure
•Pre-existing medical conditions
![Page 36: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/36.jpg)
Consider Poisoning for:
•any abrupt, unexplained change in mental status;
•victims of fire or trauma•patients with previous psychiatric history
•patients that present with multiple symptoms
![Page 37: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/37.jpg)
General Management
ABC’s•The vast majority of poisoning exposures can be managed supportively.
![Page 38: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/38.jpg)
Supportive therapy (continued)
•Altered mental status:•Give naloxone 0.4 - 2.0 mg, glucose, and thiamine
•Monitor and treat seizures, fluid and electrolyte abnormalities, hypo/hyper thermia
![Page 39: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/39.jpg)
•Eye exposures: flush!•Skin exposures: flush!• Inhalation exposures: Move to fresh air!• Injections: Mmmm…toughie• Ingestion of toxins: Consider methods to prevent absorption. Can safely dilute almost any exposure with water
General Decontamination
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Don’t become a victim!
![Page 41: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/41.jpg)
• More effective than ipecac or the combination of ipecac + charcoal.
• Contraindications: ileus, foreign bodies
• Dose: 1-2 grams/kg or 10 X the amount of the ingested substance.
• Adverse effects: aspiration pneumonia (common), gastric obstruction (RARE).
Activated Charcoal
![Page 42: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/42.jpg)
• Iron• Lithium• Sodium• Potassium• Lead• Hydrocarbons• Acids• Bases• Cyanide
Activated Charcoal: Doesn’t Bind
![Page 43: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/43.jpg)
• Is it acceptable to administer activated charcoal to someone who is unconscious and unresponsive?
•Yes! Need to protect airway first
Charcoal… Can You???
![Page 44: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/44.jpg)
•Is it acceptable to administer activated charcoal to someone who is intubated and being ventilated?
•Yes!
Charcoal… Can You???
![Page 45: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/45.jpg)
What are the situations where you CAN’T safely give charcoal???
•Substance NOT bound by charcoal•GI Obstruction
Charcoal… When Can’t You..??
![Page 46: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/46.jpg)
•Saline cathartics (sorbitol, magnesium citrate) may be given along with charcoal to speed passage of the AC-drug complex through the GI tract.
•NOT NECESSARY•May lead to fluid and electrolyte abnormalities
Cathartics
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• Little or no advantage over the use of activated charcoal alone.
• Effectiveness is limited by the size of the tube.
• 30% return (adults)
Gastric Lavage
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• Use PEG-ELS to flush the GI tract.• Consider only for overdoses involving:
• Iron• Lithium• Sustained release preparations
•Contraindicated in patients with ileus
Whole Bowel Irrigation
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• Multiple Dose Activated Charcoal (MDAC)
• Consider for:• dapsone• phenobarbital• phenytoin• theophylline
• DO NOT USE MULTIPLE DOSES OF CATHARTICS!
Enhancement of Elimination
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• Alteration of URINE pH: acid or base• Acidification of urine no longer performed because of risk of rhabdomyolysis and renal failure
• Alkalinization: check systemic pH
Enhancement of Elimination (continued)
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•Does not work for substances with large volumes of distribution
Hemodialysis/Hemoperfusion
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•Advantages:• Corrects acid/base imbalances
• Corrects fluid and electrolyte imbalances
• Fairly common procedure
Hemodialysis
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• Advantages:• May clear some protein bound drugs
• Disadvantages:• Not a common procedure
• Who has the cartridge?
Hemoperfusion
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•HD:•phenobarbital•salicylates•alcohols• lithium
•HP•meprobamate•phenobarbital•salicylates *• theophylline
Hemodialysis/perfusion
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Opioids Naloxone, nalmafene
Acetaminophen Acetylcysteine
Tricyclic Antidepressants Sodium Bicarbonate
Calcium Channel Blockers Calcium, Glucagon, Insulin/glucose
Beta Blockers Glucagon
Iron Deferoxamine
Benzodiazepines Flumazenil *
Digoxin FAB fragments
Anticholinergics Physostigmine
Antidotes
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Cyanide Amyl Nitrite, Na Nitrite, sodium thiosulfate; or
Hydroxocobalamin
Carbon Monoxide Oxygen
Nitrates/nitrites Methylene blue
Carbamates,Organophosphates
Atropine, Pralidoxime (2-PAM)
Ethylene glycol, methanol Fomepizole or Ethanol
Snakes Antivenin (CroFab)
Metals BAL, EDTA, Succimer,d-penicillamine
Antidotes
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Name something WAY BAD!
•What do you think? Name a substance that you believe is SO toxic, only one dose can be FATAL.
![Page 58: General Approach to the Poisoned Patient Bruce D. Anderson, PharmD, DABAT Director, Maryland Poison Center Assistant Professor, University of Maryland.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649e7e5503460f94b80dd0/html5/thumbnails/58.jpg)
“One is Deadly”
• Camphor• Clonidine• Calcium channel
blockers• Methyl salicylate (oil of
wintergreen)• Topical imidazolines (like
Visine)• Benzocaine, lidocaine• Oral hypoglycemics
• Diphenoxylate and atropine (Lomotil)
• Olanzapine, clozapine• Hydrocarbons
(petroleum distillates)• Antifreeze (ethylene
glycol, methanol)• Caustics • Acrylic Nail Glue
Remover (acetonitrile)
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Questions?