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98 Cards in this Set

  • Front
  • Back

Top Prescribed Drug :




Age abused:

Hydrocodon/APAP = Vicodin




Oycodon/APAP= Percocet




Young- mid adult


25-40

AAPCC-TESS
AmericanAssociation of Poison Control Centers-Toxic Exposure Surveillance System



Children less than 6 compose 50% of cases

Elderly tend to have toxicities because of

Polypharmacy/confuse product and instruction

Toxicokinetics- how drugs get into our body and what happens when its in our body.




Toxicokinetics of TCAD and AChergics

Slow absorption due to slow GI motility

Toxidrome: Anticholinergic

  delirium hyperthermia     red as a beet, mad as a hatter,                                    dry as a bone , blind as a bat,                                  hot as a hare 
 ileus 
 mydriasis
tachycardi...
delirium

hyperthermia red as a beet, mad as a hatter, dry as a bone , blind as a bat, hot as a hare


ileus


mydriasis


tachycardia


urinaryretention


warmdry skin

Toxidrome: Cholinergic

Change in mental status 
Brady cardia 
Meiosis 
bronchorrhea 
diarrhea 
salivation 
lacrimation 
urnination 
gi cramps 

Change in mental status


Brady cardia


Meiosis


bronchorrhea


diarrhea


salivation


lacrimation


urnination


gi cramps

Ipecac


do we use?


HOw long does it work?


Contraindications




Gastric lavage:

ipecac is not used anymore


- Used within 1 hour of ingestion(Gastric Lavage also 1 hour) /works within 15-30 min


-DO NOT USE IN pts withOUT gag reflex, children under 6 months, pts who ingested sharp objects


-patients who will be unresponsive




SE for gastric lavage : Aspirational Pneumonia

Activated Charcoal

ADsorption prevents ABsorption


Given in first 1-2 hours




Reduces half life



Generallyineffectivefor iron, lead, lithium, simple alcohols, and corrosives

Beta blocker/ CCB antidote

Glucagon

Anticholinesterase

Atropine

Digoixin

Digibind

Dimercaperol/ Penicilinamine

Heavy metal poison

Calcium EDTA ; succimer

Lead

Biotransformation


Phase 1 vs phase 2

Phase one oxidized or demethylated by CYP 450




Phase 2 made more polar or water soluble by conjugation


-glucoronic acid via glucoronyl transferase


-glutathione via glutahione s - transferase


- sulfate - sulfotransferase

CYP 450 major enzyme responsible for drug metabolism and production of potentially toxic metabolism


T/F

tru

METABOLISISM




Phase 1 does drug toxification


Phase 2 does drug ______

Detoxification via phase 2


GSH transferases and glucoronidases




If not detoxified by phase 2 it will cause hepatic injury

Liver resistant yet vulnerable how ? How do toxins effect the liver?

-covalent binding to proteins and reactive toxic metabolite


-Creation of oxidative stress


-Stimulation of an immune attack

Acetaminophen toxicity epidemiology

second most common cause of liver transplant in US

CYP2E1 makes NAPQI from APAP metabolism . Its toxic but normally doesnt hang out very long because ?

active metabolite NAPQI takes 0= and covalently binds to hepatocytes. It is usually conjugated to water soluble metabolites and excreted. Three things happen thats stops that.

What three things occur that stop APAp from becoming excreted and more toxic

1. too much APAP, exceeds capacity to go through phase 2 transformation which is preferred


2.Induction of phase 1 cyp2E1 by alcohol. Alcohol inducts 2E1 and makes it metabolize more and more APAP leaving us with more dangerous NAPQI


3. Your malnourished. Dont have enough glutothione which is rich in cytosine,




4 g ceiling amount of apap. Cimetidine is also used its a 2e1 blocker.

Toxic dose of APAP children and adults

Children: 140mg/kg


Adult: 4g normal strength. XR is 3g




10g can deplete glutothionie storage in one day



APAP toxicity timeline

first 24 hours - "honeymoon phase" NVD but feel o.k


day 2 : start to have liver failure --> you will see lab changes in liver enzymes, they will rise rise and then drop




day 3: look at ALbumin(made by liver) and bilirubin (conjugated in liver)Pt will be jaundice and inr will be crazy because liver cant make conjugation factors.




Ammonia levels will be raised and will cross BBB this causes enephalopathy or HEPATIC COMA coma caused by liver failure or mess up . body will go into multiple system failure

Nomogram tells us serum of APAP useful in


what kind of patients




APAP toxidrome

self harm patients . if apap level is 300 example we will treat them 

self harm patients . if apap level is 300 example we will treat them



Antidote - N-acetylcysteine- how does it work




how do we dose

serves as a sulfhydryl group subsituting in for glutothione . It conjugates then excretes in urine.




Dose 1: DIRNK 140mg/kg mixed in soda or juice




THEN WE DO HALF




Dose2: then DRINK 70mg/kg q4h X 17 doses




can use nacetyl off lable as IV with micropore filtration 300mg/kg




NOW FDA approved: aCEtadote brand IV


LD: 150mg/kg over 15 min


MD: 50 mg/kg over 4 hours then count infusion of 100 mg/kg over 16 hours




USE Acetadote for more serious cases of APAP OD

Vicodin (hydrocodon + APAP) is now a schedule




FDA wants to unbundle APAP combos in drugs Darvacet was removed and replaced with?




Infant tylenol became 1 standard concentration.

2 before was 3




tramadol

FDA wants to recommend :

DC COMBO apap drugs with more than 325 mg

ASA or ASPRIN used to be #1 form of toxicity because of direct GI irritation , stimulation of cns respirartory centers. patients used to get

respiratory alkalosis tehn metabolic acidosis




methylsalicylate is topical ASA (aspercreme) also called oil of winter green

Respirartory acidosis -->Metabolic acidosis --> interfares with coagulation factors. What are the Blood gas levels that lead to each?

Respiratory alkalosis first (pCO2 < 35 mmHg,



Metabolic acidosis (HCO3< 18 mmol/L or B.E. < minus 4.0 mEq/L, pH < 7.35)




direct stimulation of CNS respiratory , increase depth of respiration, increase bicarbonate excretion




Direct irritation of GI

How dos asa affect cns respiratory centers in brain?

It uncouples mitochondrial oxidative phosphorylation




as toxicity progresses you have uncoupling so you are unable to generate ATP. Body goes into anaerobic state and cells begin to die. increase in glucose utilization.




body use so much glucose that it has to tap into fat stores and then we have an accumulation of KETO acids. and we trip into metabolic keto acidoisis.




METABOLISISM IS INCREASED! o2 consumption , glucose utilization and co2 and heat production




CNS deteriorates because no atp is around so we have a build up of lactic and pyruvic acid

Explain increase demand for Glucose in ASA toxicity




inhibit key enzymes with kreb cycle




volume depletion- water electrolyte disturbance




inhibit hepatic synthesis of clotting factors






look out for tinnitus with ASA toxicity t/f?








1. form keto acids /cns deterioration


2. inhibit key enzymes with krebs cycle . increase levels of pyruvate and lactate


3. insensbible water loss / vomit / electrolyte disturbance




Inhibit hepatic synthesis of clotting factors as well as ASA blocking of platlet aggregation

Toxidrome

Hyper ventilate 
Hyper thermia 
--
mental: agitation/CONFUSI?ON/lethargy/coma
--
Symptoms: tinnitus/NV
---
PExam: diaphoresis/tender abdomen 
--
Lab 
anion gap 
metabolic acidosis  
respiratory alkalosis
abnormal coagulation studies  

Hyper ventilate


Hyper thermia


--


mental: agitation/CONFUSI?ON/lethargy/coma


--


Symptoms: tinnitus/NV


---


PExam: diaphoresis/tender abdomen


--


Lab


anion gap


metabolic acidosis


respiratory alkalosis


abnormal coagulation studies

Treat with activated charcoal(sorbitol wont work for EC.) Gastric Lavage and whole bowel irrigation.




saliene Diuresis and urninary alklization.




monitor for sodium and fluid retention also pulmonary edema . this ocurs if you give it too fast (sodium bicarb)




Use D5W for the drip if pt is hypoglycemic. What about HD?

Hemodyalisis for patients


whos serum level is :




1. over 120 in acute situation




2. greater than 100 6 hours of ingestion






3. OR 60 or more in chronic toxicity

TCA toxicity kills you the fastest or slowest?




- Amytriptilline:?BRAND


-Nortripylene: ? BRAND




pamela/ pamelor

Fastest because it has a large volume of distribution and is VERY protein bound.


1. Elavil


2. Pamel-or

What leads to fatalities with TCA overdose?






TCA is associated with three combos of toxidromes, name them.


1. 2. 3.

QRS PROLoNGATION Cardiac arrhythmia :


Prolonged QRS complex with interventricular conduction delay which is called Branch block




Alpha adrenergic blockage:


Patient also has HyPOtension due to vascular alpha adrenergic receptors




ANticholinergic symptoms : red a a beet, blind as a bat (dialated pupils), mad as a hatter, dry as a bone, hot as a hare, Full as a flask (urinary RETENTION !!!)

TCAD toxidrome by symptom

-Heart beats fast(qrs prolongation) tachycardia,


-hypotension (adrenergic blockade)


-hyperthermia from heart beating fast


Mental status : mad as a HATTER(confuison lethargy dizziness and coma (anticholinergic).




PE


-mydraisis (dilated pupils blind as a bat)


-dry as a bone (dry membranes


Distended bladder (no bowel sounds)


-red as a beet




LAB : You will see a prolonged QRS with cardiac dysarrythmia

Cardiotoxicity : how does it happen with TCA

TCA: Inhibits fast sodium channel leading to slowing of phase 0 depolarizing


-which results in QRS/QTc


-arrhythmias (VT,VF,TdP)





Explain further toxicities

-cardiotoxicity (sinus tachycardia) is hard to differentiate from anticholinergic symptoms

-hypotension from impaired myocardial contractility and decreased PVR (alpha adrenergic blockade) & pulmonary edema


- since edema occurs you want to treat fluid overload

TCA levels that are toxic in the blood?




What amount is toxic to ingest ?




QRS complex is how many miliseconds

TCA toxic levels are over 1000




-Over 1 G is toxic to ingest




QRS is usually over 100 ms and indicator of toxicity

WHAT IS MAIN TREATMENT??



Aggressive treatment ABC


gastric lavage and charcoal




NO IPECAC


NO HD

Main treatment is SODIUM BICARB

Symptomatic treatment for TCAD




Arrythmia?


Hypotension?


seizures?




Phystostigmine? DO NOT USE leads to bradycardia and asystole (flat line)




last line





Arrhythmias: lidocaine is DOC for ventricular arrhythmias


Hypotension: fluids first THEN dopamine and pressors


Seizures: benzodiazepines



Children are usually victims to iron overdose because of

multivitamins

Mechanisms of toxicity , what happens?

GI irritant. Results in hemorrhage and bowel perforation.


-excess iron absorption


-Fluid and electrolyte imbalances


---


Acts as mitochondrial poison and hepatotoxicity


- metabolic acidosis occurs with iron due to mitochondrial upset


CV effects


SHOCK


---







Levels of toxicity of IRON :




How do you know dose is enough to send you over:


over 500 mcg/dl : are serum levels useful?





Progresses from


-stage 1 NVD, blood in stool,acidosis/shock


-Stage 2 - then seem fine but don't know if patient will present to stage 3




NVD-->ab pain-->blood in stool -->coma-->liver dysfunction




more than 60 mg = severe lethal toxicity




YES ! you can get in less than half an hour over 500 is a lethal serum level ! good unlike aspirin

Radio opicites indication for what toxicity

will show you you have iron toxicities

Treatment for Iron toxicity

Deforxamine( chelation therapy) is the preferred treatment




IV so psuedo allergy can occur

for iron & blood transfusions

Patient gets iron toxicity ffrom transfusions, butyou give EPOGEN not defuroxime.




Sickle cell disease and aplastic anmiea - gets blood transfusions.




not defuroxime

Cynide toxicity : occurs with what drug

cyanide toxicity occurs with : sodium nitro prusside

Cyanide toxicity causes:

cyanide blocks mitochondrial cytochrome oxidase.




prevents electron transport and oxygen utilization and oxidative metabolism

Person can get Cyanide toxicity because of

Hepatic impairment and renal impairment because thats where cyanide elimination and metabolism occurs







In renal impairment patient develops what ?


what chemical does it?




Also what else can thiocynate affect




whats a side effect?

Patient accumulates Thiocyanate




-this causes neurotoxic syndrome and can supress thyroid function




Why does this happen if they are on nitro prusside for so long? because they don't get a nitrate free interval




bitter almond breath. cyanide Side effects occur in the mouth. burning mouth , throat, agitation , syncope, N/V , HA, diaphoresis,dyspnea tachycardia,htn

Treatment of cyanide toxicity

Amyl nitrite, sodium nitrite, sodium thiosulfate and oxygen




step 1. Any Nitrite converts hemeglobin to MET hemglobin (hgb goes to met ball hehe) which is a better carrier of cyanide




Step 2. Thiosulfate reacts with cyanide and picks it up from met hemaglobin becomes thiocynate




Step 3. Oxygen to reverse binding of cyanide to cytochorme oxidase by


convert methemeaglobin to hemeglobin.






Hydroxycobalamine and its role in cyanide toxicity ?

hydroxycobalamine when given creates a non toxic cyanocoblamine.




It frees up oxygen from cytochrome oxidase in mitochondria so oxygen can work

CCB and beta blocker - antidote ?How does it work?

Glucagon works by promoting intracellular reentry of calcium from calcium channel blockers.




Thus, glucagon has chronotropic and iontropic effects by increasing camp.




It improves sypmtoms with ccb and BB blocker overdose.




glucagon+calcium gluconate

Beta blocker overdose

B1: increase in HR and contractility too much beta blockers cause DECREASED levels of cAMP.


-you have decreased myocardial contractility.


-decreased automaticity of pacemakers cells . ALSO CALLED DYSRYTHMIAS


B3 : controls temp so over dose can cause hypothermia.




b2: non-selctive blockade : impaired gluconeogenesis, decreased insulin release



Beta blockers that cause toxicity:




name the agents :

Lipophilic drugs cross bbb faster so cause toxicity. (seizure risk)


These agents inhibit sodium fast channels and widen the QRS which may potentiate other arythmias.




acebutolol: sectral


propanolol :inderal


betaxolol: nebivilal?




atenolol: tenormin




solotol an disa agents also prolong qt







cholinergic effects:

SLUG : THINGS LEAKING




drool,lacrimation, urinary incon, hyperactive bowel sounds(GI )

Beta Blocker Over dose will antagonize effects at heart leading to :

DECREASE DECREASE in whats important/ HR and BP




Brady cardia, Hypotension, mental status change, delirium, seizure, coma. sometimes broncospasam and hypocalcemia.




antagonisim at beta 1 --> need to increase camp--> increase calcium

how to treat BB overdose:

ABC, Fluids MAGNESIUM tdP,Glucagon Calcium gluconate to increase ionotropy because thats what you have to do




Insulin incase too much glucagon




stil give fluids before you give presssors

A lipid emulsion therapy can also be given. explain and what else is this used for?

Give for bb OD or TCA. Lipids act like a sink. They surround molecules that are lipophillic and pulls them out like a DRAIN. acts also as energy to improve myocardial function




lipid sinkm for TCA,bupivicaine, chlopromazine and beta blockers




Insulin improves myocyte metabolisim




convert % to ml




ie:10%= 10g/100ml


ie 20%= 20g/200ml


ie:30g= 30g/300ml

treatment again for BB

First line: glucagon




It actually activates cAMP in increases calcium entry,


- calcium salts -gluconate and chlorid, increases iontropy





Insulin and glucose is indicated as treatment options but when do you use it?

Ideally for those hemodynamicly unstable

Clinical triad of serotonin Syndrome

1. Mental status change


2. autonomic hyperactivity


3. neuromuscular abnormalities




Intensity of symptoms : some have mild some have sevre.




severe is


-delirium


-neuromuscular rigidity


-hyperthermia

Symptoms progress ----->

Akathisia(mild)-->tremors--->mental change -->clonus-->hyperthermia-->muscle hypertonicity /death




ATM(ental change) CHM(uscle hypertonicity)




clonus is when muscles are always twitching, you risk seizures and muscle cells break down . myoglobin gets lodged in kidney and you risk Rhabdomyolysis when it blocks kidneys.





look out for serotonergic properties with analgesics ie:

Tramadol (ULTRAM ) + Celexa(citalopram) + venlafaxine (effexor)




not a good combo

Mild cases of serotonin syndrome look like what?

ANti-cholinergics toxicity! Except for being hot. These patients are




-Afebrile meaning they have no FEVER! hot a hare on anticholinrgics


-Tachycardia


-shivering (becuase shivering heart rate is up because your moving)




-diphoresis( SWEAT)' (not in anti cholinergics, in Anti chol you are dry as a bone, no sweat.)




Mydriasis- dialted pupils (catecholamine release)


- tremors /clonus *new*

Moderate signs of SSyndrome

-mydraisis (catecholamine relase causes this)


-Hyperactive bowel sounds (TCA absent)


-diaphoresis (clamy(TCA and antich dry and hot)


- lower extremity (hyperflexia)




EYES


horizontal ocular clonus / nystagmus




Hypervilgilant (bird like reflexes )


peculiar head turnings





severe case of serotonin syndrome

SEVERE HYPERTENSION 

hyperthermia 

severe muscle rigidity 

rhabdomylysis 

renal failure

DIC (coagulation goes haywire) disorder with coagulation 

SEVERE HYPERTENSION




hyperthermia




severe muscle rigidity




rhabdomylysis




renal failure




DIC (coagulation goes haywire) disorder with coagulation



Serotonin is produced from

Decarboxylation and hydroxylation of L-tryptophan




if you have dysregulation of mech cotrollowing it and over production you can have serotonin syndrome. TrIPtans TRIP you into serontonin syndrome

How does it affect alll these symptoms ?

Usually serotonin affects wakefullness, affective behavior, food intake , theromoregulaton, migranes. emeisis , sexul behavior, motor tone, GI MOTILITY, pain




ieL anti emetics are antagonist not really agonist encouraging production of extta serrotonin, but what it does is that it antagonizes the receptor and stimulates production of serrotonin at other receptors

drugs that cause serotonin syndrome.

Anti depressants




Trazdone-desyrel


nefazodone-serzone


busprione - BUSPAR


venlafaxine-effexor


-clomipramine- anafril/clofranil




MAO-I


phenelzine- nardil


isocarboxazid- marplan


Moclobemide- auroix


clorgiline- clorgylene


Seleigiline (parkinsons)eldepry;


resegiline-azilect


Valproic acid: valproate




analgesics


Meperidine-Demerol


fentenyl- duragesic


tramadol- ultram


pentazocine- naloxone?


ondesteraon - zofran


metoclopramide - REGLAN (regulate gerd)


sumatriptan (imitrex





sibutramine is ?




other herbals that cause _____

sibutramine also called meridia. A drug herbal associated with serotoin syndrome. Its was originally an anorexic drug that supresses appetite. now a diet pill called asian bee pollen.




be careful with serotonin drugs and:


dextromethorphan


MDMA


LSD


st johns wort


ginseng


Tryptophan


linezolid - zyvox


ritonivr

These drugs INHIBIT metabolisim of serotonin

tranylcypromine (parnate)


phenelzine(narDIL)


Selegeline (eldepryl) like ELDER-pryl since its for parkinsons


linezolid(zyVox)

These drugs INCREASE serotonin release

Increase serrotonin release:




Amphetamines -stimulant


Mirtazipine


Anorectics


---buspirone & lithium stimulate post synaptic receptors


These have ssri like mechanisims be aware:


Tramadol ,TCA,venlafaxine



Neruromalignant hyperthermia symtoms ? What causes it?

caused by anesthetics deflourane, decamethonium .




side effects like rapid breathing which is asscoiated with VERY HIGH heart rate and VERY HIGH TEMPERATURE (clammy and sweaty with ssri)


RIGID muscles / rhabdo risk

Neurleptic malignant syndrome ?



muscle rigidity, fever, autonomic instability,[1]and cognitive changes such as delirium, and is associated with elevated plasma creatine phosphokinase.[2] Theincidence





with neurolepti and antipsych drugs

How do we treat serotonin syndrome?

Look for symptoms


-tremor/ hyperflexia


-spontanous clonus or inducible


-muscle rigidity


-temperature 38 degrees(not high)


-agitation/ diaphoresis



YOu REMOVE OFFENDING DRUG


administer 5hT2 antagonist L




Antidote :


CYproheptadine (Periactin) binds to serotonin receptors




olanzapine and chlorpromazine also has eveidance




DO NOT GIVE proplanolol, datrolene or bromocriptine for serotonin syndrome.




Be careful not to misdx as malignant hyperthermia or NM syndrome

Tell patient dont over dose with migraine and tramadol therpies

these are common drugs that cause serotonon syndrome !

Lead is a big problem alot of conditions are ___


LEad level of concern :




why children?


most common cause? paint chips

symptomatic and go untreated largely


- when lead levels reach 10 and over IQ damange occurs its when you should be concerned . levels more than 10 zdecreases syn of vit


- their stomachs absorb lead like water to wells and dry trenches ! 40%

calabash balls have high levels of

lead in it harms 1st trimester baby . Alarcon,alkohl,azarcpm, bali goli

How does lead get absorbed into the GI tract??

it get absorbed in GI tract and compete with calciumso diet plays a role

SO lead stays in the body for a short/long time?




Its redistributed to bone teeth and hair




lead primariy effects :


how?

long time after its absorbed it dist to soft tissues, espeically kidneys and liver!




it also hoes to teeth bone and hair. blue line in gums "lead line"




ALL lead cirulates through the body in a vehicle and that vehicle are ERYTHROCYTES !!! anemias associated with lead poison




-Blood/GI/Neuromuscular/RENAL




lead blocks enzyme : ferocheltase and protoprophyrin

Enzymes it affects?




GI effects how does lead affects that

Lead effects smooth muscle of GI tract which produces a vague abdoinal syndrome .




STomach pain is aan early sign of disease.




the more lead the more consipation and "lead colic"

whats pathenmenoic for lead toxicity?


what else is seen?




what about detrimental effect ?

Lead palsy which is seen in acute toxicty. Marked by wrist and foot drop.




also hyperkinetic aggresive behavior is seen/ ADHD is missdx lot




-Lead encephalopathy. had been seen with levels as low as 50 and over 100.




Early signs of lead encephalopthy : clumsiness, vertigo,headace, insomina...




LATE SIGNS OF lead induced encephalopathy EXcited / confused behavior/ delerium / tonic and cloni convulsions


worst outcome: COMA

Lead poison can be found out with Blood lead level test.




also you can do erythrocyte protophyrophin levels




abdominal x ray

since this enzyme is inhibited

what do you treat lead poison with ? MUST USE BOTH !!!


Who is contraindicated ?



Dimercaperol (BAL)




Contraindicated with ppl who have a peanut allergy G6PD- deficient




- USE: CaNaEDTA to chelate calcium. NEPHROTOXIC so monitor renal bun/creatnine




DO not use Na2EDTA



Un approved Treatment Heavy Lead ?


Allergies :

Penicillamine - for heavy metals copper and lead


Allergies: PCN be aware

ONLY FDA approved kid (mostly) antidote for lead




CAVEAT With children taking this

Succimer or CHET-met CHEMET




They must be in a lead free environment . if not they have to be in hospsital with it. Transient increase in LFT. If not will lead rebound despite treatment


recheck lead 7-21 day after treatment

MAINSTAY TREATMENT OF LEAD IS

to decrease blood lead levels

OXY eliete also called ______ causes

Oxy elitie is a dietary supplement with the active dangerous compound called AGELIN. Its calle dbael apple if in nature. concentrated AGELIN messes with liver




acute hepatitis is being inverstigated

amioderone has a long half life thats what

mimics cirrhosis




even though its called acute nothing short about it

chlolestatic rxns are:


sign of cholestatic:


WHat happens?

Blockage to bile flow due to drugs


-early jaundice associate with puritis/itchiness


Gal stones block bile and you get bilary sludge.





What drugs causes cholestatic disease ?




labs for cholestatic disease

Biliary sludge is caused by estrogens,cotrimoxazole,rifampin nafcillin,chlorpromazine, erythromycin




colic stool seen GREY




elevated transaminiase 2-8xs upper limit


Elevated alk phos 3x's limit normal:30-120


hyper bilirubnia (25) Normal:0-1

Veno occlusive disease


What causes it


what labs


what treats




prophylaxis ??

Cuased by taking a drug called Busulfan. veno occulsive WIPES out immune system. Its similar to cholestatic but MUCH MORE SEVERE and SERIOUS




YOu get a giant liver


+ Weigh gain ie: ascites (5% above)


bilirubin is high over 1 / alk phos is high over 120, AST over 35




Encephalopthy occurs from excess ammonia ! pt cant metabolize ammnnia




clots form .




TREAT WITH DRUG URSoDIOL or Actigall it dissolves billiary salts




decrease extra vascular problems




increase intravascular problems




give tpa for clots




prophylaxis: defobrotide

allergic hepatitis :

allergic rxn at the heaptic level.




fever/rash/lymphadenopathy/eosinophilia


results in hepatic necrosis and cholestasis




looks like on the outside like mono




Drug that causes this is famous phenytoin and co-trimoxazole




These drugs act like haptens and ellicit an immune response at the level of liver

idiosyncratic hepatoxic rxns

NON-dose related DOES NOT INvOLVE THE IMMUNE SYSTEM




may be genetic link with slow acetylators




INH causes it alot. increaases transaminase




when ast and alt is over 500 you gotta stop drug




-mixed forms of hepatic dysfunction




allopurinol,aspirin, sulfonamides, quinidine, HMG-co-reductase inhibitors,valproic acid , INH,




and troglitazone


trovafloxacin and quinilone

indolent cirrhosis

caused by high doses of methtrexate. Cirrhosis sneaks up on you over TIME! with like warning or signs. LIVER biopsy is the key for earlu dx. Usually do it after you have take over 2500 mg of methotrexate to check for indolent cirrhosis

kava kava and vitamin A are bad because they cause liver toxicity.

Mega doses of vitamin A (toxic level over 20,000) are bad bad


so is kava kava(sleep remedy) which is a mood altering agent

market withdrawl from being toxic to liver

Accutane - isotrentenoin


Beycol-cerivastatin


bextra-Valdecoxib (NSAID)


Cylert- pemoline




Pemoline -cyclert-adhd ALL removed due to livr toxicity