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Case Presentation. CC: Tylenol OverdoseHPI: 33 year old Indian Female found somnolent by friends ingested 7 ER Tylenol PM to help her sleep denied suicide attempt. Physical Exam. VS: BP 104/67; HR 111; RR 18; T 98; Sat 97%Gen: A
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1. Morbidity & Mortality Review Cindi Hurley
October 11, 2007
2. Case Presentation CC: Tylenol Overdose
HPI: 33 year old Indian Female
found somnolent by friends
ingested 7 ER Tylenol PM to help her sleep
denied suicide attempt
3. Physical Exam VS: BP 104/67; HR 111; RR 18; T 98; Sat 97%
Gen: A&Ox3, responds but somnolent
HEENT: EOMI, PERRLA, MM dry & pale
Neck: Supple, no LAD, no JVD
Chest: CTAB
CV: Reg Rhythm, Tachy, no m/r/g
4. Physical Exam, cont’d Abd: S/NT/ND, + BS, Hepatic Border 2 cm < costal margin, no TTP
MSK: Full ROM
Neuro: CN 2-12 Intact with no focal deficits
Psych: Depressed Mood with 5/8 SIGECAPS
5. Labs CBC: WBC 9.1, Hgb 11.8, Hct 36.1, Plt 18,000
Chem: Na 134, K 3.9, Cl 95, HCO3 8.8, BUN 8, Cr 1.3, Glc 296*, AG 34, Alb 3.5, Bili 1.1,
AST 201, ALT 207, APhos 84
ABG: pH 7.05, pCO2 20.8, pO2 135, BE –23
Coags: INR 1.25, PT 13, PTT 29
Tox: Acetaminophen 211, All others neg
6. Acetaminophen (APAP) Review Available as 325 or 500 mg, 650 mg ER
Tylenol PM = 500 mg APAP & 25 mg Diphenhydramine, take 2 tabs
Most widely used analgesic and anti-pyretic in US and world
Contained in > 100 products
7. APAP Review, cont’d Max: 1000 mg/dose or 4000 mg/24 hrs
Toxic dose at 7000 mg but lower in susceptible pts
Most common cause of Acute Liver Failure in US (replacing viral hepatitis)
2nd most common reason for liver transplantation
8. APAP Metabolism With nl dosing, 95% of APAP is conjugated with glucuronide and sulfate and excreted in urine
2.5% is excreted unchanged in urine
2.5% is metabolized into NAPQI – a highly toxic intermediate
NAPQI is rapidly conjugated with glutathione and excreted in urine
9. Treatment for Overdose Activated charcoal for pt that presents within 4 hrs of ingestion
Review Rumack-Matthews normogram to see if N-acetylcysteine (NAC, Mucomyst) is appropriate
NAC is a precursor of glutathione and combines with NAPQI
10. Complications of Overdose Coagulopathy (INR > 1.5)
Hypoglycemia
Renal Failure
Metabolic Acidosis
Hepatic Dysfunction ? Acute Liver Failure (ALF)
Encephalopathy, Cerebral Edema and ?ICP
11. Back to Our Patient See handout for lab results
Sat eve at 8:00 PM ? AMS, MELD = 27
Arranged transfer to Emory
Transplant team required pt to be intubated for transport
12. Recommendations If INR > 1.5, need mgmt in ICU with frequent neuro checks
For pts in a non-transplant center, early consultation with a transplant center
With APAP-related ALF, if arterial pH < 7.3 should send to transplant center
Sedatives are discouraged so that mental status can be accurately assessed
13. Recommendations, cont’d If stage 3/4 encephalopathy ? intubation
Sedation for intubation with propofol because it may reduce cerebral blood flow
In pt not bleeding & INR < 7, not necessary to give FFP
Not necessary to give plt unless < 10,000
14. Recommendations, cont’d If ALF, transfer early as transportation may be dangerous with stage 3-4 encephalopathy
If ALF & MELD > 10 ? candidate for liver transplant
15. Outcome 41 day stay at Emory but no liver transplant
Prolonged encephalopathy 2/2 liver failure
Right Cartotid Injury 2/2 Swan-Ganz catheter misplacement s/p repair
Vent associated PNA 2/2 Acinetobacter
Tracheostomy 2/2 prolonged vent wean
16. Outcome Cont’d Right Thigh Hematoma s/p evacuation
UTI
PEG tube for nutrition
D/C to LTAC on 9/26