Cumulative Final - Hepatology (Isaacs) Flashcards
What are true markers for liver function?
AST
ALT
Alk phos
Estimated incidence of DILI
The estimated incidence of DILI is 14-19 cases per 100,000 people
Mechanisms/classifications of different types of DILI?
Direct hepatotoxicity, idiosyncratic hepatotoxicity, and indirect hepatotoxicity
What medications are highest risk for causing DILI (See Table 3)?
Acetaminophen and anti-infectives (isoniazid, beta lactam antibiotics, fluoroquinolone antibiotics, macrolide antibiotics)
What is considered high doses of APAP?
> 8 grams acetaminophen
High doses of APAP can result in toxic levels of _____
NAPQI (can cause direct hepatotoxicity)
Tx for APAP DILI
Reverse toxic metabolite with NAC (if in grey part on graph) – binds NAPQI
Activated charcoal (if < 2H since ingestion)
What do we monitor for APAP DILI?
AST
ALT
S/Sx of OD
NAC SE
N/V, GI issues
** If pt cannot handle these, give IV NAC
What should be done if APAP DILI was intentional OD?
Psych evaluation is appropriate and monitor for s/sx of depression
What is cirrhosis?
Severe, chronic, irreversible fibrosis of the liver
1 causative factor of cirrhosis in the US
Chronic alcohol use
What is a unique symptom for someone with cirrhosis?
Jaundice
Other symptoms of cirrhosis
Weight loss
Ascites
Jaundice
-megaly
Encephalopathy (confusion)
How is cirrhosis diagnosed?
Liver biopsy
What values do we look at to determine severity of cirrhosis?
Bilirubin
Albumin
Ascites
Encephalopathy
Prothrombin time
(all part of the child-pugh score)
What model do we look at for assessing the severity of cirrhosis?
MELD (predicts 3-month mortality)
**Used in transplant prioritizations
**Not used to adjust medications
Is cirrhosis reversible?
NO!!!!