IM:肝膽胰
55 flashcards · Other · by Wanying Koh
direct/total bil levels: <15% 35-45% 60-75% >85%
hemolysis hepatocellular 肝: virus, alcohol mixed 肝膽: drug induced hepatitis obstructive 膽: stones, cholangiocarcinoma
primary biliary cirrhosis more frequent in middle aged males or females? dx tx prednisolone? what other tx
middle aged females dx: antimitochondrial antibody (AMA+) liver biopsy tx NO prednisolone give ursodeoxycholic acid URCA, liver transplant
high direct/total bilirubin levels (85%) + high GGT & ALK-P indicative of what problems
膽道疾病為主 obstructive jaundice cholestasis cholangioCa
bilirubin in urine is conjugated or unconjugated?
only conjugated bilirubin present in urine (unconjugated bil x albumin in blood, not filtered into urine)
half-life of: unbounded bilirubin bilirubin x albumin
2-4hr 2 weeks (half-life of albumin)
low direct/total bilirubin level + normal LDH, hematocrit
unconjugated bil + can r/o hemolysis => Gilbert / Crigler-Najjar (U G-C)
Gilbert vs Crigler-Najjar
Gilbert: 無其他不適, no kernictus C-N: kernictus
s/s suspect what dz: tea-coloured urine clay-coloured stool Courvoisier sign RUQ pain
hemolysis pancreatic ca cholangioca CBD stone
Courvoisier sign definition
enlarged, non-tender GB jaundice
SAAG > 1.1g/dL (portal HTN related) what diseases 記得 > means portal related < means non-related
pre-hepatic: portal v. thrombosis hepatic: cirrhosis post-hepatic: heart failure, Budd-Chiari syndrome [liver 製造ascites 所以 liver 最大 => SAAG 大 > 1.1]
nephrotic syndrome SAAG ?
SAAG <1.1g/dL non-portal HTN related 記得 > means portal related < means non-related
low WBC, high RBC ascitic alb: 3.0g/dL serum alb: 3.5g/dL dx?
SAAG < 1.1g/dL ascitic fluid total protein AFTP >2.5g/dL suspect: neoplasm, infection low WBC => r/o infection Dx: neoplasm
AFTP <2.5g/dL
SAAG < 1.1g/dL: nephrotic syndrome SAAG > 1.1g/dL: cirrhosis
AFTP >2.5g/dL
SAAG <1.1g/dL infections malignancy SAAG >1.1g/dL heart failure --> cardiac ascites Budd-Chiari syndrome
hepatic hydrothorax 是什麼 通常發生在那一側
pleural effusion (usually >500 mL) in a patient with cirrhosis who does not have other reasons to have a pleural effusion (eg, cardiac, pulmonary, or pleural disease) right side
flapping tremor indicative of what dx tx
hepatic encephalopathy tx lactulose:排便 --> 才能排出toxin ABx:rid of NH3 producing bacteria
liver cirrhosis pts 不能用哪款ABx
aminoglycosides:causes nephrotoxicity --> may worsen cirrhosis pts hepatorenal syndrome
liver cirrhosis + fever + abd pain blood tests show PMN > 250 dx
可能 SBP
SBP most common bacteria
GNR 70% (E. coli, Klebsiella) GPC 30% (S pneumoniae, Enterococcus)
Bacteroides fragilis spontaneous or secondary peritonitis?
anaerobic bacteria --> secondary bacterial peritonitis
hep C treatment
peg-IFN + ribavirin
hep B treatment
lamivudine LAM-B
anti-HBc IgG(+) anti-HBc IgM(-) anti-HBe Ag(+) Dx
HBc -- 曾經感染過 IgG(+) -- not active replication Dx: hep B carrier [IgM(+) 才是 active replication]
can hep C be passed on to child by breastfeeding
no (blood or body secretions only)
hep A prevention procedure
check for hep A antibody 抗體 (NOT antigen 抗原) if no AB, can receive hep A vaccine
hep A immunoglobulin 什麼時候用
post-exposure prophylaxis
most common mode of transmission of hep B in taiwan
vertical transmission
endemic areas mode of transmission of hep b
vertical, horizontal 都有
liver transplant most common indication in taiwan other countries
chronic hep B chronic hep C, alcoholic hepatitis
which hep virus 跟 fatty liver 無關 hep B vs. hep C
hep B 無關
alcohol related to what hep virus
hep C HCV infection is particularly common in alcoholics, and the disease course and rate of progression can be exacerbated by alcohol consumption
acetaminophen overdose 會不會傷害 liver ? kidney? pathology?
liver, kidney 都會被傷害 in liver: centrilobular necrosis
fatty liver in u/s image
hyperechoic (白) compared to kidney [normal: same echogenicity as kidney] [vs. cirrhosis: 後者 shrunken and lumpy] in CT, fatty liver hypodense (比 pancreas 暗 -- normal 肝比脾亮)
mallory body pathology present dx?
alcoholic hepatitis
caput medusae (umbilicus 周遭有明顯血管) spleen dullness ascites indicative of what dx?
spleen dullness => splenomegaly all symptoms of portal hypertension SAAG > 1.1
esophageal varices tx
non-selective B blocker regular band ligation
precipitants of hepatic encephalopathy
infection hypoK high protein diet
hepatic encephalopathy pts can consume branched-chain aa (valine, isoleucine, leucine)?
yes. enzyme needed to break down these aa found in other tissues, not liver
Milan criteria define used for what
define: used to determine whether pt is fit for liver transplant single tumor <5cm OR multiple (2-3) tumors <3cm AND NO vascular invasion, extrahepatic spread
hepatic granulomas associated with which meds sulfonamides tetracycline isoniazid allopurinol
all except tetracycline
liver cirrhosis pts 容易得 what kind of GB stones
pigment stones
ursodeoxycholic acid 可 treat what kind of GB stones
cholesterol stones (pigment stones 不行)
post-cholecystectomy diarrhea treat w what
cholestyramine
RANSON criteria on admission first 48hr
on admission: ASS 乳白 age, sugar, AST, LDH, WBC first 48hr: BUNny base sequester Ca, HCT, O2 BUN inc, base deficit, sequestration of fluid, dec Ca, HCT , PaO2
hep C progressive factors
male alcohol 40-55yo 中年 喝酒 男性 (HCV -> 4/5 chronic hepatitis -> 1/5 cirrhosis -> 1/4 HCC)
can use morphine in sphincter of oddi spasm pts?
NO. morphine causes sphincter of oddi contraction --> pancreatic pressure inc and worsens condition
UDCA can be used to treat GB stones in what pts
stone < 1.5cm cholesterol stones (pigment stones, calcified stones 不行) CBD no obstruction
hep B disease severity related to subtype or genotype B genotype has lower HCC risk than C genotype
genotype genotype C higher risk than genotype B hep B ---> 5% chronic hep B
hep B tx nucleos/tide analogues can treat 重症 pts nucleos/tide analogues can change clinical course nucleos/tide analogues can decrease complications and mortality treat until?
yes cannot change clinical course can dec complications and mortality rates HBsAg seroconversion post-3 mo, or HBeAg seroconversion post-6 mo
HCC paraneoplastic syndrome % 包括 blood abnormalities
30-40% pts hyper Ca, hypoglycemia, erythrocytosis, hypercholesterolemia 高 Ca, cholesterol, RBC // 低 glucose
liver during pregnancy acute fatty liver of pregnancy occurs when ? 會有什麼pathology HELLP syndrome 主要立即生產為治療? AST, ALT, ALP levels during pregnancy
third trimester microvesicular fat 對 ALP inc, AST, ALT no change
hepatic encephalopathy need to control protein intake? MgO as treatment? ammonia levels related to severity? causes
NO need to control protein intake, unless all other tx options exhausted NO. use lactulose - maintain gut acidity unrelated
cirrhosis with portal HTN cirrhosis 改變liver BV distribution - some areas hypodense, some areas hyperdense 亮亮 = blood vessels = varices caused by portal HTN from liver cirrhosis
liver cirrhosis 數值
LFTs AFT/ALT inc T bil inc PT/INR prolong Alb dec Hematology tests WBC, RBC, plt dec Chemistry hypoNa Fe/TIBC inc ferritin inc
newest first line for hep C
oral DAA ((direct acting antiviral agents) old - peg-IFN + ribavirin