Pharm - hepatitis and jaundice Flashcards

(64 cards)

1
Q

What list of meds can cause drug induced liver injury

A

acetaminophen
anesthetics
NSAIDs
antimicrobials
antifungals
HIV antiretroviral therapy
oral hypoglycemics
lipid lowering agents

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2
Q

What is R value

A

ALT/ULN ALT
DIVIDED BY
ALP/ULN ALP

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3
Q

What is hepatocellular R

A

R >= 5
more severe prognosis

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4
Q

What is mixed R

A

R = 2-5
More prone to chronic disease

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5
Q

What is cholestatic R

A

R <= 2
more prone to chronic disease

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6
Q

What predicts prognosis with acetaminophen OD

A

Rumack-Matthew nomogram
Kings College criteria

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7
Q

What is the initial management for acetaminophen OD

A

gastric emptying via lavage
activated charcoal within 4 hours ingestion

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8
Q

What is the specific antidote for acetaminophen OD

A

Mucomyst (N-acetyl-cysteine)

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9
Q

What antimicrobials can cause drug induced hepatitis

A

beta lactams
beta lactamase inhibitors

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10
Q

What oral hypoglycemic is assoc with cholestatic injury pattern

A

Glimepiride

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11
Q

What lipid lowering agents may cause drug induced hepatitis

A

statins
ezetimibe

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12
Q

What differentiates acute viral hepatitis from chronic viral hepatitis?

A

greater or less than 6 months
A is only acute

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13
Q

Describe hep A

A

acute, self-limited
person to person via fecal oral route or ingestion of contaminated food or water
assoc with poor sanitation

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14
Q

Hep A clinical presentation

A

incubation period 28 days
symptoms may or may not be present

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15
Q

What labs indicated hep A

A

elevated aminotransferases
detection of IgM antibody to HAV

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16
Q

How to manage hep A

A

no treatment
supportive
avoid hepatotoxic substances

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17
Q

How to prevent hep A

A

hand washing
Havrix and Vaqta vaccines
combo vax Twinrix (HAV and HBV)
Immunoglobulin dose

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18
Q

When to give Havrix

A

0, then 6-12 months

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19
Q

When to give VAQTA

A

0, then 6-18 months

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20
Q

Who is recommended to get Hep A vax

A

all children older than 1
Increased infection risk
-MSM
-injection & non-injection drugs
-occupational risks

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21
Q

Postexposure prophylaxis for HAV

A

if vaxxed, nothing
no vax - vaccine or immunoglobulin as soon as possible within 2 weeks

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22
Q

When is immunoglobulin preferred for HAV postexposure prophylaxis rather than vax?

A

<12 months
Immunocompromised
Chronic liver disease

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23
Q

What is the same between Hep B and Hep C

A

transmitted by blood
targets liver
acute or chronic

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24
Q

What is different between Hep B and Hep C

A

DNA vs RNA virus
vaccine with 3 injections vs no vax
treat with NRTIs vs NSSA inhibitor, protease inhibitor, polymerase inhibitor

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25
What does HBsAg (surface antigen) tell you?
live active virus/active Hep infection
26
What does HBeAG identify?
active replication of HBV
27
What does Anti-HBc (core antigen) indicate?
active virus present or was present but cleared by the immune system
28
What does IgM anti-HBs tell you?
acute phase of infection
29
What does IgG anti-HBs tell you?
immunity from clearing infection or from immunization
30
What will be positive if patient is immune to hep B due to infection and NOT the immunization?
anti-HBc
31
What is the only positive lab if patient is immune to HBV due to immunization?
Anti-HBs
32
What classification is used for hepatitis B?
child turcotte pugh classification
33
What is the common co-infection with HBV?
HIV or HCV
34
What class and specific med is hep B treatment
Nucleoside analog class NRTI - nucleoside reverse transcriptase inhibitors
35
What are some treatment considerations for hep B treatment?
1. After clearance treat another 6 months 2. Renal dose (dose reductions) 3. If treatment is stopped prematurely or abruptly severe acute worsening of liver function may occur
36
What is interferon based therapy for Hep B
Peg-IFN-2a (pegasys) subQ
37
What are adverse effects of Pegasys
fatigue autoimmune disorders
38
What patients are ineligible for Pegasys therapy
Baseline neutrophil count <1500 Platelet count <90,000 Hgb < 10
39
What are nucleos(t)ide analogs for hep B treatment?
Adefovir Entecavir Lamivudine Tenofovir (also for HIV)
40
When should Adefovir not be used and why
HIV concomitant infection because if HIV untreated can cause resistance
41
What is recommended for hep B prevention testing
HBsAG testing immunization offered to all individuals testing seronegative
42
Who is recommended to get Hep B vax
multiple sexual partners MSM IVDU HIV + patients End stage renal disease Workers at high risk of occupational exposure
43
What are the single antigen formations of HBV vax
Recombivax HB Engerix-B
44
What is a combination HBV vax
Twinrix (HBsAg and HAV)
45
What vaccines for HBV for children?
comvax pediarix
46
When is serologic testing for immunity recommended?
advised in situations of known status indicating clinical management -health care workers -HIV infections -immunosuppressed patients
47
What determines the efficacy of postexposure prophylaxis?
how quickly the vaccine is administered -within 7 days for needle stick -within 14 days for sexual exposure
48
What should be done for perinatal exposure
if born to a HBsAg + mother give HBV vaccine and HBIG within 12-24 hours after birth
49
What should be given if exposed to source with HBsAg positive
completed vaccine series - give booster dose
50
What should be given to unvaccinated individuals when exposed?
HBIG and begin vaccine series within 24 hours postexposure
51
What are the risk exposures for Hep C that indicate screening/testing
hemodialysis - long term Needle stick (health care workers) Newborn of HCV + mother M/M unprotected sex
52
What is the goal of Anti-HCV therapy
Virologic cure continuous absence of detectable HCV RNA at least 12 weeks after completion of therapy
53
What are the clinical benefits of hep C treatment
reduced complication development improved quality of life reduce all-cause mortality
54
What factor improves outcomes of Hep C treatment
early initiation
55
What is common co infection with hep C
HIV or HBV
56
What are the protease inhibitors used to treat Hep C
Grazoprevir Paritaprevir Ritonavir Voxilaprevir Glecaprevir
57
MOA with protease inhibitors
inhibit cleavage of HCV-encoded polyprotein
58
What are NS5B RNA polymerase inhibitors used to treat Hep C and MOA
Dasabuvir Sofosbuvir Inhibits NS5B RNA-dependent RNA polymerase activity
59
What are the NS5A inhibitors used to treat Hep C and MOA
Daclatasvir Elbasvir Ledipasvir Ombitasvir Veltpatasvir Pibrentasvir Binds to the N-terminus on domain 1 of the HCV
60
What to note about sofosbuvir+Velpatasvir (Epsula)
covers all genotypes (1-6)
61
What to note about Glecaprevir + Pibrentasvir (Mavyret)
Covers all genotypes (1-6) Protease + NS5A inhibitor
62
What to note about Anti-HCV therapy concerns
Treating HCV can lead to reactivation of HBV Important to obtain adequate history and screening!
63
What is an Anti-HCV therapy
PEG-IFN-2 (Pegasys) + ribavirin
64
Is there a vaccine for Hep C prevention
No