Hep viruses Flashcards
Relapse after sofosbuvir/ledipasvir - what next?
Sofosbuvir/Velpatasvir/Voxilaprevir
Which genotypes to use sofosbuvir/ledipasvir?
1 and 4
How to tx genotype 3?
sofosbuvir/velpatasvir or glecaprevir/pibrentasvir
How to tx pt on dialysis with HCV GT1a?
Elbasvir/Grazoprevir
Sofosbuvir/Velpatasvir treatment duration for HCV GT 1a in pts with cirrhosis?
12 weeks
How long after exposure and infection with HCV does it take AB to develop?
6 weeks - so if suspect infxn prior just check HCV RNA
What is immune tolerant phase of HBV?
1st 20-30 yrs in vertical transmission - norml LFTs but high HBV DNA, HBeAg+ but AB -
What is immune clearance phase of HBV?
Start to fight virus, LFTs go up and HBeAB turns positive, HBV DNA may decline - after immune tolerant
What is HBV inactive carrier phase?
After immune clearance - will have low HBV DNA and +HBeAB, normal LFTs
If HBV DNA ~20,000 and normal LFTs, what is best tx?
Monitor LFTs every 6 months
What is best med for HBV seroconversion from HBeAg to HBeAB+ and HBsAg to HBsAB+?
peginterferon alfa 2a
Which pts at risk for fulminant liver fx with HAV if infected?
HCV pts
Pt with acute HAV - what to offer to household contacts at risk of dz?
HAV Immune globulin
Do pts with previous HBV exposure and clearance need monitoring of labs or tx when starting infliximab for IBD?
No, no action needed
If chronic hep B and starting infliximab, wat should be done?
Start entecavir
If previous HBV clearance and starting chemotx for CA, what should be done?
HBV ppx during tx and for 12-18 months following tx.
HCV GT1B and reflux on PPI, which drug regimen to use?
grazoprevir/elbasvir
Which drugs interact with PPI?
Sofosbuvir/ledipasvir, sofosbuvir/velpatasvir
T/F: If starting grazoprevir/elbasvir, pts with HCV GT1B should have NS5A RAV testing.
False, 1A pts should have resistance testing, 1B do not need it.
If fail primary HCV tx (ie sofosbuvir/ledipasvir), what should be used next for tx?
sofosbuvir/velpatasvir/voxilaprevir - approved in GT 1-6
T/F: PPX should be used in pts with HBsAg-negative/anti-HBc+ serologic profile who are being treated with prednisone >20 mg daily (or equivalent) for ≥ 4 weeks or are on chronic moderate dose prednisone therapy (10-20 mg daily) during treatment and for at least 6 months after stopping immunosuppression.
True - 1-10% risk of reactivation
T/F: Sofosbuvir/ledipasvir can be used for GT2 HCV.
False, use Glecaprevir/pibrentasvir
T/F: Sofosbuvir should not be used in GFR <30
True
What should tx GT2 or 3 pt with GFR < 30?
Glecaprevir/pibrentasvir