Diabetes, HIV, Asthma, Pediatrics, Drugs in Pregnancy & Lactation Flashcards
HIV
What is the main indicator of immune function in HIV that determines the need for prophylaxis therapy against opportunistic infections?
CD4 count
HIV
What is the most important indicator of response to antiretroviral therapy & should be measured at baseline and regularly throughout therapy?
HIV-1 RNA
“Viral load”
HIV
Transmission
Semen
Blood
Body secretions
“Some Big Bullshit”
HIV
Define Horizontal transmission
Sex or needle sharing
HIV
Define Vertical transmission
Mother to baby (pregnancy), birth or breastfeeding
HIV
What is the gold standard HIV test called?
HIV ELISA
test for HIV antibody in the blood
HIV
What must a patient have to be diagnosed as HIV positive?
Positive HIV ELISA test + positive supplemental tests
HIV
What are the stages of HIV replication cycle & where does each drug work?
Stage 1: Attachment (CCR5 antagonists)
Stage 2: Fusion (Fusion inhibitors)
Stage 3: Reverse transcription (NRTIs & NNRTIs)
Stage 4: Integration (INSTIs)
Stage 5: Transcription & Translation (none)
Stage 6: Assembly (none)
Stage 7: Maturation/Budding (PIs)
HIV drug classes
CCR5 Antagonist
Maraviroc (Selzentry)
HIV drug classes
Fusion Inhibitor
Enfuvirtide (Fuzeon)
HIV drug classes
NRTIs
Lamivudine (Epivir)
Abacavir (Ziagen)
Tenofovir (Viread)
Emtricitabine (Emtriva)
HIV drug classes
NNRTIs
Efavirenz (Sustiva)
Rilpivirine (Edurant)
“virenz”
HIV drug classes
INSTIs
Raltegravir (Isentress)
Elvitegravir (Vitekta)
Dolutegravir (Tivicay)
“gravir”
HIV drug classes
PIs
Ritonavir (Norvir)
Atazanavir (Reyataz)
Darunavir (Prezista)
“navir”
HIV
What are antiretrovirals (ARTs) goals?
- Preserve immune function
- Suppress viral load to undetectable levels
- Prevent transmission
- Reduce morbidity
HIV
What is the adherence rate for ART to be effective long-term?
95%
HIV
What is the recommended regimen for pregnant women?
2 NRTIs + PI (w/ ritonavir boost)
or
NNRTI + INSTI
HIV
All NRTIs have a boxed warning for what?
Lactic acidosis & hepatomegaly with steatosis
HIV
What is Emtricitabine (Emtriva) boxed warning?
severe exacerbation of HBV
if drug is stopped –> may also cause hyperpigmentation
HIV
Truvada generic
Tenofovir + Emtricitabine
HIV
Atripla generic
Tenofovir + Emtricitabine + Efavirenz
HIV
What is the boxed warning for Tenofovir (Viread)?
Severe Exacerbation of HBV
if drug is stopped may also cause ARF & osteomalacia
HIV
All NNRTIs can cause:
Hepatotoxicity & severe rash (SJS/TEN)
HIV
What ART has a warning for suicidal ideations, fetal toxicity (category D), & convulsions?
Efavirenz (Sustiva)
NNRTI
CNS symptoms usually resolve in 2-4 wks
HIV
What ART may decrease levels of oral contraception & methadone?
Efavirenz (Sustiva)
HIV
Complications of ARTs
- Lactic acidosis w/ hepatomegaly
- Immune reconstitution inflammatory syndrome (IRIS)
- Lipodystrophy: fat redistribution
- Lipoatrophy: loss of fate in face, arm, legs (occurs mostly w/ NRTIs)
- Lipohypertrophy: fat accumulation in back & neck (mostly PIs)
- Diarrhea (mainly PIs)
HIV
What ART is recommended for PrEP?
Truvada
HIV
For PEP, treatment should be initiated when?
Within 72 hours & includes a 3-drug regimen of Truvada + raltegravir (Isentress) for 4 weeks
Asthma
What is 1st line for maintenance therapy?
ICS
Asthma
What is the 1st line for rescue therapy
SABA
Asthma
Stepwise approach for asthma
Step 1: SABA PRN Step 2: Low-dose ICS Step 3: Low-dose ICS + LABA or Medium-dose ICS Step 4: Medium-dose ICS + LABA Step 5: High-dose ICS + LABA Step 6: High-dose ICS + LABA + Oral CCS
Asthma
Patient should only step down if symptoms have been controlled for how long?
3 months
Asthma
If patient is using their SABA for > 2 days/wk then:
Step up maintenance therapy
Asthma
What is the injectable that can be considered for patients with allergies & positive skin test called?
Omalizumab (Xolair)
Asthma
Omalizumab (Xolair) MOA & boxed warning
MOA: IgG monoclonal antibody that inhibits IgE binding
Boxed warning: anaphylaxis (given in office)
Asthma - Drug Class
Name the SABAs
Albuterol (ProAir, Ventolin, Proventil)
Levalbuterol (Xopenex)
Asthma - Drug Class
LABAs
Salmeterol (Serevent)
Formoterol (Foradil)
never used alone due to boxed warning for asthma related deaths
Asthma - Drug Class
ICSs
Beclomethasone (QVAR)
Fluticasone (Flovent, Arnuity)
Budesonide (Pulmicort)
Asthma - Drug Class Combos
Advair generic
Fluticasone + Salmeterol
Asthma - Drug Class Combos
Breo generic
Fluticasone + Vilanterol