WK 2 - Pharm slides Flashcards
(62 cards)
MDR - TB
TB is resistant to which drugs?
isoniazid
rifampin
the most effective anti-TB drugs
What are the most effective anti-TB drugs?
isoniazid & rifampin
XDR-TB
Resistant to which drugs?
- isoniazid & rifampin
- All fluoroquinolones
- at least one injectable second line anti-tb drug
TB always contains how many drugs minimum?
two or more
which the organism is sensitive to
How do you determine sensitivity for drug for TB?
sputum culture
takes 6 weeks
While waiting for sputum culture for TB how do you begin treatment?
what is it based on?
patterns of drug resistance in the community and immunocompromised patient
Active TB is how many drug therapy?
4
Which two drugs are always used to start treatment of TB?
isoniazid & rifampin
can include as many as 7 drugs
If the organism is not resistant to isoniazid & rifampin - what is the treatment protocol?
isoniazid & rifampin & pyrazinamide &
ethambutol – for 8 weeks
Then isoniazid & rifampin for 18 weeks
minimum for active TB
Who gets involved when there is a diagnosis of TB?
What agency gets notified?
Public Health
What is the standard of care for TB when it comes to adherence?
DOT
Direct Observation Therapy
Healthcare employee watch patient take PO meds
How often is a TB evaluated -
Clinical symptoms?
Sputum tests?
After cultures become negative?
Clinical symptoms - each clinic visit
Sputum tests - every 2-4 weeks
After cultures become negative - monthly
What is Latent TB treated with?
2 options:
- Isoniazid
- Isoniazid & rifampin (12 years or older; HIV infection Not taking antiretroviral drugs
What are the clilnical symptoms of TB
fever
malaise
anorexia
cough
Areas that are high risk for TB?
Prisons, jails
nursing homes
hospitals
homeless shelters
How many drugs for Latent vs Active TB?
Active 4+
Latent 2+
Adverse effects of Isoniazid?
Hepatoxicity (no ETOH)
Peripheral neuropathy
what does isoniazid treat?
active and latent TB
Isoniazid interacts adversely with what drug causing a need to monitor that drug’s levels?
Phenytoin. (seizure med)
Rifampin has what common side effect that is normal but alarming to see?
Discoloration of bodily fluids - urine, sweat, saliva, tears
turn a reddish orange color
What is the drug of choice for pulmonary TB?
Rifampin and other TB drugs
Also - rifapentine (a long acting rifampin)
Adverse effects of Rifampin?
Hepatoxicity
Reddish orange bodily fluids
What does rifampin do to oral contraceptives?
renders them ineffective
use alternative
In HIV patients, what drug is preferred over rifampin?
rifabutin