Pharm Antiinfective Drugs pt 1

Question 1

Blepharitis (2)
and organisms (2)

Answer 1

Erythromycin or Bacitracin

Staph aureus, staph epidermidis

Question 2

Tinea capitis

What labs must you check?

Answer 2

Griseofulvin (PO)

Must check LFT’s

Question 3

Otitis media (1)
What if it’s recurrent?
What if both of those fail?
3 organisms

Answer 3

Amox
If recurrent/resistant: Amox/Clav
Poor compliance, or amox/clav fails: Ceftriaxone
Strep pneumonia, H. flu, M cat

Question 4

Conjunctivitis

Answer 4

Main cause is viral
If bacterial..
Staph aureus - Any antibiotic will work
Neonates: think of Chlamydia/Gonorrhea: Azithromycin & Ceftriaxone

Question 5

Stye/Hordeolum

Answer 5

Ext: Warm compresses. No tx necessary
Int: Warm compresses + Amox/Clav
both from staph aureus

Question 6

Bullous Myringitis

4 organisms

Answer 6

Clarithromycin (poor tasting. mix with chocolate cool whip)

Strep pneumonia, H flu, M cat, Mycoplasma

Question 7

Orbital Cellulitis

Answer 7

Ceftriaxone + Clindamycin
Staph aureus, Staph epidermidis, H flu
PCN allergy: VAC - Vancomycin, Aztreonam, Clindamycin

Question 8

Otitis Externa (swimmer’s ear)

Answer 8

Bacitracin + Polymyxin B
Immunocompromised patients: Levofloxicin
From Pseudomonas aeruginosa

Question 9

Acute Sinusitis

Answer 9

1st. Amox (PO)
2. Amox/Clav (PO)
PCN allergy: Levofloxacin
Viral is main cause. Strep pneumoniae, H flu, M cat., Anaerobes
Also: Nasal steroids, decongestants, antihistamine