Beta-Lactams
What bacteria is penicillin still the drug of choice for?
Syphilis
Which atypical bacteria are treated by macrolides?
Legionella, Mycoplasma, Chlamydia
Which tetracycline is most commonly used in practice today?
Doxycycline
First‑line treatment for bacterial conjunctivitis (non‑contact lens wearer)?
Polytrim (Polymyxin B/Trimethoprim) 1-2 gtts into affected eye 4 times a day x 5 days or erythromycin ointment .5 inch (1.25 cm) deposited inside the lower lid 4 times a d x 5 days
What finding on fluorescein stain requires urgent referral?
Corneal ulceration (keratitis)
A penicillin-class antibiotic, this drug is effective against bacteria like Streptococcus, Enterococcus, and certain strains of E. coli and H. influenzae, but it is susceptible to βbeta-lactamase enzymes
What is Amoxicillin?
Why should macrolides not be given with statins?
Risk of muscle breakdown (rhabdomyolysis)
Name one tick‑borne illness treated by doxycycline.
Lyme disease or Rocky Mountain Spotted Fever
Which kind of conjunctivitis is associated with pre-auricular lymphadenopathy?
viral conjunctivitis
Which type of glaucoma presents with severe acute eye pain, halos, nausea/vomiting?
Acute Angle‑Closure Glaucoma
What is the treatment of choice for Group B strep prophylaxis in mothers during labor?
IV Penicillin
What is a serious cardiac side effect of macrolides?
QT prolongation
What patient instruction is key when taking doxycycline?
Stay upright 30 minutes after dose; take with full glass of water (to prevent esophagitis)
What eye disorder is associated with greasy eyelids and dandruff and is caused by meibomian gland dysfunction?
Posterior Blepharitis
Which eye condition shows dendritic lesions with fluorescein?
Herpes keratitis
Which cephalosporin generation treats Pseudomonas?
3rd generation (Ceftazidime) & 4th generation (Cefepime)
Which fluoroquinolone is preferred for Pseudomonas coverage in contact lens–related infections?
Ciprofloxacin
Which sulfonamide is commonly used for MRSA and UTIs?
TMP‑SMX (Bactrim)
What is the treatment is required for Chlamydia conjunctivitis?
Doxycycline 100 mg PO BID × 7 days OR Azithromycin 1 g PO once and or topical antibiotics.
What is the hallmark symptom of retinal detachment?
“Curtain coming down” over vision
Which bacteria are NOT covered by cephalosporins? (Hint: “LAME”)
Listeria, Atypicals, MRSA, Enterococci
Name two serious adverse events of fluoroquinolones
Tendon rupture; C. difficile diarrhea
Name a life‑threatening adverse effect of sulfonamides.
Stevens‑Johnson Syndrome (SJS)
Which condition presents with severe purulent discharge within 12‑24 hours?
Gonococcal conjunctivitis
A patient with severe eye pain, ciliary flush, and small pupil likely has what condition?
Iritis (anterior uveitis)