Antibiotics and Infections

Question 1

Acute Otitis Media

Answer 1

H. flu (nontypable), Moraxella, Strep pneumo (#1)

- Tx = amoxicillin (80-90 mg/kg/day) split into BID for 10 days

Question 2

Strep Throat

Answer 2

Group A strep

- Tx = amoxicillin (45 mg/kg/day) for 7 days

Question 3

Pneumonia

Answer 3

1 - strep pneumo, staph, viral, mycoplasma/chlamydiophilia

CXR: CAP –> discrete opacity/consolidation
- atypical –> bilateral diffuse infiltrates

Question 4

Strep pneumo PNA

Answer 4

1st Tx = ampicillin IV or amoxicillin PO

resistant –> ceftriaxone IV or ceftanir PO

Question 5

Staph aureus PNA

Answer 5

vancomycin

Question 6

Viral PNA

Answer 6

no ABx

Question 7

Mycoplasma/chlamydiophilia PNA

Answer 7

atypical PNA -> teens and don’t look that sick

Tx = azithromycin

Question 8

UTIs

Answer 8

E. Coli and Klebsiella (get a culture to know for sure)
Tx = omnicef (3rd gen ceph)
Enterococcus –> amoxicillin

Question 9

Cellulitis

Answer 9

Group A strep
Tx = keflex (1st ceph)
Failed outpatient tx? –> IV clindamycin or vanco

Question 10

1st Generation Cephalosporins

Answer 10

Keflex (PO) - cellulitis

Ancef (IV) - perisurgical

Question 11

Abscesses

Answer 11

Staph aureus
Tx = MSSA (keflex), MRSA (bactrim or Clindamycin)
DRAINAGE

Question 12

2nd Genereation Cephalosporin

Answer 12

It’s a FACt that a FOX has FUR
Cefaculor
Cefoxitin
Cefuroxime

Question 13

3rd Generation Cephalosporin

Answer 13

TRI and FIX TAZ's TAXes
Ceftriaxone --> can displace bilirubin, don't use in babies
Cefixine
Ceftazidime
Ceftaxime --> sepsis in babies

Question 14

4th Generation Cephalosporin

Answer 14

Cefipime –> anti-pseudomonal coverage

- used in cancer kids with neutropenia