Antibiotics Paeds

Question 1

Encephalitis

Answer 1

Aciclovir 20 mg/kg iv 8H (age 12y)

Question 2

Meningitis Age >2months

Answer 2

Ceftriaxone 50 mg/kg/dose (2g) iv 12H

Question 3

Meningitis Age

Answer 3

Cefotaxime 50 mg/kg (2g) iv 6H + Benzylpenicillin 60 mg/kg iv 12 H (wk 1 of life) 6-8H 4H (>wk 4 of life)

Question 4

Meningococcal prophylaxis

Answer 4

Rifampicin 10 mg/kg (600 mg) po 12H for 2d

Question 5

Orbital cellulitis

Answer 5

Flucloxacillin 50 mg/kg (2 g) iv 6H AND

Ceftriaxone 50 mg/kg/dose (2g) iv 12H

Question 6

MILD Periorbital cellulitis

Answer 6

Amoxycillin/Clavulanate (400/57 mg per 5 mL)

0.3 mL/kg (11 mL) po 12H

Question 7

Moderate Periorbital cellulitis

Answer 7

Flucloxacillin 50 mg/kg (2 g) iv 6H

Question 8

SEVERE Periorbital cellulitis

Answer 8

Flucloxacillin 50 mg/kg (2 g) iv 6H AND

Ceftriaxone 50 mg/kg/dose (2g) iv 12H

Question 9

Peritonitis

Answer 9

Ampicillin 50 mg/kg (2 g) iv 6H and
Gent 7.5 (6 if >10y) mg/kg (360 mg) iv daily and
Metronidazole 15 mg/kg (1 g) iv stat, then 7.5 mg/kg (500 mg) iv 8H

Question 10

Giardiasis

Answer 10

Metronidazole 30 mg/kg (2 g) po daily for 3d

Question 11

UTI and SICK

Answer 11

Benzylpenicillin 60 mg/kg (2 g) iv 6H and

Gent 7.5 (6 if >10y) mg/kg (360 mg) iv daily

Question 12

UTI and not sick and >6mo

Answer 12

Trimethoprim 4 mg/kg (150 mg) tablets po 12H or
if syrup necessary then Co-trimoxazole
(8/40 mg per mL) 0.5 mL/kg (20 mL) po 12H

Question 13

Tonsillitis

Answer 13

consider no antibiotics

phenoxymethylpenicillin/Penicillin V 250 (500 if >10y) mg po 12H for 10d

Question 14

Otitis media

Answer 14

Consider no antibiotics for 48 hrs (especially if >2y old) or
Amoxycillin 15 mg/kg (500 mg) po 8H

Question 15

Pertussis

Answer 15

Clarithromycin 7.5 mg/kg (for child > 1month) up to 500 mg po 12H for 7d
(No Clarithromycin syrup available at present)

Azithromycin 10 mg/kg (for infant

Question 16

Pneumonia mild

Answer 16

Amoxycillin 15 mg/kg (500 mg) po 8H or

Roxithromycin 4 mg/kg (150 mg) po 12H If considering Mycoplasma

Question 17

Pneumonia moderate

Answer 17

Benzylpenicillin 60 mg/kg (2 g) iv 6H and

Roxithromycin 4 mg/kg (150 mg) po 12H If considering Mycoplasma

Question 18

Pneumonia Severe

Answer 18

Flucloxacillin 50 mg/kg (2 g) iv 4H and
Gent 7.5 (6 if >10y) mg/kg (360 mg) iv daily and
Azithromycin 15 mg/kg (500 mg) iv stat then 5mg/kg iv daily If considering Mycoplasma

Question 19

Adenitis

Answer 19

Flucloxacillin 50 mg/kg (2 g) iv 6H

Question 20

Bites mild/moderate

Answer 20

Amoxycillin/Clavulanate (400/57 mg per 5 mL)

0.3 mL/kg (11 mL) po 12H

Question 21

Bites: Severe

Answer 21

Ticarcillin/clavulanate 50mg/kg (3g) iv 6H

Question 22

Cellulitis Mild

Answer 22

Cephalexin 25mg/kg (500mg) po 6H

Question 23

Cellulitis Mod/severe

Answer 23

Flucloxacillin 50 mg/kg (2 g) iv 6H

Question 24

Impetigo

Answer 24

Mupirocin 2% ointment 8H if localised or

Cephalexin 25mg/kg (500mg) po 12H

Question 25

Head lice

Answer 25

1% Permethrin liquid or cream rinse

Question 26

scabies

Answer 26

5% Permethrin cream (treat all family)

Question 27

Osteomyelitis/Septic arthritis

Answer 27

Flucloxacillin 50 mg/kg (2 g) iv 4-6H

Question 28

Septicamia (ie sick child)

with normal CSF

Answer 28

Flucloxacillin 50 mg/kg (2 g) iv 4H and

Gent 7.5 (6 if >10y) mg/kg (360 mg) iv daily

Question 29

Septicaemia (ie sick child)

with unknown CSF

Answer 29

Flucloxacillin 50 mg/kg (2 g) iv 4H and

Cefotaxime 50 mg/kg (2 g) iv 6H