Pediatric Antibiotic Guidelines
Pediatric Antibiotic Guidelines
Paediatric Antibiocard:
Empirical Antibiotic Guidelines
Document ID CHQ-GDL-01202
Primary Document
Custodian Director, Infection Management and Prevention Approval date 27/09/2024
Services Medical Lead, Antimicrobial Stewardship
HUMAN RIGHTS
This governance document has been human rights compatibility assessed. No limitations were identified
indicating reasonable confidence that, when adhered to, there are no implications arising under the Human
Rights Act 2019.
PURPOSE
The recommendations of this guideline are for the initial treatment of presumptive infections in patients
cared for by Children’s Health Queensland (CHQ). These guidelines are to be used only before the results
of microbiological investigations are available or finalised.
SCOPE
This guideline provides information for all Queensland Health employees (permanent, temporary and
casual) and all organisations and individuals acting as its agents (including Visiting Medical Officers and
other partners, contractors, consultants and volunteers).
1
GUIDELINE
Introduction
Standards of Antimicrobial Stewardship in Children’s Health Queensland
• Take cultures before starting antibiotics. In children commenced on empiric MRSA coverage, please do
MRO screening swabs for MRSA to guide ongoing management/oral stepdown.
• Cease antibiotics if cultures negative at 48 hours except if:
– the child has signs of severe sepsis.
– cultures were taken after antibiotic treatment was started, discuss with Infectious Diseases (ID) team.
– ongoing infection is likely.
• Change to narrow spectrum antibiotics once sensitivities are known.
• Consult Infection specialist.
– if patient has a previous (or new onset) severe antimicrobial hypersensitivity reaction (include the
following information: type of antimicrobial, type of reaction and severity, onset of reaction in relation to
commencing antimicrobial, treatment required to treat symptoms).
– for recommendations for treatment duration in confirmed infections.
• Document indication, Infectious Diseases (ID) approval number (where applicable) and planned
duration/review date on the electronic Medication order in the integrated electronic medical record (ieMR)
or the Paediatric National Inpatient Medication Chart (P-NIMC) when prescribing antimicrobials.
• Daily review of antibiotic plan (stop/continue antibiotics) should occur during ward round, review is to
include:
– Consideration of Early Intravenous (IV) to Oral Switch Therapy - Patients should be reviewed at 24 to
48 hours to consider whether early IV to oral switch would be appropriate. Refer to CHQ-GDL-01057
Antimicrobial treatment: Antibiotic duration and timing of the switch from intravenous to oral for common
bacterial infections in children for further information. Exercise caution when considering a switch to oral
in neonates and infants because of the relatively high incidence of bacteremia and the possibility of
variable oral absorption.
– Review of pathology results and appropriate antimicrobial dosing and choice based on these results.
• Seek Pharmacist / ID advice on appropriate therapeutic drug monitoring (TDM) and appropriate dosing for
patients in renal failure
– Paediatric Aminoglycoside (Tobramycin/Gentamicin/Amikacin) Guideline
– Paediatric Vancomycin Therapeutic Drug Monitoring
• Patients labelled with an antibiotic allergy have longer hospital stays and increased exposure to
suboptimal antibiotics. Take a comprehensive antimicrobial allergy history and assess the risk as per the
CHQ-GDL-01076 Paediatric antibiotic allergy assessment, testing and de-labelling
• For ID consults:
– Normal business hours (Monday to Friday) – contact QCH ID registrar
• For Queensland Children’s hospital, please also order a “Consult to Infectious Diseases” via iEMR
– Afterhours – page QCH Paediatric infection specialist (ID SMO) on call via QCH switchboard
Febrile neutropenia Refer to CHQ-GDL-01249 Management of Fever in a Paediatric Oncology Patient (Febrile Neutropenia and Febrile
(Oncology / Haematology) Non-neutropoenia). Review at 48 to 72 hours
Febrile non-neutropenia Refer to CHQ-GDL-01249 Management of Fever in a Paediatric Oncology Patient (Febrile Neutropenia and Febrile
(Oncology) Non-neutropenia) Review at 48 to 72 hours
SEPSIS
Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose); Immediate type hypersensitivity
COMMUNITY ACQUIRED OR Ceftriaxone IV 100 mg/kg once daily (maximum 4 g/day).
Ciprofloxacin IV 10 mg/kg/dose
SEPSIS (non PICU) Note: If Meningitis clinically or by LP treat as below under MENINGITIS.
8-hourly
Review antibiotics at 48 hours.
(maximum 400 mg/dose)
Less than 1 month old: Refer to neonatal dosing section.
Cefotaxime IV PLUS Ampicillin IV (or Amoxicillin IV) PLUS
If at risk of nmMRSA: Vancomycin IV
Cefotaxime IV PLUS Lincomycin* IV 15 mg/kg/dose every 8 hourly Seek ID advice within 24 hours.
(maximum 1.2 g/dose).
Less than 1 month old: Refer to neonatal dosing section.
Cefotaxime IV PLUS Ampicillin IV (or Amoxicillin IV) PLUS Clindamycin IV
If at risk of multi-resistant MRSA
Cefotaxime IV PLUS Vancomycin IV 15 mg/kg every 6 hours
(maximum initial Vancomycin dose of 750 mg) (Perform TDM).
CARDIAC
Endocarditis Benzylpenicillin IV 50 mg/kg/dose every 4 hours (maximum 1.8 g/dose) Delayed type hypersensitivity
(Note: For directed therapy, PLUS Flucloxacillin IV 50 mg/kg/dose every 4 hours (maximum 2 g/dose) Cefazolin IV
seek ID advice) PLUS Gentamicin IV (Dose based on adjusted body weight. Perform TDM). 50 mg/kg every 8 hours
• If more than 1 month and less than 10 years old: (maximum 2 g/dose)
7.5 mg/kg once daily (maximum 320 mg/day). PLUS Gentamicin IV
• If more than 10 years old: 6 mg/kg once daily (maximum 560 mg/day). PLUS Vancomycin IV and seek ID
Note: If less than 1 month old, refer to neonatal dosing section. ID review advice within 24 hours.
required within 24 hours
Endocarditis (prosthetic Vancomycin IV (Perform TDM)
valve, nosocomial infection • If more than 1 month old: 15 mg/kg/dose IV every 6 hours Immediate type hypersensitivity,
(maximum initial dose of 750 mg). Gentamicin IV
or community acquired PLUS Vancomycin IV
MRSA is suspected) PLUS Flucloxacillin IV and seek ID advice within 24 hours.
(Note: For directed therapy, • If more than 1 month old: 50 mg/kg/dose IV every 4 hours
seek ID advice) (maximum 2 g/dose)
PLUS Gentamicin IV (Dose based on adjusted body weight. Perform TDM)
• If more than 1 month and less than 10 years old:
7.5 mg/kg once daily (maximum 320 mg/day)
• If more than 10 years old: 6 mg/kg once daily (maximum 560 mg/day)
ID review required within 24 hours. If Pseudomonas aeruginosa cultured,
seek ID advice on appropriate directed therapy.
Note: If less than 1 month old, refer to neonatal dosing section.
Perform TDM for Gentamicin and Vancomycin.
If Pseudomonas aeruginosa cultured, seek ID advice on appropriate
directed therapy.
Less than 1 month old: 5 mg/kg/dose orally twice daily for 2 days.
Public Health Fact sheet Meningococcal disease - antibiotics for close contacts of a person with meningococcal infection: ciprofloxacin, rifampicin
| Health and wellbeing | Queensland Government (www.qld.gov.au)
RESPIRATORY
Community acquired Ampicillin IV (or Amoxicillin IV) PLUS Gentamicin IV Immediate type hypersensitivity,
Pneumonia Age dependent dosing - Refer to neonatal dosing section. seek ID advice.
Neonate Use adjusted body weight for dosing Gentamicin and perform TDM.
(less than or equal to Review antibiotics at 24 to 48 hours.
1 month old)
(Comment: Consider adding oral azithromycin if pertussis, chlamydia trachomatis
likely. Discuss with ID within 24 hours)
Community acquired Amoxicillin orally 30 mg/kg/dose every 8 hours (maximum 1 g/dose). Immediate type hypersensitivity,
Pneumonia (CAP) Azithromycin orally
(more than 1 month old) Comment: Oral antibiotics are sufficient in most children with CAP unless unable 10 mg/kg/dose once daily
to tolerate oral or severe/complicated disease. (maximum 500 mg/dose)
Community acquired Benzylpenicillin IV 60 mg/kg/dose every 6 hours (maximum 2.4 g/dose). Delayed type hypersensitivity,
Pneumonia Review antibiotics at 24 to 48 hours. Cefazolin IV 50 mg/kg/dose
(more than 1 month old) (maximum 2 g/dose) 8 hourly.
(unable to tolerate oral) Immediate type hypersensitivity,
seek ID advice within 24 hours.
Empyema Benzylpenicillin IV 60 mg/kg/dose every 6 hours (maximum 2.4 g/dose) Delayed type hypersensitivity,
(more than 1 month old) PLUS, Lincomycin IV 15 mg/kg/dose every 8 hours (maximum 1.2 g/dose) Cefazolin IV plus Lincomycin IV
and seek ID advice within
Neonates – seek ID advice If < 5 years AND not fully vaccinated for HiB, use Cefotaxime 50 mg/kg/dose 24 hours
(maximum 2 g/dose) 6 hourly PLUS Lincomycin IV
Seek ID advice within 48 hours. Consult respiratory team regarding pleural Immediate type hypersensitivity,
drainage. seek ID advice.
Tracheitis/Epiglottitis Cefotaxime IV 50 mg/kg/dose IV every 6 hours (maximum 2 g/dose) and seek ID Immediate type hypersensitivity,
review within 24 hours. seek ID advice.
Otitis externa Refer to CHQ-GDL-00720 Otitis Externa: Emergency Management in Children for guidance.
Mastoiditis Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose) and seek ID Immediate type hypersensitivity,
review within 72 hours. seek ID advice
GASTRO-INTESTINAL
Appendicitis For patients transferring to theatre for appendicectomy, refer to CHQ-GDL-01064 CHQ Paediatric surgical antibiotic
SURGICAL PROPHYLAXIS prophylaxis guidelines for guidance on peri-operative antibiotic prophylaxis.
Note: To achieve optimal cover, per-operative prophylaxis should be administered at time of induction (knife to skin).
Appendicitis IV antibiotics are not usually required for postoperative treatment of Immediate type hypersensitivity,
UNCOMPLICATED uncomplicated appendicitis.
Gentamicin IV (dose based on
(e.g. no perforation)
adjusted body weight)
If operative intervention will be significantly delayed (> 6 hours) preoperative
PLUS Lincomycin IV
antibiotics below may be started.
If post operative antibiotics are requested a short course (e.g. <72 hours) is 15 mg/kg/dose every 8 hours
usually sufficient: Seek ID advice within 72 hours. (maximum 1.2 g/dose).
Seek ID advice within 48 hours.
Amoxicillin-Clavulanic acid IV
Neonates and Infants (0 to 3 months old):
If less than or equal to 4 kg:
25 mg/kg/dose (amoxicillin component) every 12 hours.
If more than 4 kg:
25 mg/kg/dose (amoxicillin component) every 8 hours.
If associated sepsis,
Give Ceftriaxone IV 100 mg/kg once daily (maximum 4 g/day)
PLUS
Metronidazole IV 7.5 mg/kg/dose every 8 hours (maximum 500 mg/dose).
Seek ID advice within 72 hours.
Giardiasis Metronidazole 30 mg/kg/dose orally once daily (maximum 2 g/dose) for 3 days.
Clostridium Difficile Refer to CHQ-GDL-01058 Paediatric Clostridium (Clostridioides) Difficile Infection - Treatment Guidelines for guidance.
Suspected salmonella (non Refer to CHQ-GDL-63001 Management Guideline for Non-typhoidal Salmonellosis in Children for guidance.,
typhoidal) infection
Pinworms Mebendazole:
(Treat all family members) If less than or equal to 1 year old: 50 mg orally as a single dose.
If more than 1 year old: 100 mg orally as a single dose.
Mild Cellulitis Cefalexin 30 mg/kg/dose orally every 8 hours (maximum 1 g/dose) Immediate type hypersensitivity to
OR penicillin or cephalosporin, give
Mild Periorbital cellulitis
Flucloxacillin 25 mg/kg/dose orally four times a day (maximum 1 g/dose)
Impetigo Trimethoprim / Sulfamethoxazole
(For children who can swallow capsules).
Cervical lymphadenitis orally.
(Outpatient) If at risk of nmMRSA or if family/personal history of boils
(Previous nmMRSA, History of boils or Aboriginal or Pacific islander descent)
Severe cellulitis Flucloxacillin 50 mg/kg/dose IV 6 hourly (maximum 2 g/dose) Immediate type hypersensitivity to
Severe preseptal cellulitis For patients who are likely to require >72 hours of IV therapy, to conserve penicillin, give
Severe cervical peripheral intravenous cannula, suggest Cefazolin switching to 50mg/kg/dose IV Lincomycin IV 15mg/kg 8 hourly
lymphadenitis 8 hourly (maximum 2 g/dose) (maximum 1.2 g/dose)
(Inpatient)
If at risk of nmMRSA or if family/personal history of boils
(Previous nmMRSA, History of boils or Aboriginal or Pacific islander descent)
Lincomycin IV 15 mg/kg/dose every 8 hours (maximum 1.2 g/dose).
Under 5 years AND not immunised against HiB (ie. No HiB containing Immediate type hypersensitivity to
vaccines received): penicillins or cephalosporins,
Cefotaxime IV 50 mg/kg/dose (maximum 2 g/dose) every 6 hours
Lincomycin IV and seek ID advice.
Over 5 years of age:
Flucloxacillin IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose).
For patients who are likely to require >48-72 hours of IV therapy AND have no
long line, to conserve peripheral IV cannula, suggest Cefazolin 50 mg/kg/dose IV
8 hourly (maximum 2 g/dose)
Refer to CHQ-GDL-01067 Paediatric Bone and Joint Infection Management for
further information.
If at risk of nmMRSA or if family/personal history of boils (Previous
nmMRSA, History of boils or Aboriginal or Pacific islander descent)
ADD Lincomycin IV 15 mg/kg/dose every 8 hours (maximum 1.2 g/dose).
Review antibiotics with ID within 48 hours
Moderate to Severe Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose) Immediate type hypersensitivity,
Periorbital cellulitis (under 5 If peri-orbital or orbital cellulitis suspected, refer to CHQ-GDL-00723 Peri-Orbital
seek ID advice.
years and not immunised and Orbital Cellulitis: Emergency Management in Children
against HiB) Review antibiotics with ID within 48 hours
OR If at risk of nmMRSA:
Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose).
Orbital Cellulitis (ALL ages)
PLUS Lincomycin IV 15 mg/kg/dose every 8 hours (maximum 1.2 g/dose)
Review antibiotics with ID within 48 hours
If at risk of multi-resistant MRSA:
Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose)
PLUS Vancomycin IV 15 mg/kg/dose every 6 hours
(maximum initial dose of 750 mg). (Perform TDM for Vancomycin).
Review antibiotics with ID within 48 hours
Suspected necrotising Cefotaxime IV 50 mg/kg/dose every 6 hours (maximum 2 g/dose). Immediate type hypersensitivity
fasciitis PLUS Lincomycin IV 15 mg/kg/dose every 8 hours (maximum 1.2 g/dose) seek ID advice.
PLUS Vancomycin IV 15 mg/kg/dose every 6 hours
(maximum initial dose of 750 mg). (Perform therapeutic drug monitoring for
Vancomycin).
Seek ID advice within 24 hours.
Compound fractures For open fractures with no clinical evidence of skin or soft tissue infection Immediate type hypersensitivity
or severe tissue damage, give systemic antibiotic prophylaxis: Lincomycin IV and seek ID advice.
Cefazolin IV 50 mg/kg/dose (maximum 2 g/dose) every 8 hourly and seek ID
advice within 24 hours.
For open fractures with severe tissue damage or clinical evidence of skin or Immediate type hypersensitivity
soft tissue infection: Ciprofloxacin IV
Piperacillin - Tazobactam IV 100 mg/kg/dose every 6 hours (10 mg/kg/dose 12-hourly (maximum
(maximum 4 g/dose Piperacillin component) and seek ID advice within 400 mg/dose)
24 hours. PLUS Lincomycin IV
and seek ID advice within 24 hours.
Animal Bites with Amoxicillin/ Clavulanic acid 22.5 mg/kg/dose orally twice daily Delayed type OR immediate type
established infection (maximum 875 mg/dose Amoxycillin component). hypersensitivity,
Duration: 5 to 7 days Trimethoprim/ Sulfamethoxazole
Prophylaxis for animal bites orally 4 mg/kg/dose twice daily
is not indicated for small (maximum 160 mg/dose
wounds not involving trimethoprim component)
deeper tissues that present PLUS
within 8 hours and can be Metronidazole orally
adequately debrided and 7.5 mg/kg/dose every 8 hours
irrigated (maximum 400 mg/dose).
CONSULTATION
Key stakeholders who reviewed this version:
Term Definition
IV Intravenous
LP Lumbar puncture
REFERENCES
No. Reference
1 Antibiotic Therapeutic Guidelines (14th Edition) Therapeutic Guidelines Committee, North Melbourne, Victoria
(2021).
4 Bijleveld YA et al. Population Pharmacokinetics and Dosing Considerations for Gentamicin in Newborns with
Suspected or Proven Sepsis Caused by Gram-Negative Bacteria. Antimicrobial Agents and Chemotherapy.
2017; 61 (1): e01304-16.