Respiratory Tract Infections

Diagnostic Confirmation

Bacterial Upper Respiratory Tract Infections (URTI) require specific diagnostic confirmation before antibiotic treatment, with a Rapid antigen test (RAT) or throat culture necessary to confirm Group A Streptococcus (GAS) for streptococcal pharyngitis, as recommended by the American Academy of Pediatrics and the Infectious Diseases Society of America 1
Antibiotic treatment should only be given for confirmed GAS pharyngitis, according to the Infectious Diseases Society of America 1
Prompt treatment initiation after confirmation is recommended by the American Academy of Pediatrics and the Infectious Diseases Society of America 1

Not confirming bacterial etiology, especially for GAS pharyngitis, can lead to unnecessary antibiotic use, according to the Infectious Diseases Society of America 1
Judicious antibiotic use is recommended to minimize the impact of antibiotic resistance, considering local resistance patterns and patient factors, as advised by the American Academy of Pediatrics and other guideline societies 1, 2, 3

Amoxicillin or amoxicillin-clavulanate is recommended as the first-line antibiotic for most bacterial URTIs, with a standard dose of 45 mg/kg/day divided twice daily for pediatrics and 875 mg twice daily for adults, as recommended by the American Academy of Pediatrics and other guideline societies 2, 4, 3
Doxycycline is recommended as an alternative in patients where macrolides are ineffective or not tolerated, according to the British Thoracic Society guideline 5
The European Respiratory Society recommends amoxicillin or tetracyclines as the first choice for treatment, with co-amoxiclav, macrolides, levofloxacin, or moxifloxacin as alternative or second choices 6
Azithromycin is not recommended as first-line therapy due to inadequate coverage for common URTI pathogens, as advised by the American Academy of Pediatrics 3
Antibiotic selection should consider local resistance patterns, patient factors, and recent antibiotic use within 4-6 weeks, which is a risk factor for resistant organisms 7

Patients with certain risk factors, including age younger than 2 years, daycare attendance, recent antibiotic use, and immunocompromised status, may require special consideration when selecting an antibiotic, with broader coverage for immunocompromised patients and higher risk for resistant pathogens in children attending daycare 8, 7
Uncontrolled diabetes increases the risk of infections by S. aureus and gram-negative bacteria, and infections by S. pneumoniae, Legionella, and influenza can be associated with higher morbidity and mortality in diabetic patients 1
The Anthonisen criteria (increased dyspnea, increased sputum volume, increased sputum purulence) can be used to assess exacerbation severity, as recommended by the Clinical Microbiology and Infection society 1

Treatment should last for 5-7 days for uncomplicated cases, with reassessment after 3-5 days of treatment, and consideration of changing antibiotics or referral if not improving or worsening, as recommended by the American Academy of Pediatrics and other guideline societies 2
Clinical improvement should be expected within 48-72 hours of starting therapy, and if no improvement or worsening after 72 hours, consider switching to alternate antimicrobial therapy or reevaluating the patient, as advised by the American Academy of Pediatrics and other guideline societies 7, 3

Intranasal corticosteroids may help alleviate symptoms, and maintaining or intensifying inhaled corticosteroid (ICS) therapy is the preferred treatment for persistent asthma, as recommended by the American Academy of Pediatrics and other guideline societies 4, 9
Treatment of concurrent allergic rhinitis can improve asthma control, and viral URIs can trigger asthma symptoms through increased airway inflammation, as advised by the American Academy of Pediatrics and other guideline societies 10, 9
Hand hygiene and infection control measures can reduce transmission, particularly in children under 24 months, and educating patients on expected duration of symptoms (typically 7-10 days) and when to seek further care, as recommended by the American Academy of Family Physicians 1

Antibiotics should not be used for common cold, viral rhinosinusitis, acute bronchitis, laryngitis, COVID-19, and influenza, as prescribing antibiotics for these conditions exposes patients to potential harm without providing benefit, as advised by the American Academy of Pediatrics and other guideline societies 3
Emphasize the importance of completing the full antibiotic course when prescribed, and inform patients about the risks of antibiotic resistance and the importance of only using antibiotics when there is strong evidence of bacterial infection, as recommended by the Infectious Diseases Society of America 1