What are the most common urgent care diagnoses and their recommended treatments?

Most Common Urgent Care Diagnoses and Treatments

The most common urgent care diagnoses in adults include upper respiratory infections (influenza, bronchitis), community-acquired pneumonia, and acute abdominal conditions, while pediatric presentations are dominated by otitis media, upper respiratory illness, strep pharyngitis, and bronchiolitis 1.

Adult Respiratory Conditions

Influenza and Influenza-Like Illness

For uncomplicated influenza, antivirals should be initiated within 48 hours of symptom onset in patients with fever >38°C and acute influenza-like illness 2.

• Treatment regimen: Oseltamivir 75 mg every 12 hours for 5 days (reduce to 75 mg once daily if creatinine clearance <30 mL/min) 2
• Immunocompromised or very elderly patients may receive antivirals despite lack of documented fever 2
• Previously well adults with acute bronchitis complicating influenza do not routinely require antibiotics in the absence of pneumonia 2

Antibiotics are indicated when:

• Worsening symptoms develop (recrudescent fever or increasing dyspnea) 2
• Patients are at high risk of complications with lower respiratory features 2

Community-Acquired Pneumonia

For non-severe influenza-related or community-acquired pneumonia managed in urgent care, oral antibiotics covering S. pneumoniae, H. influenzae, M. catarrhalis, and S. aureus are required 3.

Preferred oral regimens:

• Doxycycline 200 mg loading dose, then 100 mg once daily, OR
• Co-amoxiclav 625 mg three times daily 3

Alternative (for penicillin allergy):

• Clarithromycin 500 mg twice daily or erythromycin 500 mg four times daily 3

Duration: 7 days for most cases 2

Hospital Referral Criteria (CRB-65 Score)

Urgent hospital referral is required for CRB-65 score ≥3 or bilateral chest signs of pneumonia 3.

Score 1 point for each:

• Confusion (new disorientation)

• Respiratory rate >30/min

• Blood pressure (systolic <90 or diastolic <60 mmHg)

• Age ≥65 years

• Score 0: Home treatment appropriate

• Score 1-2: Consider hospital referral (especially score 2)

• Score 3-4: Urgent hospital admission 3

Pediatric Conditions

Most Common Diagnoses in Urgent Care

Based on actual urgent care utilization data 1:

1. Otitis media (72% of centers report)
2. Upper respiratory illness (69%)
3. Strep pharyngitis (61%)
4. Bronchiolitis (30%)
5. Extremity sprain/strain (28%)

Pediatric Influenza Management

Children with high fever (>38.5°C) and cough or influenza-like symptoms should receive oseltamivir if >1 year old, plus antipyretics and fluids 2.

Antibiotics are indicated for children with:

• High-risk conditions (chronic comorbidities)
• Breathing difficulties
• Severe earache
• Vomiting >24 hours
• Drowsiness 2

Antibiotic choice for children:

• Under 12 years: Co-amoxiclav (first-line)
• Penicillin allergy: Clarithromycin or cefuroxime
• Over 12 years: Doxycycline is an alternative 3

Pediatric Hospital Referral Criteria

Immediate hospital referral required for 2:

• Signs of respiratory distress (markedly raised respiratory rate, grunting, intercostal recession)
• Cyanosis
• Severe dehydration
• Altered consciousness
• Complicated or prolonged seizure
• Signs of septicemia (extreme pallor, hypotension, floppy infant)

Acute Abdominal Conditions

While specific treatment guidelines for acute abdomen weren't provided in the evidence, research indicates acute appendicitis is the most common diagnosis (24.43% of cases), followed by urolithiasis (18.75%) 4. These conditions require surgical consultation, with 45% of acute abdomen cases requiring surgical intervention 4.

Critical Pitfalls to Avoid

1. Do not withhold antibiotics from high-risk patients with influenza and lower respiratory features, even without confirmed pneumonia 2
2. Do not use aspirin in children under 16 years for fever management 2
3. Bilateral chest signs indicate severe disease regardless of CRB-65 score and warrant hospital referral 3
4. 71% of urgent care centers have transported critically ill children to emergency departments in the past year, highlighting the importance of established EMS protocols 1
5. Pain management is effective in urgent care (mean pain scores decreased from 6.22 to 2.33 on VAS scale), but definitive treatment often requires specialist referral 4