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Management of a 65-Year-Old with Asthma Exacerbation + Type 2 Diabetes

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Step 1 — Initial Assessment (Triage & Severity Grading)

• Mild: PEFR ≥ 70% predicted, speaks in sentences
• Moderate: PEFR 40–69%, some distress
• Severe: PEFR < 40%, severe distress, SpO₂ < 90%
• Life-threatening: Silent chest, cyanosis, altered consciousness

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Step 2 — Immediate Treatment

A. Oxygen

• Deliver humidified O₂ via nasal cannula or face mask.
• Target SpO₂ 92–95% (avoid hyperoxia).

B. Short-Acting β₂-Agonist (SABA) — First-line

• Salbutamol (albuterol) via nebulizer: 2.5–5 mg every 20 minutes × 3 doses, then reassess.
• Alternatively, MDI with spacer is as effective as nebulizer (SOR: A).
• Note: SABAs can cause mild hyperglycemia — monitor blood glucose.

C. Ipratropium Bromide (Anticholinergic) — Add-on

• 0.5 mg nebulized every 20 minutes × 3 doses combined with SABA in moderate–severe exacerbations (SOR: A).
• Particularly useful in older patients who may have a component of COPD overlap.
• Stop ipratropium after acute phase; NHLBI does not recommend continued nebulized anticholinergics during hospitalization.

D. Systemic Corticosteroids — Critical

• Prednisolone 40–60 mg orally (or IV methylprednisolone if unable to swallow).
• Duration: 5–7 days (short course, no tapering needed for short courses).
• ⚠️ Key concern in your patient — diabetes:
  • Oral/systemic corticosteroids will cause significant hyperglycemia in a Type 2 diabetic.
  • Monitor blood glucose every 4–6 hours while on steroids.
  • Adjust antidiabetic therapy:
    • If on metformin → continue, but watch renal function.
    • May need short-acting insulin (sliding scale) to cover steroid-induced hyperglycemia.
    • Target glucose: 140–180 mg/dL in the inpatient setting.
  • Do not withhold steroids — they are life-saving in an exacerbation.

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Step 3 — Investigations

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Step 4 — Disposition

• Discharge if after treatment: PEFR/FEV₁ returns to > 70% of predicted or personal best AND no respiratory distress.
• Admit if: severe exacerbation, poor response to initial treatment, SpO₂ < 92% on room air, significant comorbidity burden (as in this patient).

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Step 5 — Medications to AVOID in this Patient

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Step 6 — Discharge Planning & Long-Term Management

1. Written Asthma Action Plan — guide self-management of future exacerbations.
2. Step-up controller therapy as needed (ICS ± LABA based on severity).
3. Teach inhaler technique — critical in older patients.
4. Optimize diabetes control — counsel that repeated steroid courses will worsen glycemic control long-term; consider this when planning asthma controller therapy (use inhaled corticosteroids to reduce the need for systemic steroids).
5. Influenza + pneumococcal vaccination — especially important given age and asthma.
6. Peak flow diary and follow-up within 1–2 weeks.

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Quick Summary Card

ACUTE:  O₂ → Nebulized Salbutamol + Ipratropium → Systemic Corticosteroids
MONITOR: SpO₂, PEFR, Blood Glucose (q4–6h on steroids)
GLUCOSE: Sliding scale insulin if BG > 180 mg/dL on steroids
DISCHARGE: PEFR > 70% + no distress + glucose controlled
FOLLOW-UP: 1–2 weeks, step-up ICS, written action plan

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