COPD & Ward Pharmacology

Anyone can give a drug — but it takes a nurse to know why it’s given, what the risks are, and how it interacts.

From oxygen target rules to salbutamol, ipratropium, and prednisolone — every inhaler, every nebuliser, every tablet explained simply and clearly.

Understanding COPD — More Than Just a Cough

Chronic Obstructive Pulmonary Disease isn’t one single illness. It’s the umbrella term for chronic bronchitis and emphysema — long-term, progressive damage that narrows airways, inflames linings, destroys the tiny air sacs where oxygen passes into the blood, and clogs everything with thick mucus. Patients sit hunched forward, struggling to breathe, using every muscle just to get air in and out.

It’s irreversible — but we can slow it, ease the breathlessness, and manage flare-ups. That’s where the drug chart comes in — maintenance inhalers to protect, and rescue therapies to fight infection and inflammation when it worsens.

🟡 OXYGEN TARGETS — THE MOST IMPORTANT RULE
Many COPD patients are carbon dioxide retainers. High-flow oxygen can switch off their drive to breathe. Always check the prescription — 88–92% saturations is the standard target. Never assume “more oxygen = better”.

The Three Drugs You’ll Give Every Shift

Reliever / SABA

Salbutamol — The Blue Inhaler / Nebuliser

What it does: Relaxes the muscles wrapped around the airways. Opens them up fast. Works in minutes.

What to watch for: Trembling hands, fast pulse, palpitations — all normal side effects. High repeated doses can lower potassium levels.

Ward tip: Check if they use a spacer — it gets more medicine where it needs to go. If nebulised, use oxygen at 6 L/min — enough to drive it, not enough to dangerously raise CO₂.

Anticholinergic / SAMA

Ipratropium Bromide — The Second Bronchodilator

What it does: Blocks the nerve signal that tightens airways and makes mucus. Works differently to salbutamol — together they’re stronger.

What to watch for: Dry mouth, blurred vision if mist gets in eyes — fit the mask properly. Can cause urinary retention, especially in men with prostate issues.

Anti-Inflammatory / Steroid

Prednisolone — The Acute Flare-Up Course

What it does: Powerful anti-inflammatory. Cuts the swelling in the airways during a bad infection or exacerbation. Buys time to recover.

What to watch for: Raises blood sugar — check those BM readings, especially in diabetics. Irritates the stomach — give with food. Mood changes, trouble sleeping — warn them it’s usually temporary.

Ward tip: Given in the morning — matches the body’s natural rhythm and reduces sleep disruption.

📖 Trusted Guidelines & References

Standards you can cite and share — updated and current:

✓ Checked against NICE NG115 & BNF Standards

Written by: Daniel Hancock, Registered Nurse

Focus: Respiratory care, drug safety, ward monitoring

Published: September 2026  |  Last reviewed: September 2026

For: UK student nurses — supervised learning only

⚠️ NICE NG115 is the current UK reference. Always confirm oxygen targets, nebuliser flow rates, and medication changes with the medical team — every patient is different.

Know Your Drugs — Know Your Patients

From oxygen targets to inhaler technique — understand what you’re giving, why, and what to watch for. That’s safe, confident nursing.

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