Lesson

Albuterol & Bronchodilators

10 min Meds & Pharma

Objective: Use albuterol as a lower-airway drug — wheeze and air trapping, not stridor — and know it also shifts potassium.

Why This Matters

Albuterol is the most-given EMS respiratory drug and one of the easiest to aim at the wrong tube. It relaxes bronchial smooth muscle (beta-2). That helps asthma and many COPD flares. It does not stent a swollen upper airway. GINA and NAEPP-style asthma teaching still wants bronchodilators early in bronchospasm — alongside oxygen and, when they are really sick, the rest of your protocol (ipratropium, steroids, mag, CPAP/NIV, epinephrine themes).

Say out loud
  • Wheeze / prolonged exhalation / silent chest — lower airway
  • Stridor — upper airway; albuterol is not the first tool
  • Silent chest is worse than loud wheeze
  • HyperK protocols may use albuterol as a shift agent — different goal

When It Fits (Education)

  • Asthma and COPD bronchospasm: work of breathing, wheeze, prolonged expiratory phase. Pair with ventilation discipline if you have to bag.
  • Many systems allow continuous nebulization in severe distress. Protocol owns concentration, volume, and whether ipratropium is added (Duoneb-style).
  • Hyperkalemia: nebulized albuterol shifts K+ intracellularly. That is a different indication — see hyperK ECG. Do not skip calcium when the QRS is a sine wave.

When It Does Not

  • Stridor, epiglottitis, anaphylaxis upper-airway swelling — those need epinephrine and an airway plan, not a neb as the hero (anaphylaxis still gets IM epi first: anaphylaxis).
  • CHF “cardiac asthma”: some patients wheeze because they are wet. Albuterol is not the CHF primary path (sit up, CPAP). A trial neb is a protocol call, not a reason to skip the 12-lead.
  • This site does not publish milligrams. Read the vial and the protocol line every time.

Safety

  • Tachycardia and tremor are expected. That does not mean “never give it to a tachycardic asthmatic.”
  • Watch for hypokalemia and demand ischemia in fragile hearts — still treat the bronchospasm that is killing them.
  • MDI plus spacer is acceptable in many systems when the patient can coordinate; neb when they cannot.

Field Pitfalls

  • Nebbing stridor and calling it a win.
  • Stopping the neb to “get a better history” while they are still drowning in bronchospasm.

Practice

60-second drill

Partner: (1) 20-year-old silent chest; (2) toddler with barky stridor; (3) missed-dialysis wide QRS. Albuterol yes/no and why — one sentence each.

Related: Asthma & COPD Ventilation, CPAP, Magnesium.

Sources & Further Study

Named guidelines for further study. They are not clinical orders and do not replace your protocol or medical direction.

Education only. Apply learning within your protocols and medical direction. This is not clinical care guidance.

Check Your Understanding

Street decisions from this lesson only. After you check, the key is highlighted. Education practice — not a certification exam.

1. Albuterol is aimed at:
2. A silent chest in severe asthma is:
3. Barky stridor in a toddler:
4. Albuterol in hyperkalemia: