After receiving back-to-back albuterol nebulizers for status… | MyMerci
Medical Emergencies PA
Question

After receiving back-to-back albuterol nebulizers for status asthmaticus, a client now has HR 145, fine tremor, and serum K+ of 2.9 mEq/L. Which is the priority nursing action?

Explanation
Correct (2): High-dose beta-2 agonists shift potassium intracellularly, causing hypokalemia with risk of arrhythmias (especially with concurrent diuretics or digoxin). Notify provider, anticipate IV potassium replacement, continuous ECG. Tachycardia and tremor are expected with high-dose beta-2 stimulation. (1) More albuterol worsens hypokalemia. (3) Oral tablets have systemic side effects without faster benefit. (4) Asthma control still required; just adjust dose.

In-depth explanation

Memory Tip Beta-2 agonist overdose = "Tachy + Tremor + Low K." Beta-2 also causes mild HYPERglycemia (insulin and glucose shift). CPG Monitor K+ every 2-4h during continuous nebulizer therapy.

Clinical scenario

Scenario 32-year-old male in status asthmaticus receiving back-to-back albuterol nebulizers × 3. Now HR 145, fine tremor, serum K+ 2.9 mEq/L, on continuous cardiac monitor.

Key concepts

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