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When IV access is delayed, glucagon IM is indicated to mobilize hepatic glycogen and raise serum glucose. Oral glucose is unsafe with significant AMS (aspiration risk). Repeated sticks delay care; naloxone treats opioid toxicity, not hypoglycemia.

Naloxone displaces opioids at receptor sites, reversing respiratory depression. Morphine is an opioid agonist. Diazepam is a benzodiazepine. Nitroglycerin is a vasodilator. Recognizing antagonists ensures safe use in overdose scenarios.

“Poly-” means many, as in polyuria (excess urination), polydipsia (excess thirst), and polyphagia (excess eating). These are classic signs of diabetes mellitus. Prefixes provide quick interpretation of medical history and patient symptoms.

Tension pneumothorax causes absent unilateral breath sounds, hypotension, and JVD. Simple pneumothorax lacks shock. Hemothorax causes dullness. Flail chest shows paradoxical movement. Immediate needle decompression may be required.

Albuterol stimulates beta-2 receptors, relaxing bronchial smooth muscle and relieving bronchospasm in asthma/COPD. Atropine is an anticholinergic. Epinephrine has mixed alpha/beta effects. Morphine is an opioid analgesic. Correct identification of albuterol’s mechanism ensures safe administration and monitoring for tachycardia or jitteriness.