Which of the following is part of the commonly cited complications of sedation?

• A. Hypoxemia, apnea, aspiration pneumonia, cardiac arrhythmias, hypotension
• B. Hypertension, tachycardia, edema, convulsions
• C. Nausea, vomiting, dizziness, fatigue
• D. Seizures, coma, fainting

Answer: (A)

Sedation carries a real risk of affecting both breathing and the heart, so the most commonly cited complications are tied to respiratory depression and cardiovascular effects. When sedation overly suppresses breathing, hypoxemia can occur from poor oxygen exchange, and apnea may follow as ventilation pauses. With diminished airway reflexes, the protective gag and coughing responses aren’t as reliable, increasing the chance of aspirating gastric contents or secretions, which can lead to aspiration pneumonia. At the same time, sedative drugs can influence the heart and blood pressure, causing arrhythmias and hypotension. Put together, these elements—breathing problems, risk of aspiration, and cardiovascular instability—form the classic set of acute sedation complications.

The other options don’t fit that standard cluster as closely: hypertension and edema aren’t typical immediate sedation problems, and convulsions are not a common mixed group with the respiratory/hemodynamic risks described. Nausea, vomiting, dizziness, and fatigue are possible but tend to be milder, more common side effects rather than the key serious complications highlighted here.