What is the Effect of an Overdose of an Opioid

Question

What is the effect of an overdose of an opioid (narcotic)?
A) Alters the shape of the hemoglobin so that it cannot bind to oxygen
B) Depresses the medulla oblongata and depresses ventilation
C) Causes spasm of the epiglottis resulting in an upper airway obstruction
D) Causes hyperventilation and alkalosis

Accepted Answer

Opioids, such as morphine, bind to opioid receptors in the brain and spinal cord resulting in a decrease in respiratory drive. An overdose of an opioid can cause respiratory depression, leading to a decrease in oxygenation and potentially fatal outcomes.