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Obstruction

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Read Also:

• Obstruction, airway

  Partial or complete blockage of the breathing passages to the lungs. Causes include the presence of foreign matter, allergic reactions, infections, anatomical abnormalities, and trauma. Associated respiratory distress may be sudden, with only a cough for a warning. There is often agitation in the early stages. Other signs include labored, ineffective breathing, until the person […]

• Obstructive sleep apnea

  See sleep apnea, obstructive.

• Obtund

  To dull or blunt. From the Latin obtundere, to blunt. Often used in reference to diminished consciousness, obtunded.

• Obtunded

  Mentally dulled. Head trauma may obtund a person.

• Obverse

  The opposite, the opposite side, the counterpart. For example, mania is thought of as the obverse of depression just as heads is the obverse of tails on a coin.

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