Through<unk>  and<unk>  scans, the abnormal area of lung may be localized. A provisional diagnosis of COPD, asthma or pulmonary embolisms may be made. Treatment of these underlying conditions may address<unk> . Management of the condition may vary. If<unk>  is abnormal or low, increasing the tidal volume or the rate may result in the poorly ventilated area receiving an adequate amount of air, which ultimately leads to an improved V/Q ratio. Conversely, if<unk>  scan is of low quality showing low<unk>  to lung as in case of hypovolemia, treatment of the conditions is by giving it fluid and using inotropes in case of shock.
Ventilation perfusion mismatch
Right-to-left shunt
Hypoxic pulmonary vasoconstriction
Silent hypoxia
Histotoxic hypoxia
Central neurogenic hyperventilation
Cerebral hypoxia
Pulmonary-to-systemic shunt