In case of pulmonary edema the lymphatic available in the lungs are unable to drain excess fluids and this leads to accumulation of fluid in the interstitial region and is known as interstitial pulmonary edema. This result is pulmonary edema that needs immediate medical attention. There may be various factors that lead to interstitial pulmonary edema.
When the pressure inside the interstitial spaces rise the fluid may fill the junctions between the alveoli and the fluid fills the alveolar spaces leading to acute interstitial pulmonary edema. In this condition the patient will be showing g signs of suffocation. He may not be able to breathe while lying down and his breathing will be labored. This is a potentially dangerous situation and it needs immediate medical attention.
In other words, interstitial pulmonary edema may be described as an exaggeration of the filtration process in lungs. This is the first sign of pulmonary edema, however when the condition is not diagnosed it can lead to serious complications. Interstitial pulmonary edema may be caused due to cardiogenic factors as well as non cardiogenic factors. The medical practitioner may prescribe diuretic medicines in order to reduce edema in lungs. However in severe case the patient will need artificial supply of oxygen if order to avoid complications.