Concealed definition, to hide; withdraw or remove from observation; cover or keep from sight: He concealed the gun under his coat. See more.
Obstructive Shock: Causes, Signs and Symptoms, & First Aid Management. Obstructive shock is a medical emergency that occurs due to mechanical problems that averts diastolic filling resulting to decreased cardiac output. Obstructive shock is a medical emergency that occurs to mechanical problems that avoids diastolic filling from occurring.
Causes of non-obstructive atelectasis: 1  Trauma: Pain resulting from injury to the chest area can make it difficult to inhale and cough.  Pleural effusion: Accumulation of fluid in the space outside the lungs but inside the chest cavity (pleural space) can press on the airways, causing collapse.