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.
Shock can be caused by any condition that reduces blood flow, including: 1  Heart problems (such as heart attack or heart failure) 2  Low blood volume (as with heavy bleeding or dehydration)  Changes in blood vessels (as with infection or severe allergic reactions)