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BT acronym.Bacterial Tracheitis concept.BT (Bacterial Tracheitis) is a bacterial infection of the trachea causing airway obstruction.
Temporary warning road sign used in Ireland - Obstruction Between Lanes.
Defocused of Cpap machine is treating senior patient woman wearing Cpap mask sleeping smoothly without snoring in hospital room. Obstructive sleep apnea therapy,blurred for background.
Blood clots (fibrin clots) are usually formed to stop the bleeding during injury, Blood clots can be dangerouse when they obstruct blood flow and cause thrombosis, 3d illustration
Trunk of a mature tree is seen sticking out into road as car navigates around tight gap in the aftermath of stormy weather in rural Quebec, Canada.

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