What heart condition does this tracing indicate is evolving? 
Definitions:
Grease Fittings
A small, nipple-like fitting threaded into a component for the injection of grease. A spring-loaded check ball inside the fitting allows grease in but keeps it from being pushed back out.
Zerk Fittings
Grease fittings installed on mechanical systems to allow for easy application of lubricant with a grease gun.
Control Arm Bushing
A component of the control arm in a vehicle's suspension system, made of rubber or polyurethane, designed to cushion the impact and reduce friction between the moving parts for smoother operation and handling.
Sway Bar Link
A component of a vehicle's suspension system that connects the sway bar to the suspension to help reduce body roll during turns.
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