What type of hearing loss is due to an abnormal formation of the external or middle ear?

In which class of the Vaughn-Williams classification system of antidysrhythmic medications does quinidine belong?

A) IA B) IB C) IC D) II

Any space with limited access and egress that is not designed for human occupancy best describes which of the following?

A) A low-head dam B) A strainer C) A spoil pile D) A confined space