A Modified CRM Is Performed on a Patient with a Left

question 8

Multiple Choice

A modified CRM is performed on a patient with a left posterior vertical canal impairment.Upon sitting up at the end of the maneuver the therapist notices rotary transient nystagmus in the opposite direction from the original nystagmus.What could be an explanation for this phenomenon?

• A)Contralateral canal stimulation
• B)Decreased patient ability to fixate to inhibit eye movements
• C)Cervico-ocular reflex responses to the maneuver
• D)Some of the otoconia may have fallen back into the canal

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Definitions:

Diseconomies of Scale

The phenomenon where an increase in production leads to higher costs per unit due to inefficiencies that arise from scaling up operations.

Increasing Returns

An increase in a firm’s output by a larger percentage than the percentage increase in its inputs.

Diminishing Returns

A principle stating that after a certain point, additional investment or effort yields progressively smaller increases in output.

Marginal-cost Curve

The marginal-cost curve represents how the cost of producing one additional unit of a good changes as its production volume varies.