Using a Big-Valve Mask (BVM) Can Be a Difficult Skill

question 38

Multiple Choice

Using a big-valve mask (BVM) can be a difficult skill to master. To obtain a good seal, which of the following should be done?

• A) The right hand, using the thumb and index finger, should be used to form a C on the mask.
• B) The small, ring, and third fingers should be placed along the jaw to help pull the jaw and nose into the mask.
• C) The bag should be squeezed with the right hand.
• D) A & B
• E) B & C

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Definitions:

Diseconomies Of Scale

The situation when a firm's costs per unit increase as it produces more output, opposite of economies of scale.

ATC Curve

A graphical representation of the average total costs of production at different levels of output in economics.

AVC Curve

The average variable cost curve, which shows a firm's average variable costs of production at different levels of output.

Parkinson's Law

The adage that "work expands to fill the time available for its completion," suggesting efficiency decreases as the amount of time allocated to a task increases.