A Researcher Wishes to Study the Effects of Preoperative Teaching

question 6

Multiple Choice

A researcher wishes to study the effects of preoperative teaching on anxiety levels among toddlers and preschoolers undergoing surgery.To reduce the potential for measurement error,the researcher will

• A) ask study subjects to describe feelings of anxiety.
• B) develop a new tool to measure anxiety levels in children.
• C) rely on multiple observers to collect data for this study.
• D) use a standardized checklist of anxiety behaviors.

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Definitions:

Left Atrium

One of the four chambers of the heart, receiving oxygenated blood from the lungs and pumping it to the left ventricle.

Capillary Bed

A network of capillaries, small blood vessels, where exchange of oxygen, nutrients, and waste occurs between blood and tissues.

Diffusion

The movement of particles from an area of higher concentration to an area of lower concentration, driven by the kinetic energy of the particles, leading to an eventual equilibrium.

Nutrients

Substances obtained from food that are essential for the maintenance of normal body functions, growth, and energy production.