Which Nursing Intervention Reduces Myocardial Oxygen Demand

question 24

Multiple Choice

Which nursing intervention reduces myocardial oxygen demand?

• A) Supplying a portable oxygen unit during activity
• B) Encouraging participation in cardiac rehabilitation program
• C) Elevating the head of the bed 30 to 45 degrees
• D) Positioning patient in supine position

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Definitions:

Light-sensitive

Having a sensitivity to light, often used to describe cells, materials, or devices that respond or react to light, such as photoreceptor cells in the eye or photographic film.

Retina

The light-sensitive layer at the back of the eye that converts light into neural signals.

Rods and Cones

Photoreceptor cells in the retina responsible for vision in low light (rods) and color vision and detail (cones).

Bipolar Cells

Bipolar cells are a type of retinal neuron that transmit signals from the photoreceptors (cones and rods) to ganglion cells, which then transmit visual information to the brain.