A 60-Year-Old Man Experienced an Ischemia-Induced Myocardial Infarction and Died

question 4

Multiple Choice

A 60-year-old man experienced an ischemia-induced myocardial infarction and died from ventricular fibrillation. What factor was most likely to increase the tendency of the heart to fibrillate after the infarction?

• A)Low potassium concentration in the heart extracellular fluid
• B)A decrease in ventricular diameter
• C)Increased sympathetic stimulation of the heart
• D)Low adenosine concentration
• E)Decreased parasympathetic stimulation of the heart

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Definitions:

Optic Disk

The point in the eye where the optic nerve connects to the retina, also known as the blind spot.

Retina

A thin layer of tissue located on the inside back wall of the eye, containing cells that are sensitive to light and trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Lens

A part of the eye that focuses light onto the retina, enabling vision.

Light

A form of electromagnetic radiation visible to the human eye, critical for sight and involved in various biological processes.