When a Chemical Stress Test Is Performed Using Persantine, Adenosine

question 44

Multiple Choice

When a chemical stress test is performed using Persantine, adenosine, or a similar chemical, how does the chemical affect the patient?

• A)It stimulates the patient so he or she can exercise longer.
• B)It changes the heart's rhythm from atrial fibrillation to normal sinus rhythm.
• C)It relaxes the heart.
• D)It mimics the stresses placed on the heart during exercise.

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Definitions:

Colour And Timbre

Attributes of sound and light; color refers to the visual property determined by wavelength, and timbre to the quality of a sound that distinguishes different types of sound production.

Frequency And Wavelength

Characteristics of waves, where frequency is the number of cycles per second, and wavelength is the distance between consecutive peaks of a wave.

Relative Size

A perceptual cue which allows the determination of the depth of an object when comparing its size to that of another object of known size.

Texture Gradient

A visual cue in perception that refers to the gradual change in the appearance of objects as they recede into the distance, indicating depth.