A 77-Year-Old Patient Is Being Treated for Cardiac Arrhythmia

question 10

Multiple Choice

A 77-year-old patient is being treated for cardiac arrhythmia.The nurse determines that the patient's cardiac output is adequate with which assessments? (Select all that apply. )

• A)Urine output of 140 cc over 4 hours
• B)Systolic blood pressure that remains within 20 mm of baseline
• C)Denial of substernal pain
• D)Recollection of the birthdays of all of her grandchildren
• E)Absence of rales and crackles

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Definitions:

Foveas

The small depression in the retina of the eye where visual acuity is highest, containing a high concentration of cones, responsible for sharp central vision.

Rods

Photoreceptor cells in the retina responsible for vision in low light conditions.

Young-Helmholtz Theory

A theory suggesting that the human eye perceives color through the response rates of three kinds of cones, each sensitive to red, green, or blue wavelengths.

Color Vision

The ability of the visual system to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit.