A 60-Year-Old Woman Is Brought to the Hospital Due to Progressive

question 129

Multiple Choice

A 60-year-old woman is brought to the hospital due to progressive shortness of breath and cough for 2 weeks.  The patient was diagnosed with right breast cancer and completed radiation therapy 6 weeks ago.  Temperature is 37.3 C (99.1 F) , blood pressure is 110/70 mm Hg, pulse is 90/min, and respirations are 22/min.  Oxygen saturation is 93% on room air.  Examination reveals inspiratory crackles over the right lung anteriorly; the lungs are otherwise clear to auscultation.  Chest radiograph shows ground-glass opacities in the right lung where radiation was delivered.  Laboratory studies reveal no significant changes.  Acute radiation-induced lung injury is suspected.  Histopathologic examination would most likely reveal formation of which of the following?

• A)Alveolar hyaline membranes
• B)Hemosiderin-laden macrophages
• C)Necrotizing vasculitis
• D)Neutrophilic abscess

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Definitions:

Audition

The sense of hearing; the perception of sound by the ear.

Loudness of Sounds

The loudness of sounds is a subjective measure of sound intensity perceived by the human ear, which depends on the amplitude of sound waves and is measured in decibels.

Hair Cell Responses

The activation of hair cells in the inner ear, which play a crucial role in converting sound vibrations into electrical signals for the brain to interpret.

Activated Hair Cells

Sensory cells located in the inner ear that convert mechanical vibrations from sound waves into electrical signals to be sent to the brain.