Which characteristic is associated with cerumen impaction?
A callus that forms on an ossicle
Inflammation of the innermost part of the ear
Blockage of the ear canal due to built-up ear wax
Accumulation of skin cells behind the tympanic membrane or within the mastoid bone
The Correct Answer is C
A. A callus that forms on an ossicle:
No callus forms on the ossicles with cerumen impaction. Ossicle problems (like otosclerosis) involve bone remodeling, not wax.
B. Inflammation of the innermost part of the ear:
This describes labyrinthitis or inner ear infections, not cerumen impaction.
C. Blockage of the ear canal due to built-up ear wax:
Cerumen impaction is the accumulation of earwax blocking the external ear canal, leading to symptoms like hearing loss or fullness.
D. Accumulation of skin cells behind the tympanic membrane or within the mastoid bone:
This describes a cholesteatoma, not cerumen impaction.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Bladder cancer:
Bladder cancer is treated through surgery, chemotherapy, or radiation, but not by "chemical castration."
B. Testicular cancer:
While testicular cancer may involve treatments that affect hormones, chemical castration is typically not a treatment for testicular cancer.
C. Prostatic cancer:
Prostatic cancer (prostate cancer) is often treated with chemical castration (using medications such as LHRH agonists or anti-androgens) to reduce testosterone levels and slow tumor growth.
D. Urethral cancer:
Urethral cancer is rare and treated with surgery or chemotherapy, not chemical castration.
Correct Answer is A
Explanation
A. An intervening sequence that does not encode for proteins:
Introns are non-coding sequences within a gene that are removed during RNA splicing before translation.
B. The portion of the transcript that encodes for protein:
This describes an exon, not an intron.
C. A person with a recessive allele that the dominant allele silences:
This describes a carrier in genetics, not an intron.
D. One of a pair of genes that is inherited from a parent:
This describes an allele, not an intron.
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