A nurse is teaching a group of clients about the specific types of fluids that protect the structures of the inner ear. Which of the following statements should the nurse include in the teaching?
"Endolymph fluid provides protection to the structures of the inner ear."
"Aqueous humor provides protection to the structures of the inner ear."
"Vitreous humor provides protection to the structures of the inner ear."
"Sanguineous fluid provides protection to the structures of the inner ear."
The Correct Answer is A
A. "Endolymph fluid provides protection to the structures of the inner ear": Endolymph is a fluid found within the membranous labyrinth of the inner ear. It plays a crucial role in maintaining the balance of ions necessary for proper sensory function of the auditory and vestibular systems. Endolymph helps protect the delicate sensory structures of the inner ear, including the hair cells responsible for hearing and balance.
B. "Aqueous humor provides protection to the structures of the inner ear": Aqueous humor is a clear fluid that fills the anterior chamber of the eye, maintaining intraocular pressure and nourishing the cornea and lens. It is not involved in protecting the structures of the inner ear.
C. "Vitreous humor provides protection to the structures of the inner ear": Vitreous humor is a gel-like substance that fills the posterior chamber of the eye, providing structural support to the eyeball and maintaining its shape. It is not associated with protecting the structures of the inner ear.
D. "Sanguineous fluid provides protection to the structures of the inner ear": Sanguineous fluid refers to blood or a blood-like fluid, which does not directly provide protection to the structures of the inner ear. While the circulatory system supplies oxygen and nutrients to the inner ear structures, blood itself does not serve as a protective fluid within the inner ear.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "Medications for Alzheimer's disease will help to increase my energy levels": This statement is not accurate. Medications for Alzheimer's disease, such as cholinesterase inhibitors (e.g., donepezil, rivastigmine) and memantine, are not intended to increase energy levels. Their primary goal is to improve cognitive function and help manage symptoms associated with Alzheimer's disease, but they do not directly affect energy levels.
B. "Medications for Alzheimer's disease will help slow the progression of my disease": This statement is correct. Medications used to treat Alzheimer's disease, such as cholinesterase inhibitors and memantine, are aimed at slowing the progression of cognitive decline and managing symptoms associated with the disease. While these medications cannot cure Alzheimer's disease, they can help improve cognitive function and quality of life for some individuals.
C. "Medications for Alzheimer's disease will help me remember what I forgot": This statement oversimplifies the effects of Alzheimer's medications. While these medications may help improve memory and cognition to some extent, they are not capable of restoring lost memories or reversing the effects of significant memory impairment caused by Alzheimer's disease.
D. "Medications for Alzheimer's disease will cure the disease": This statement is incorrect. Currently, there is no cure for Alzheimer's disease. Medications used to treat Alzheimer's, such as cholinesterase inhibitors and memantine, can help manage symptoms and slow disease progression, but they do not cure the underlying condition.
Correct Answer is A
Explanation
A. A decrease in systolic blood pressure greater than 10 mm Hg during inspiration: Pulsus paradoxus is an exaggerated decrease in systolic blood pressure during inspiration. Normally, there is a slight decrease in systolic blood pressure during inspiration due to increased intrathoracic pressure and decreased venous return to the heart. However, in conditions such as cardiac tamponade or severe asthma exacerbations, the decrease in systolic blood pressure during inspiration is more pronounced (>10 mm Hg), indicating impaired cardiac output and decreased left ventricular filling during inspiration.
B. A decrease in heart rate greater than 10/min when lying down: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when lying down.
C. An increase in diastolic blood pressure greater than 10 mm Hg during inspiration: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus is characterized by an exaggerated decrease in systolic blood pressure during inspiration, not changes in diastolic blood pressure.
D. An increase in heart rate greater than 20/min when standing: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when standing.
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