Special Senses When emergency personnel arrived on the scene of the bus crash, they found Brian Rhen, 42, sitting on the side of the road holding his head in his hands. He complained of a severe headache and nausea, 1. The ear is divided into three major areas (compartments). What are these three areas, and which of these areas is involved in Mr. Rhen's BPPV? and was evaluated and treated for a concussion. Several days later, Mr. Rhen began to experience recurring episodes of vertigo and was referred to a neurologist. (Vertigo is a sensation of motion or movement while the person is stationary, and can be accompanied by nausea and vomiting.) Mr. Rhen was diagnosed with benign paroxysmal positional vertigo (BPPV). With this condition, which can be caused by head trauma, vertigo can be provoked by specific changes in head position. Mr. Rhen reported that his vertigo usually occurred when rolling over in bed, or when turning his head from side to side while sitting up, and that these movements provoked the sensation of a spinning room, which led to nausea. The neurologist confirmed the diagnosis of BPPV by using a test called the Dix-Hallpike maneuver. During this test, the neurologist looks for nystagmus (involuntary, jerking eye movements) as he makes specific rotational changes to Mr. Rhen's head position. 2. What are the three main sources of sensory input that the body uses in order to control balance and equilibrium? 3. Name the two functional divisions of the vestibular apparatus. Identify the sensory receptor associated with each division, and state which aspect of equilibrium each receptor senses. 4. BPPV can be caused by otoliths that have been dislodged from the otolithic membrane of the maculae. Based on Mr. Rhen's symptoms and the head movements that provoke these symptoms, what part of the vestibular apparatus are the displaced otoliths now affecting? 5. Explain why nystagmus is associated with the Dix-Hallpike maneuver. For answers, see Answers Appendix.
Special Senses When emergency personnel arrived on the scene of the bus crash, they found Brian Rhen, 42, sitting on the side of the road holding his head in his hands. He complained of a severe headache and nausea, 1. The ear is divided into three major areas (compartments). What are these three areas, and which of these areas is involved in Mr. Rhen's BPPV? and was evaluated and treated for a concussion. Several days later, Mr. Rhen began to experience recurring episodes of vertigo and was referred to a neurologist. (Vertigo is a sensation of motion or movement while the person is stationary, and can be accompanied by nausea and vomiting.) Mr. Rhen was diagnosed with benign paroxysmal positional vertigo (BPPV). With this condition, which can be caused by head trauma, vertigo can be provoked by specific changes in head position. Mr. Rhen reported that his vertigo usually occurred when rolling over in bed, or when turning his head from side to side while sitting up, and that these movements provoked the sensation of a spinning room, which led to nausea. The neurologist confirmed the diagnosis of BPPV by using a test called the Dix-Hallpike maneuver. During this test, the neurologist looks for nystagmus (involuntary, jerking eye movements) as he makes specific rotational changes to Mr. Rhen's head position. 2. What are the three main sources of sensory input that the body uses in order to control balance and equilibrium? 3. Name the two functional divisions of the vestibular apparatus. Identify the sensory receptor associated with each division, and state which aspect of equilibrium each receptor senses. 4. BPPV can be caused by otoliths that have been dislodged from the otolithic membrane of the maculae. Based on Mr. Rhen's symptoms and the head movements that provoke these symptoms, what part of the vestibular apparatus are the displaced otoliths now affecting? 5. Explain why nystagmus is associated with the Dix-Hallpike maneuver. For answers, see Answers Appendix.
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
Problem 1SRQ
Related questions
Question
Transcribed Image Text:Special Senses
When emergency personnel arrived on the scene of the bus crash,
they found Brian Rhen, 42, sitting on the side of the road holding his
head in his hands. He complained of a severe headache and nausea,
Transcribed Image Text:1. The ear is divided into three major areas (compartments). What are
these three areas, and which of these areas is involved in Mr. Rhen's
BPPV?
and was evaluated and treated for a concussion. Several days later,
Mr. Rhen began to experience recurring episodes of vertigo and
was referred to a neurologist. (Vertigo is a sensation of motion or
movement while the person is stationary, and can be accompanied by
nausea and vomiting.)
Mr. Rhen was diagnosed with benign paroxysmal positional
vertigo (BPPV). With this condition, which can be caused by head
trauma, vertigo can be provoked by specific changes in head position.
Mr. Rhen reported that his vertigo usually occurred when rolling over
in bed, or when turning his head from side to side while sitting up,
and that these movements provoked the sensation of a spinning
room, which led to nausea. The neurologist confirmed the diagnosis
of BPPV by using a test called the Dix-Hallpike maneuver. During this
test, the neurologist looks for nystagmus (involuntary, jerking eye
movements) as he makes specific rotational changes to Mr. Rhen's
head position.
2. What are the three main sources of sensory input that the body uses in
order to control balance and equilibrium?
3. Name the two functional divisions of the vestibular apparatus. Identify the
sensory receptor associated with each division, and state which aspect of
equilibrium each receptor senses.
4. BPPV can be caused by otoliths that have been dislodged from the
otolithic membrane of the maculae. Based on Mr. Rhen's symptoms
and the head movements that provoke these symptoms, what part of
the vestibular apparatus are the displaced otoliths now affecting?
5. Explain why nystagmus is associated with the Dix-Hallpike maneuver.
For answers, see Answers Appendix.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
Phlebotomy Essentials
Nursing
ISBN:
9781451194524
Author:
Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:
JONES+BARTLETT PUBLISHERS, INC.
Gould's Pathophysiology for the Health Profession…
Nursing
ISBN:
9780323414425
Author:
Robert J Hubert BS
Publisher:
Saunders
Fundamentals Of Nursing
Nursing
ISBN:
9781496362179
Author:
Taylor, Carol (carol R.), LYNN, Pamela (pamela Barbara), Bartlett, Jennifer L.
Publisher:
Wolters Kluwer,
Phlebotomy Essentials
Nursing
ISBN:
9781451194524
Author:
Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:
JONES+BARTLETT PUBLISHERS, INC.
Gould's Pathophysiology for the Health Profession…
Nursing
ISBN:
9780323414425
Author:
Robert J Hubert BS
Publisher:
Saunders
Fundamentals Of Nursing
Nursing
ISBN:
9781496362179
Author:
Taylor, Carol (carol R.), LYNN, Pamela (pamela Barbara), Bartlett, Jennifer L.
Publisher:
Wolters Kluwer,
Fundamentals of Nursing, 9e
Nursing
ISBN:
9780323327404
Author:
Patricia A. Potter RN MSN PhD FAAN, Anne Griffin Perry RN EdD FAAN, Patricia Stockert RN BSN MS PhD, Amy Hall RN BSN MS PhD CNE
Publisher:
Elsevier Science
Study Guide for Gould's Pathophysiology for the H…
Nursing
ISBN:
9780323414142
Author:
Hubert BS, Robert J; VanMeter PhD, Karin C.
Publisher:
Saunders
Issues and Ethics in the Helping Professions (Min…
Nursing
ISBN:
9781337406291
Author:
Gerald Corey, Marianne Schneider Corey, Cindy Corey
Publisher:
Cengage Learning