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Large-scale population-based studies suggest that 15%-20% of the world's adults experience
dizziness every year.
This includes various forms of vertigo
.
Whether it occurs independently or is caused by medication use or a serious illness, addressing a patient's
dizziness and vertigo can be challenging.
Do you know the main causes and risk factors for dizziness and vertigo, as well as best practices for managing these symptoms? Come and test it
.
Yimaitong compiles and organizes, please do not reprint
without authorization.
Question one
Which is the more common cause of vertigo?
A.
Benign paroxysmal positional vertigo
B.
Meniere's disease
C.
Stroke
D.
Cholesteatoma
Swipe to see the answers
↓↓↓
↓↓↓
↓↓↓
【Answer and analysis】
Answer: A
.
About 80% of vertigo is peripheral and usually benign; Benign paroxysmal positional vertigo (BPPV) is the most common cause of
peripheral vertigo.
According to studies, the incidence of Meniere's disease is about 10 times lower than BPPV; However, it is often overdiagnosed, while BPPV is largely underdiagnosed
.
Cholesteatomas, cyst-like lesions filled with keratin fragments, are one of the less common peripheral causes of vertigo, along with otosclerosis and perilymphatic fistula
.
Typically cholesteatoma involves the mastoid and middle ear
.
About 20% of vertigo is central.
They are usually caused
by stroke.
Question two
Which of these drugs is most likely to cause dizziness or vertigo?
A.
Penicillin
B.
carbamazepine
C.
Ibuprofen
D.
Nadolol
Swipe to see the answers
↓↓↓
↓↓↓
↓↓↓
【Answer and analysis】
Answer: B
.
At least 44% of patients taking carbamazepine reported dizziness as an adverse event
.
Dizziness and vertigo were adverse events associated with some antibiotics but not
with penicillin use.
Ibuprofen and nadolol experience dizziness
in 3%-9% and about 2% of users, respectively.
Question three
Which one is a risk factor for vertigo?
A.
Male
B.
Vitamin C deficiency
C.
Cold sores and previous signs of viral illness
D.
History of osteoarthritis
Swipe to see the answers
↓↓↓
↓↓↓
↓↓↓
【Answer and analysis】
Answer: C
.
Cold sores and signs of previous viral illness may indicate vestibular neuritis
.
Vertigo is more prevalent in women than men, accounting for 3.
2% and 1.
6%
respectively.
Although idiopathic BPPV can occur in any age group, it is most common
in people aged 50-70 years.
Deficiencies in vitamins B, D, and iron are often associated with
dizziness and vertigo.
Systemic diseases such as rheumatoid arthritis can also be associated with dizziness and vertigo, but osteoarthritis is not
.
Other risk factors for dizziness and vertigo include head injuries, taking certain medications, having a condition that affects the ears or balance, and having a family or personal history of
vertigo.
A history of headaches, particularly migraines, may be associated with
dizziness.
Question four
Which tests are usually performed before MRI during vertigo tests?
A.
Electrocardiography
B.
Magnetic resonance angiography
C.
CT scan
D.
Otoscopy
Swipe to see the answers
↓↓↓
↓↓↓
↓↓↓
【Answer and analysis】
Answer: D
.
Given the complexity and relevance of dizziness and vertigo, unnecessary examinations, imaging, and medication use are common
.
Otoscopy can rule out obvious infections, such as acute otitis
media.
Unilateral hearing loss is severe suggesting a peripheral cause; However, if the cause cannot be identified, further MRI is required to confirm the diagnosis
.
Question five
Which of the following is the most effective and safe treatment for acute vertigo?
A.
Antihistamines
B.
Benzodiazepines
C.
Antiemetics
D.
Glucocorticoids
Swipe to see the answers
↓↓↓
↓↓↓
↓↓↓
【Answer and analysis】
Answer: A
.
Although the most common medications used to treat vertigo symptoms usually include antiemetics, antihistamines, and benzodiazepines, a recent systematic review and meta-analysis found that single-dose antihistamines were more effective at relieving vertigo than single-dose benzodiazepines within 2 hours, and the available evidence does not support any association
between benzodiazepine use and improved outcomes in acute vertigo.
Compiled by Helmi L.
Lutsep.
Fast Five Quiz: Dizziness and Vertigo - Medscape - Sep 22, 2022.