Question 1

Which of the following best describes Bell's palsy?

Accepted Answer

An idiopathic paresis or paralysis of the facial nerve of sudden onset, unrelated to other diseases.

Question 2

A patient presents with inability to wrinkle their forehead, drooping of the mouth corner, and difficulty closing one eye. Which cranial nerve is most likely affected?

Accepted Answer

Cranial nerve VII (Facial nerve)

Question 3

Which of the following is NOT a typical sign or symptom of Bell's palsy?

Accepted Answer

Loss of coordination (ataxia)

Question 4

A patient with Bell's palsy is advised to avoid hard chewy foods. What is the most likely reason for this recommendation?

Accepted Answer

To prevent aspiration due to impaired swallowing.

Question 5

Which of the following is a common cause associated with Bell's palsy?

Accepted Answer

Herpes Zoster

Question 6

Which treatment is most likely to be prescribed for a patient with Bell's palsy?

Accepted Answer

Oral corticosteroids

Question 7

A patient with Bell's palsy reports increased sensitivity to sound on the affected side. What is the term for this symptom?

Accepted Answer

Hyperacusis

Question 8

Which of the following equations best represents the relationship between the probability of idiopathic Bell's palsy ($$P_{BP}) $$and the probability of facial paralysis due to other causes ($$P_{OC}$$), assuming independence?

Accepted Answer

$$P_{BP} = 1 - P_{OC}$$

Question 9

Which of the following is a plausible reason for electrical stimulation in the treatment of Bell's palsy?

Accepted Answer

To improve muscle tone and prevent atrophy.

Question 10

A patient with Bell's palsy is unable to close their eye on the affected side. What complication is most likely to arise if this is not managed?

Accepted Answer

Corneal ulceration

Question 11

Which of the following is a distinguishing feature of Bell's palsy compared to an upper motor neuron facial paralysis?

Accepted Answer

Involvement of both upper and lower facial muscles on one side

Question 12

Which of the following is NOT considered a risk factor or associated condition for Bell's palsy?

Accepted Answer

Asthma

Question 13

A patient with Bell's palsy is prescribed acyclovir. What is the rationale for this medication?

Accepted Answer

To target possible viral etiology such as Herpes simplex virus.

Question 14

Which of the following best explains why Bell's palsy is classified as 'idiopathic'?

Accepted Answer

The exact cause is unknown and not related to other diseases.

Question 15

Which of the following symptoms would most likely help differentiate Bell's palsy from a stroke?

Accepted Answer

Inability to wrinkle the forehead on the affected side

Question 16

A patient with Bell's palsy is experiencing decreased saliva production. Which gland is most likely affected?

Accepted Answer

Submandibular gland

Question 17

Which of the following is the most appropriate initial management for a patient with Bell's palsy who cannot close their eye?

Accepted Answer

Artificial tears and eye protection

Question 18

If the probability of developing Bell's palsy in a population is $$0.02$$, what is the probability that two randomly selected individuals both have Bell's palsy, assuming independence?

Accepted Answer

$$0.02 	imes 0.02 = 0.0004$$

Question 19

Which of the following is a plausible reason for the use of oral corticosteroids in Bell's palsy?

Accepted Answer

To reduce inflammation and swelling of the facial nerve

Question 20

Which of the following best describes the onset of Bell's palsy?

Accepted Answer

Sudden onset of unilateral facial paralysis

Bell's Palsy: Etiology, Clinical Features, and Management

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