NUR 600 Exam #3-QUESTIONS AND ANSWERS |
2026 UPDATED | 100% CORRECT
Differentials for causes of unilateral facial droop/numbness
1. Stroke/TIA
2. Bell's Palsy (CN VII mononeuropathy)
3. Trauma
4. Sarcoidosis
5. Parotid tumors
6. Amyloidosis
7. DM
8. Pregnancy
9. Intranasal influenza vaccine
10. TMJ disorder
2 things that can cause Bell's palsy (& facial weakness)
1. Varicella-Zoster Reactivation
2. Lyme Disease (unilateral or bilateral)
2 things that can cause unilateral OR bilateral facial weakness
1. Sjogren syndrome
2. Guillain-Barre syndrome
Bell's Palsy & symptoms
,-CN VII mononeuropathy
-Forehead stays smooth, unilateral facial paralysis, pain in/around/behind ear
-Fever, Tinnitus, Hearing diminution, Decreased corneal reflex
-Rare: Loss of taste (anterior 2/3 tongue), Altered sound sensitivity
Nasolabial fold
1. Bell's Palsy- palpebral fissure appears widened, forehead smooth, nasolabial fold is flattened
on the involved side- affects WHOLE FACE
2. Stroke- flattened nasolabial fold on affected side, usually only lower face & spares forehead
Meds for Bell's Palsy symptom improvement
1. Corticosteroids (Prednisone): Reduce ear pain, Decrease chronic autonomic dysfunction,
Improve recovery
2. Methylcellulose drops: Prevent corneal injury
3. Antiviral therapy if herpes infection suspected:
a. Valacyclovir: 1000 mg BID for 7-10 days
b. Acyclovir: Less preferred (frequent dosing → poor adherence)
Remember cranial nerves
Oh: Olfactory (1)
Oh: Optic (2)
Oh: Oculomotor (3)
To: Trochlear (4)
Touch: Trigeminal (5)
And: Abducens (6)
, Feel: Facial (7)
A VERY: Acoustic/Vestibulocochlear (8)
Good: Glossopharyngeal (9)
Vein: Vagus (10)
Ah: Spinal Accessory (11)
Heaven: Hypoglossal (12)
Remember cranial nerves (M/S/B)
Some: I (sensory)
Say: II (sensory)
Marry: III (motor)
Money: IV (motor)
But: V (both)
My: VI (motor)
Brother: VII (both)
Says: VIII (sensory)
Big: IX (both)
Brains: X (both)
Matter: XI (motor)
More: XII (motor)
CN IV Function: (study guide)
Trochlear
-(M) downward, internal rotation of the eye, medial
2026 UPDATED | 100% CORRECT
Differentials for causes of unilateral facial droop/numbness
1. Stroke/TIA
2. Bell's Palsy (CN VII mononeuropathy)
3. Trauma
4. Sarcoidosis
5. Parotid tumors
6. Amyloidosis
7. DM
8. Pregnancy
9. Intranasal influenza vaccine
10. TMJ disorder
2 things that can cause Bell's palsy (& facial weakness)
1. Varicella-Zoster Reactivation
2. Lyme Disease (unilateral or bilateral)
2 things that can cause unilateral OR bilateral facial weakness
1. Sjogren syndrome
2. Guillain-Barre syndrome
Bell's Palsy & symptoms
,-CN VII mononeuropathy
-Forehead stays smooth, unilateral facial paralysis, pain in/around/behind ear
-Fever, Tinnitus, Hearing diminution, Decreased corneal reflex
-Rare: Loss of taste (anterior 2/3 tongue), Altered sound sensitivity
Nasolabial fold
1. Bell's Palsy- palpebral fissure appears widened, forehead smooth, nasolabial fold is flattened
on the involved side- affects WHOLE FACE
2. Stroke- flattened nasolabial fold on affected side, usually only lower face & spares forehead
Meds for Bell's Palsy symptom improvement
1. Corticosteroids (Prednisone): Reduce ear pain, Decrease chronic autonomic dysfunction,
Improve recovery
2. Methylcellulose drops: Prevent corneal injury
3. Antiviral therapy if herpes infection suspected:
a. Valacyclovir: 1000 mg BID for 7-10 days
b. Acyclovir: Less preferred (frequent dosing → poor adherence)
Remember cranial nerves
Oh: Olfactory (1)
Oh: Optic (2)
Oh: Oculomotor (3)
To: Trochlear (4)
Touch: Trigeminal (5)
And: Abducens (6)
, Feel: Facial (7)
A VERY: Acoustic/Vestibulocochlear (8)
Good: Glossopharyngeal (9)
Vein: Vagus (10)
Ah: Spinal Accessory (11)
Heaven: Hypoglossal (12)
Remember cranial nerves (M/S/B)
Some: I (sensory)
Say: II (sensory)
Marry: III (motor)
Money: IV (motor)
But: V (both)
My: VI (motor)
Brother: VII (both)
Says: VIII (sensory)
Big: IX (both)
Brains: X (both)
Matter: XI (motor)
More: XII (motor)
CN IV Function: (study guide)
Trochlear
-(M) downward, internal rotation of the eye, medial
