Neurotrauma Quiz – December 2015^[*]

• Q1. Akinetopsia can be defi ned as?

  • Inability to appreciate the depth of the object

  • Inability to appreciate the form of the object

  • Inability to appreciate the object in motion

  • Inability to appreciate the color of the object

• Q2. Winging of the scapula is a failure to hold the medial border of the scapula against the rib cage. What is not true about the etiology?

  • Consequence of weakness of the serratus anterior muscle

  • Neuropathy of the long thoracic nerve of bell

  • Consequence of brachial plexus injury or cervical root (C7) injury.

  • Spinal accessory (XI) nerve palsy

• Q3. Xanthopsia is a visual disturbance. What is not true about Xanthopsia?

  • Characterized by excessive perception of yellow colors

  • Associated with use of digoxin

  • Associated with use of thiazides (especially chlorothiazide)

  • Caused by injury to visual cortex

• Q4. What is not true about sequential paresis or “round-the-clock” paresis?

  • Sequential development of weakness in one arm, the ipsilateral leg, the contralateral leg, and contralateral arm

  • Sequential development of weakness in both legs followed by weakness of arms

  • Sequential paresis pattern is highly suggestive of a foramen magnum lesion

  • It involves the lamination of corticospinal fi bers in the medullary pyramids.

• Q5. Which of these statements about the epidemiology of hyponatremia is false?

  • Prevalence is lower in ambulatory settings

  • Hyponatremia is more common in the elderly

  • Patients with alcoholism have a lower mortality rate

  • Severe hyponatremia has a high mortality rate

• Q6. Patients with hyponatremia are at increased risk for which of the following?

  • Coma

  • Hypertension

  • Stroke

  • Ophthalmologic complications

• Q7. Which of the following is recognized as a common behavioral cause of foot drop?

  • Prolonged standing

  • Use of improper footwear

  • Dehydration

  • Habitual crossing of the legs

• Q8. Which of the following causes of foot drop is associated with the best prognosis?

  • Partial peroneal nerve palsy

  • Blunt trauma to the peroneal nerve

  • Penetrating trauma to the peroneal nerve

  • Nerve root compressive neuropathy

• Q9. Which of the following compartments is most commonly involved in chronic compartment syndrome associated with foot drop?

  • Lateral

  • Anterior

  • Superfi cial posterior

  • Deep posterior

• Q10. Which of the following foot drop causes warrants early surgical repair?

  • Blunt laceration

  • Lesions in continuity

  • Peroneal nerve palsy due to knee arthroplasty

  • Sharp laceration with suspected nerve transection

• Q11. What is not true about traumatic brain injury (TBI)?

  • Approximately 75 to 80% of TBIs are mild in severity

  • The majority of TBI occurs in males aged between 15 and 24 years

  • <10% of individuals with mild TBI (mTBI) suffer from long-term disability

  • Most patients recover completely from their mTBI

• Q12. Incidence of spinal injuries in patients with severe head injuries is?

  • < 6% of all multitrauma patients

  • < 1% of all multitrauma patients

  • 18% of all multitrauma patients

  • 24% of all multitrauma patients

• Q13. Which of the following is NOT an essential laboratory test used in the evaluation of patients with hyponatremia?

  • Urine osmolality

  • Thyroid-stimulating hormone (TSH) levels

  • Serum osmolality

  • Urinary sodium concentration

• Q14. Which of the following includes the diagnostic criteria for the syndrome of inappropriate antidiuretic hormone secretion (SIADH)?

  • Hypotonic hyponatremia

  • Hypothyroidism

  • Renal failure

  • Urine osmolality <100 mOSM/kg

• Q15. Which of the following is the recommended therapy for hyponatremia?

  • Water restriction.

  • Hypertonic saline

  • Demeclocycline

  • All of the above

Key to Neurotrauma Quiz – December 2015

Question no.	Question	Key
1.	Akinetopsia can be defi ned as?	c
2.	Winging of the Scapula, is a failure to hold the medial border of the scapula against the rib cage. What is not true about the etiology?	d
3.	Xanthopsia is a visual disturbance, what is not true about Xanthopsia?	d
4.	What is not true about sequential Paresis Sequential, or “round the clock,” paresis?	b
5.	Which of these statements about the epidemiology of hyponatremia is FALSE?	c
6.	Patients with hyponatremia are at increased risk for which of the following?	a
7.	Which of the following is recognized as a common behavioral cause of foot drop?	d
8.	Which of the following causes of foot drop is associated with the best prognosis?	a
9.	Which of the following compartments is most commonly involved in chronic compartment syndrome associated with foot drop?	b
10.	Which of the following foot drop causes warrants early surgical repair?	d
11.	What is not true about Traumatic brain injury (TBI)?	c
12.	Incidence of spinal injuries in patients with severe head injuries is?	a
13.	Which of the following is NOT an essential laboratory test used in the evaluation of patients with hyponatremia?	b
14.	The diagnostic criteria for the syndrome of inappropriate antidiuretic hormone secretion (SIADH) includes which of the following?	a
15.	Which of the following is the recommended therapy for hyponatremia?	d

^* The key to this Neurotrauma Quiz can be found in online version of issue (December 2015).