Question

16. Which of the following positions may require placement of a catheter in the right atrium of the heart to remove an air embolism during craniectomy? a. lateral b. prone C. supine 19. Carpal tunnel syndrome involves compression of which of the following peripheral nerves? a. thoracodorsal b. peroneal c. median d. ulnar d. sitting 17. Which of the following is a bone replacement material cre- ated by mixing powder and liquid creating an exothermic response? a. bone wax b. methylmethacrylate C. topical thrombin d. microfibrillar collagen 20. Which of the following is a fatal congenital anomaly char acterized by lack of cranial formation and neural tube closure? a. hydrocephalus b. craniosynostosis c. anencephaly d. myelomeningocele describe the following surgica 18. How would a subdural hematoma most likely be caused? a. tearing of bridging dural veins b. laceration of the middle meningeal artery C. rupture of the posterior communicating artery d. penetration of the superior sagittal sinus 21. Define and briefly procedures: Craniotomy Cranioplasty Laminectomy

Answer 1

19.

Carpel tunnel syndrome is apainful and progressive condition. It causes pain, numbness and tingling sensation in hand and arms. The symptoms include paresthesia, hypoesthesia and pain. The major cause of this syndrome is the compression of the major peripheral vein.

Thoracodorsal nerve innervates the scapular region and hence does not run through wrist.

Hence, option (a) is incorrect.

Peroneal nerve runs through lower extremities.

hence, option (b) is incorrect.

Ulnar nerve compression causes numbness an dpain of little and ring finger.

Hence, option (d) is incorrect.

Median nerve is key nerve for the wrist that is compressed during carpel tunnel syndrome causing pain, numbness and parasthesia of the hands and wrist.

hence, option (c) is correct.

(Please create individual order for each question)