245.Burning foot syndrome is caused by

a.Vitamin B2
b.Vitamin B3
c.Vitamin B6
d.Vitamin B2

243.Absobtion of Vitamin B12 takes place through

a.deodenum
b.jejunum
c.Illeum
d.Colon

Ans-c.Illeum

242.All of the following drugs causes hyperkalemia except

a.NSAIDS
b.Heparin
c.Amphotericin B
d.cyclosporine

Ans-c.Amphotericin B

241.For how long EDTA remains active within the root canal if not inactivated?

a.5days
b.8days
c.10days
d.15days

Ans-5 days

240.Ruddles'solution contains

a.5%NaOCl&H2o2
b.5%NaOCl,Ca(oH)2& 17%EDTA
c.5%NaOCl,Hypaque& 17%EDTA
d.17%EDTA,Urea peroxide&Propylene glycol

Ans-c.5%NaOCl,Hypaque& 17%EDTA

239.All are true for home bleaching,except

a.Uses 15%carbamide peroxide
b.In addition to bleaching agent carbapol is used
c.Vacuum from vinyl trays are used
d.Both arches bleached simultaneously


Ans-d.Both arches bleached simultaneously

Explanation-sturdvent 4th ed pg 610-612
It is recommended that only one arch be bleached at a time, beginning with maxillary arch.bleaching the maxillary arch first allows theuntreated mandibular arch to serve as a comparison.

238.Which one of the following anaesthetic agents causes a rise in the intracranial pressure?

a.Sevoflurane
b.Thiopentone sodium
c.Lignocaine
d.Propofol

Ans-a.Sevoflorane

Explanation-Intracranial pressure increases at high inspired concentrations of Sevoflorane.Ref Aitkinhead 4th/159

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237.The blood brain barrier is present in all except

a.Postrema area
b.Subfornical organ
c.Neurohypophysis
d.Habernacular trigone

Ans-d.Habernacular trigone


Explanation:Refer ganong's physiology 22ed pg 615
Remember SONA OR SOAP Subfornical organ
Organum vasculosum
area postrema
posterior pituitary/neurohypophsis

236.Anaesthetic agent of choice in renal and hepatic failure

a.Doxacurium
b.Tubocurarine
c.Pancuronium
d.Atracurium

Ans-d.Atracurium


Isoflorane is also the anaesthetic of choice in renal and hepatic failure
Ref K.D.Tripathi 5th ed pg 314

235.Most common nerve used for monitoring anaesthesia

a.Ulnar nerve
b.Facial nerve
c.Radial nerve
d.Median nerve


Ans-a.Ulnar nerve

Explanation-Ref Ajay yadav Anaesthesia pg 46

234.All of the following muscles are composite muscles except

a.Pectineus
b.Rectus femoris
c.Adductor magnus
d.Biceps femoris

Ans-b.Rectus femoris

Explanation:BDC II /4th ed pg 64/Gray's 39 ed /1467,1469

233.Tributary of the cavernous sinus includes all of the following,except:

a.Superior petrosal sinus
b.Inferior petrosal sinus
c.Superfficial middle cerebral vein
d.Deep middle cerebral vein


Ans-a.Deep middle cerebral vein

Ref BDC III/4th ed /pg 94

232.In mass casuality,patients treated first are

a.Patients with life threatening injuries
b.Patients with maximum chances of survival with minimum available resource
c.Treating patients with multiple organ failure&that need equipment and mobility
d.All patients are treated equally


Ans-b.Patients with maximum chances of survival with minimum available resources


Explanation:Trauma by Moore 4th ed pg 83

231.When a case is transferred to ICU ,mandibular fractures are evaluated in

a.Primary survey
b.Secondary survey
c.Primary survey with IMF
d.Away from resusciation room


Ans-a.Primary survey


Explanation.Ref Fonseca vol 3rd pg 1-2,Peter ward booth pg 31,34