Friday, April 3, 2009

200 - UPSC 2007 medical entrance mcqs with answers part 10

Directions:
The following 3 (three) items consist of two statements, one labelled as the' Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the correct answer using the code given below.
(a) Both A and R are individually true and R is the correct explanation of A .
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

46. Assertion (A) : If Perthes test is positive, surgery is
absolutely contraindicated in varicose vein
of leg.
Reason (R) : Perthes test confirms perforator
incompetence.


47. Assertion (A) : Raloxifene is a drug used in the
treatment of breast carcinoma.
Reason (R) : It is preferred over tamoxifen since it
has less incidence of thromboembolism.


48. Assertion (A) : Femoral hernia is more likely to become
strangulated than inguinal hernia.
Reason (R) : Femoral hernia is more common in
females and gets neglected more often.


49. Of the various modalities used in the treatment of life-threatening effects of hyperkalemia, which one of the following has the most rapid onset of action?

(a) Hemodialysis
(b) Sodium bicarbonate infusion
(c) Insulin and glucose infusion
(d) Intravenous calcium gluconate


50. A patient presents with acute gastroenteritis in a dehydrated state. Which of the following conditions is highly suggestive of pre-renal renal failure?

(a) Urinary sodium greater than 40 m mol;
Urine osmolality  greater than 500 m osm/L
(b) Urinary sodium greater than 40 m mol;
Urine osmolality less than 500 m osm/L
(c) Urinary sodium less than 40 m mol 
Urine osmolality greater than 500 m osm/L
(d) Urinary sodium less than 40 m osm/L 
Urine osmolality less than 500 m osm/L

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