Paper : Sample Paper For Medical Exams : Solved Version With Few Explanations

1. An anesthetist orders a new attendant to bring the oxygen cylinder. He will ask the attendant to identify the correct cylinder by following color code:

1.Black cylinder with white shoulders.
2.Black cylinder with gray shoulders.
3.White cylinder with black shoulders.
4.Grey cylinder with white shoulders.

Ans. 1

2. During rapid sequence induction of anesthesia:

1.Slick’s maneuver is not required.
2.Pre-oxygenation is mandatory.
3.Suxamethonium is contraindicated.
4.Patient is mechanically ventilated before end tracheal incubation.

Ans. 2?

3. A 5-year-old boy suffering from Duchenne muscular dystrophy has to undergo tendon-lengthening procedure. The most appropriate anaesthetic would be:

1.Induction with intravenous thiopentone and N2O; and halothane for maintenance.
2.Induction with intravenous protocol and N2O; and oxygen for maintenance.
3.Induction with intravenous suxamethonium and N2O; and halothane for maintenance.
4.Inhalation induction with inhalation halothane and N2O; oxygen for maintenance.

Ans. 2

4. A 25 years old male is undergoing incision and drainage of abscess under general anesthesia with spontaneous respiration. The most efficient anaesthetic circuit is:

1.Mapleson A.
2.Mapleson B.
3.Mapleson C.
4.Mapleson D.

Ans.1

5. In all of the following conditions neuraxial blockade is absolutely contraindicated, except:

1.Patient refusal.
2.Coagulopathy
3.Severe hypovolemia.
4.Pre-existing neurological deficits.

Ans. 4? 1?

6. Interscalene approach to brachial plexus block does not provide optimal surgical anaesthesia in the area of distribution of which of the following nerve:

1.Musculocutaneous.
2.Ulnar
3.Radial
4.Median.

Ans. 2?

7. The commonest variation in the arteries arising from the arch of aorta is:

1.Absence of brachiocephalic trunk.
2.Left vertebral artery arising from the arch.
3.Left common carotid artery arising from brachiocephalic trunk.
4.Presence of retroesophageal subelavian artery.

Ans. 3 [Ref Gray 38th ed page 1513. 65% Normal pattern > 27 % Left common carotid from brachiocephalic trunk > 2.5 % four major arteries branched separately ]

8. The blood vessel related to the paraduodenal fossa is:

1.Gonadal Vein.
2.Superior mesenteric artery.
3.Portal vein.
4.Inferior mesenteric vein.

Ans. 4

9. The nerve commonly damaged during McBurney's incision is:

1.Subcostal
2.Iliohypogastric.
3.11th Thoracic.
4.10th thoracic.

Ans.2

10. The lumbar region of the vertebral column permits all of the following movements except:

1.Flexion
2.Extension
3.Lateral Flexion
4.Rotation

Ans.4

11. All of the following are examples of traction epiphysis, except:

1.Mastoid process.
2.Tubercles of Humerus.
3.Trochanters of femur.
4.Condyles of tibia.

Ans.4

12. All of the following statements are true for metaphysis of bone except:

1.It is the strongest part of bone.
2.It is the most vascular part of bone.
3.Growth activity is maximized here.
4.It is the region favouring hematogenous spread of infection.

Ans.3 [ Growth activity is max at epiphyseal plate, fractures are least common at metaphysis. chaurasia handbook of general anatomy.
GRAY Pg 454 38th edition Metaphysis—developing, juxta-epiphysical regions of shaft.
Grays Anatomy Page 477 38th Edition - ......growth plate next to the metaphysis soon becomes the most active region, and rapidly enlarging cell columns are directed towards the metaphyseal plate......]

13. All of the following features can be observed after the injury to axillary nerve except:

1.Loss of rounded contour of shoulder.
2.Loss of sensation along lateral side of upper arm.
3.Loss of overhead abduction.
4. Atrophy of deltoid muscle.

Ans.3

14. Allof the following muscles are grouped together as muscles of mastication except:

1.Buccinator.
2.Masseter.
3.Temporalis.
4.Pterygoids.

Ans. 1

15. Referred pain from ureteric colic is felt in the groin due to involvement of the following nerve:

1.Subcostal.
2.Iliohypogastric.
3.Ilioinguinal.
4.Genitofemoral

Ans.4 [ GRAY ANATOMY - Referred pain due to ureteric colic - It shoots down and forwards from the loin to the groin and scrotum or labium majus and may extend into the proximal anterior aspect of the thigh by projection to the genitofemoral nerve (L1, 2); the cremaster (which has the same innervation) may reflexly retract the testis] By this the answer should be 4 We should go for answer 4 but S das textbook of surgery suggests otherwise read below-

[ Das textbook surgery page 1136 1st ed says that upper ureteric colic referred to loin and groin is carried by Iliohypogastric and Ilioinguinal nerve. Since skin is supplied by Iliohypogastric then is should be the answer. When ureteric colic pain is referred to testicles / thigh then Genitofemoral nerve is involved]

16. The right coronary artery supplies all of the following parts of the conducting system in the heart except:

1.SA Node.
2.AV Node.
3.AV Bundle.
4.Right boundle branch.

Ans.3

17. A commonest cause for neuralgic pain in foot is:

1.Compression of Communication between medical and lateral planter nerves.
2.Exaggeration of longitudinal arches.
3.Injury to deltoid ligament.
4.Shortening of planter aponeurosis.

Ans.?1

18. The main enzyme responsible for activation of xenobiotics is:

1.Cytochrome P-450
2.Glutathione S-transferase.
3.NADPH cytochrome P-450-reductase.
4.Glucuronyl transferase.

Ans. 3 [ Harper ed 23rd page 705 Chapter 61-Xenobiotics Mentions that NADPH cytochrome P-450-reductase is involved NOT NADH]

19. The primary defect which leads to sickle cell anemia is:

1.An abnormality in porphyrin part of hemoglobin.
2.Replacement of glutamate by valine in B-chain of HbA.
3.A nonsense mutation in the B-chain of HbA.
4.Substitution of valine by glutamate in the a-chain of Hba.

Ans. 2

21. Decreased Glycolytic activity impairs oxygen transport by hemoglobin due to:

1.Reduced energy production.
2.Decreased production of 2,3-bisphosphoglycerate.
3.Reduced synthesis of hemoglobin.
4.Low levels of oxygen.

Ans. 2

22. The primary role of chaperones is to help in:

1.Protein synthesis.
2.Protein degradation.
3.Protein denaturation.
4. Protein folding.

Ans. 4

23. The conversion of an optically pure isomer (enantiomer) into a mixture of equal amounts of both dextro and levo forms is called as:

1.Polymerization.
2.Stereoisomerization.
3.Racemization.
4.Fractionation.

Ans. 3

24. The protein rich inbasic amino acids, which functions in the packaging of DNA in chromosomes, is:

1.Histone.
2.Collagen.
3.Hyaluronic acid binding protein.
4.

Ans.1

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