Showing posts with label MCQS With Answers. Show all posts
Showing posts with label MCQS With Answers. Show all posts

Wednesday, 1 August 2012

MCQS WITH DETAILED EXPLAINATION OF ANSWERS

1.Which one of the following is a good index of the severity of an acute disease?
1 Cause specific death rate.
2 Case fatality rate.
3 Standardized mortality ratio.
4 Five year survival


Answer is 2                 K PARK - PSM 17th ed/49 (repeat)

Case fatality rate represents the killing power of a disease. It is simply the ratio of deaths to cases. So It is a ratio not the true rate. Case fatality rate is closely related to virulence.
Total No. Of death d/t a particular disease                                                                     X 100 =C.F.R                           Total No. Of cases d/t the same disease



2. Distribution of blood flow is mainly regulated by the:
1 Arteries
2 Arterioles
3 Capillaries
4 Venules


Answer is 2
GANONG ,S REVIEW OF PHYSIOLOGY ED 19 Pg-579

        Blood flow in the vessels primarily due to pumping action of the heart
Other factors are diastolic recoil of walls of arteries, pumping action skeletal muscle on
veins and negative intrathoracic pressure
        Regulation of Blood flow to each tissue is depends on the diameter of the vessels
principally of arterioles. Resistance to flow mostly depends on diameter of arterioles and to a minor degree on the viscosity of the blood. Arterioles are the major site of the resistance to blood flow and small change in their caliber causes large change in the total peripheral resistance.



3. A 2-year-old female child was brought to a PHC with a history of cough and fever for 4 days with inability to drink for last 12 hours. On examination, the child was having weight of 5 kg and respiratory rate of 45/minute with fever. The child will be classified as suffering from:
1 Very severe disease.
2 Severe Pneumonia.
3 Pneumonia.
4 No Pneumonia.


Answer is 3
K PARK PSM 17th ed/137
Management of pneumonia in a child aged 2 months upto 5 years
SIGNS
Chest indrawing (if also recurrent wheezing, go directly to treat wheezing
No chest indrawing but fast breathing
(50 per minute or more if child 2 months -upto 12 months,
  40 per minute or more if child 12 months upto 5 years
No chest indrawing Nofastbreathing (Less than 50 per minute if child 2 months upto 5 years).
CLASSIFY AS
SEVERE PNEUMONIA
PNEUMONIA
NO PNEUMONIA COUGH OR COLD