Mycoplasma Infections

1.       Smallest free living organisms are :

a)      Virus

b)      Mycoplasma

c)       Bacterium

d)      Fungus

 

2.       All are features of Mycoplasma except:

a)      Double stranded DNA

b)      Cell wall is made of sterol

c)       Grows in acellular medium

d)      Does not respond to beta lactams

e)      Self replicating

 

3.       All are pathogenic strains of mycoplasma EXCEPT:

a)      M.Hominis

b)      M. Pneumonia

c)       M.Oralis

d)      Ureaplasma urealyticum

e)      U. Parvum

 

4.       Which are the clinical manifestations of Mycoplasma :

a)      Pneumonia

b)      Urethritis

c)       PID

d)      Prostatitis

e)      Conjunctivitis

f)       URI

g)      All of the above

 

5.       All are seen in mycoplasma infections EXCEPT:

a)      Ciliary damage and desquamation of respiratory epithelia

b)      Hacking cough and Walking pneumonia

c)       Cold agglutinins against I antigen of RBC

d)      Uncommon in Sickle cell anaemia and DOWNS syndrome

e)      Bullous myringitis

 

6.       All are EXTRA PULMONARY manifestations of Mycoplasma infections EXCEPT:

a)      Rash and SJS

b)      Myocarditis

c)       GBS and optic neuritis

d)      Polyarthralgia

e)      Aplastic anaemia

f)       Nephritis

g)      Raynaud’s phenomenon

h)      None of the above

 

7.       The Best drug against Mycoplasma is :

a)      Macrolide

b)      Tetracyclines

c)       Fluroquinolones

d)      Sulfonamides

e)      Betalactams

 

8.       All are the advantages of macrolides  against Mycoplasma EXCEPT:

a)      Action is at DNA level

b)      Resistance is uncommon compared to fluroquinolones

c)       High intacellular penetrance

d)      Long half life in blood

e)      None of the above

 

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