Chlamydia trachomatis and other Chlamydia spp

                           Multiple Choice Question with answers on Chlamydiae spp

1) Which of the following Chlamydia spp are human pathogens? 
Select from all the options given below:
a) Chlamydia pecorum
b) Chlamydia psittaci
c) Chlamydia trachomatis
d) Chlamydia pnuemoniae

2) Which of the following is a common specimen used for the diagnosis of sexually transmitted chlamydial infections that occur in both men and women?
a) Oral swab
b) Cerebrospinal fluid
c) Urine
d) Skin biopsy

3) What type of methods are important laboratory approaches for the diagnosis of genital Chlamydia spp infections? 
Select all the correct answers:
a) Specimen culture in McCoy cell tissue culture
b) Direct fluorescent antibody and Enzyme-linked immunoassay
c) Serological tests
d) Nucleic acid amplification test

4) Chlamydia is one of the major pathogens that cause sexually transmitted diseases.
What is the most common symptom of the disease that can occur both in men and women?
a) Diarrhea and vomiting
b) Mouth ulcers or sores
c) Flu-like symptoms with high-grade fever
d) Painful urination with abnormal discharge

5) Which of the following antibiotics are most commonly prescribed for the treatment of chlamydia infection?
a) Rifampin and isoniazid
b) Metronidazole
c) Doxycycline and azithromycin
d) Ciprofloxacin and ceftriaxone

6) Which of the following statements are NOT the distinguishing features of the family Chlamydiaceae?
a) They are seen on Gram stain
b) They are obligate intracellular bacteria
c) They cannot make ATP
d) They consist of two forms elementary and reticulate body

7) All of the statements given below are correct about Chlamydia psittaci, EXCEPT?
a) It is a primary pathogen of birds
b) It can cause respiratory infections in human
c) It is usually resistant to sulfonamides
d) It only infects birds like parrots and cockatoos

8) What is the most sensitive laboratory diagnostic tests for Chlamydia pneumoniae?
a) Giemsa staining test
b) Micro immunofluorescence test
c) Cell culture method
d) None of the above

9) Human is the only reservoir of Chlamydophila pneumoniae, the pathogen that is most prevalent in which age group of people?
a) 2 to 5 years
b) 10 to 30 years
c) 5 to 18 years
d) 20 to 45 years

10) Name the organism given below which is frequently associated with urethritis apart from Chlamydia trachomatis?
a) Klebsiella pneumoniae
b) E. Coli
c) Streptococcus agalactiae
d) Neisseria gonorrohoea

11) All of the statements given below are correct about pathogenic Chlamydophila pneumoniae, EXCEPT?
a) It causes respiratory infections that are common in young children
b) The bacteria spread from person to person via a respiratory route
c) It produces intracytoplasmic inclusions that lack glycogen
d) The infections caused by the bacteria are usually asymptomatic

12) When do the symptoms of neonatal pneumonia in babies start to show caused by Chlamydia trachomatis?
a) In 1 week after the birth
b) In 2 to 12 weeks after birth
c) In 5 to 10 days after the birth
d) In 2 to 3 weeks after the birth

13) Which of the following pathogens are associated with the disease 'reiter's syndrome'? 
Select all the correct options:
a) Chlamydia trachomatis
b) Staphylococcus aureus
c) Ureaplasma urealyticum
d) Neisseria gonorrhoea

14) All of the following statements about C.trachomatis are correct, Except?
a) A leading cause of ocular and genital infections 
b)The organism grows well in the egg yolk sac
c)It occurs in two bodies form, elementary and reticulate 
d)A common pathogen of acute respiratory disease

15) Which of the following bacteria is responsible for the infection 'psittacosis' that is transmitted from the parrots to humans?
a) Chalmydia trachomatis
b) Chlamydia pneumoniae
c) Chlamydia psittaci
d) Chlamydia pecorum

16) Which of the following syndrome is most commonly associated with complications of pelvic inflammatory disease caused by Chlamydia trachomatis?
a) Blue baby syndrome
b) Fitz-Hugh Curtis Syndrome
c) Toxic shock syndrome
d) Leaky gut syndrome

17) Name the different body parts that can be infected by the spread of C.trachomatis through the bloodstream usually in the late stage of the infection
a) Eye
b) Joints
c) Urethra
d) Heart

18) A vaginal swab specimen was taken from the 23 year old patient with symptoms of painful urination, a laboratory diagnosis of the chlamydial pathogen was performed. 
Select all the correct methods commonly used for the isolation of the bacteria
a) Venereal disease research laboratory test
b) Direct microscopic examination by using gram stain
c) Agar culture plate method
d) Nucleic acid amplification test

19) Chlamydia trachomatis reinfection can occur in both men and women
a) TRUE
b) FALSE

20) 


Answers:
1- Option b, c, and d 
2-c) Urine
3-Option a, b, c & d
4-d) Painful urination with abnormal discharge
5-c) Doxycycline and azithromycin
6-a) They are seen on Gram stain
7-d) It only infects birds like parrots and cockatoos
8-b) Microimmunoflourescence test
9-c) 5 to 18 years
10-d) Neisseria gonorrohoea
11-a) It causes respiratory infections that are common in young children
12-b) In 2 to 12 weeks after birth
13-a) and d)
14-d)A common pathogen of acute respiratory disease
15-c)Chlamydia psittaci
16-b)Fitz-Hugh Curtis Syndrome
17-a), b) and c)
The heart is not a common site for C.trachomatis
18- b), c), and, d)
Option a) VDRL test is used for the diagnosis of syphilis but not chlamydia infection
19-a)TRUE, the infection can occur more than one time





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