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undergraduate second year Biomedical science 2nd year (Medical Microbiology) Quiz on Medical Microbiology-UTIs, created by Idont Evencare on 14-04-2017.

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Medical Microbiology-UTIs

Question 1 of 35

1

How many women have a recurrent UTi at some point in their life

Select one of the following:

  • 20-30%

  • 10%

  • 78%

  • 5%

  • 45-55%

Explanation

Question 2 of 35

1

Urinary tract is in women the most common site of what kind of infection

Select one of the following:

  • bacterial

  • parasitic

  • fungal

  • viral

Explanation

Question 3 of 35

1

UTIs are a significant cause of mortility

Select one of the following:

  • True
  • False

Explanation

Question 4 of 35

1

Majority of UTIs are

Select one or more of the following:

  • acute

  • short lived

  • chronic

  • fatal

  • asymptomatic

Explanation

Question 5 of 35

1

What is the usual route of bacterial infection in UTIs?

Select one of the following:

  • minor calyx - major calyx - ureter

  • urethra - bladder

  • urethra - ureter - bladder

  • isthmus of utherus - fundus of utherus - bladder

  • bladder - kidneys

  • utherus - bladder - kidneys

Explanation

Question 6 of 35

1

Septicaemia occurs when

Select one of the following:

  • There is a low concentraion of bacteria in the blood

  • Bacteria from the urinary tract invade bloodstream

  • The blood is sterile

  • Bacteria infect the kidneys, resulting in an inflammation

  • There is bacterial infection, in any organ of the body

Explanation

Question 7 of 35

1

Pylonephritis occuring without bladder infection is

Select one or more of the following:

  • called heamatogenous spread

  • rare

  • not possible

  • common

  • called cystitis

Explanation

Question 8 of 35

1

Nosocomial is another word for community acquired infection

Select one of the following:

  • True
  • False

Explanation

Question 9 of 35

1

Enterobacteriacaea

Select one or more of the following:

  • are gram negative bacteria

  • are gram positive bacteria

  • include E. coli

  • include Staph aureus

  • most common cause of UTIs

  • common in hospital acquired UTIs, but not so in community acquired

Explanation

Question 10 of 35

1

Hospital acquired UTIs are commonly a result of

Select one or more of the following:

  • Pseudomonas aeruginosa

  • Klebsiella

  • Enterobacter

  • Citrobacter

  • Pseudomonas putida

  • Proteus

  • Salmonella typhi

  • Corynebacterium

  • Streptococcus

  • Yersenia pestis

Explanation

Question 11 of 35

1

Amongst gram positive bacteria causing UTIs belong

Select one or more of the following:

  • Staphylococcus saprophyticus

  • Enterococcus

  • E. coli

  • Pseudomonas aeruginosa

  • Klebsiella

  • Staphylococcus aureus

  • Staphylococcus epidermis

  • Mycobacterium tuberculosis

Explanation

Question 12 of 35

1

Most common gram positive bacteria in UTIs is

Select one of the following:

  • Staphylococcu saprophyticus

  • Staphylococcus epidermis

  • Staphylococcus aureus

  • Enterococcus faecium

  • Staphylococcus auricularis

  • Escherichia coli

Explanation

Question 13 of 35

1

Immunodeficient patients (unlike other patients) with UTI are often found to be infected with

Select one or more of the following:

  • Enterococcus

  • Staphylococcus epidermis

  • Salmonella typhi

  • Klebssiella

Explanation

Question 14 of 35

1

Common bacteria causing UTI by heamatogenous spread are

Select one or more of the following:

  • Staphylococcus epidermis

  • Salmonella typhi

  • Mycobacterium tuberculosis

  • Staphylococcus aureus

  • Staphylococcus saprophyticus

  • Citrobacter

Explanation

Question 15 of 35

1

Select the bacteria you would expect to be present in the following cases:
Nosocomal UTI patient with an immunodeficiency:
UTI acqured by a heamatogenous spread:
Gram positive hospital acquired UTI:
Most common to cause an UTI:

Drag and drop to complete the text.

    Staphylococcus aureus
    Staphylococcus epidermis
    Staphylococcus saprophyticus
    E. coli
    Pseudomonas aeruginosa

Explanation

Question 16 of 35

1

Select a correct statement about community acquired UTI:

Select one of the following:

  • 80% of cases are caused by E. coli

  • 40% of cases are caused by E. coli

  • most commonly caused as a cosequence of catheter insertion

  • 60% is caused by gram negative bacteria

  • 60% is caused by gram positive bacteria

Explanation

Question 17 of 35

1

What are the symptoms of UTI?

Select one or more of the following:

  • microturition

  • macrourination

  • dysuria

  • urgency

  • lack of need to pass urine

  • itching

  • angular stomatitis

  • pallor

Explanation

Question 18 of 35

1

Match the correct definitions:
- Cloudy urine due to the presence of pus cells
- Cloudy urine due to the presenece of bacteria
- Presence of blood in the urine
- A burning pain on passing urine
- Infection of the kidney

Drag and drop to complete the text.

    Pyuria
    Bacteriuria
    Septicaemia
    Haematuria
    Haemolysis
    Biliverdinea
    Dysuria
    Anuria
    Pyelonephritis
    Glomerulonephritis
    bacteraemia

Explanation

Question 19 of 35

1

Which of the following are symptoms pf pyelonephritis

Select one or more of the following:

  • symptoms of lower UTIs

  • back pain

  • easy bruising

  • keratitis

  • malnutrition

  • fever

Explanation

Question 20 of 35

1

Which of the following statements about pyelonephritis are correct

Select one or more of the following:

  • it is often caused by staphylococci

  • if recurrent can cause severe kidney damage

  • if recurrent can cause irreversible bladder damage

  • it is infection of the bladder

  • renal abscesses are usually absent

  • it is also called upper urinary tract infection

  • is more severe than lower UTI

Explanation

Question 21 of 35

1

Who is at risk of aymptomatic UTI

Select one or more of the following:

  • young adults

  • pregnant women

  • immunodeficient patients

  • diabetic patients

  • patients with Duchenne muscular dystophy

  • children and elderly

  • 30 year old men

Explanation

Question 22 of 35

1

Asymptomatic UTI can only be detected by laboratory screenings

Select one of the following:

  • True
  • False

Explanation

Question 23 of 35

1

Bacteriuria can proceed into bacteraemia

Select one of the following:

  • True
  • False

Explanation

Question 24 of 35

1

At what bacterial concentraion is bacteriuria considered significant

Select one of the following:

  • >10^5 organisms/mL

  • <10^5 organisms/mL

  • >10^9 organisms/mL

  • >10^4 organisms/mL

  • <10^4 organisms/mL

  • 10^6 - 10^9 organisms/mL

Explanation

Question 25 of 35

1

How can infection be distinguished from contamination?

Select one or more of the following:

  • by quantative culture methods

  • by modern PCR

  • good specimens will always contain periurethral flora

  • infected urine usually contains only one species

  • threshold for contaminated specimen is >5 species

  • contaminated specimen would contain <10^4 organisms/mL

  • infected specimen wowuld contain >10^3 organisms/mL

Explanation

Question 26 of 35

1

Urinary tract is normally sterile

Select one of the following:

  • True
  • False

Explanation

Question 27 of 35

1

Low bacterial counts are always insignificant

Select one of the following:

  • True
  • False

Explanation

Question 28 of 35

1

How can urine samples be collected?

Select one or more of the following:

  • Suprapubic aspiration

  • Nephrostomy tubes

  • Nasopharyngeal aspirates

  • Excision

  • First stream urine

  • Midstream urine

  • Lumbar puncture

Explanation

Question 29 of 35

1

Presence if WBC in urine is

Select one or more of the following:

  • always indicative of UTI

  • abnormal

  • normal

  • an indicative of contamination

  • can form urinary casts

  • indicative of infection if at concentraion >10/mL

Explanation

Question 30 of 35

1

Sterile pyuria could indicate

Select one or more of the following:

  • antibiotic therapy

  • nothing, it´s not possible

  • infection by organisms not detectable by conventional techniques (e.g. Mycobacterium tuberculosis, Chlamydia, Gonorrhoea)

  • infection by organisms not detectable by conventional techniques (e.g. Staphylococcus saprophyticus, Salmonella typhi, E. coli)

  • diseases not caused by bacteria (e.g. renal canaliculli, neoplasms)

  • viral UTI

Explanation

Question 31 of 35

1

Culture is performed

Select one or more of the following:

  • after microscopy

  • prior to microscopy

  • when UTI is suspected

  • to establish whether or not UTI is to be suspected

  • to identify the organism

  • to count the bacteria

Explanation

Question 32 of 35

1

Which of the following statements about agar cultures are correct:

Select one or more of the following:

  • mixed growth is indicative of contamination

  • bacteria can be identified by the colour which is a result of sugar fermentation

  • bacteria are idedntified by the time they take to grow to 1mm thickness

  • bacteria can be identified by the colour which is a result of toxin release

  • sensitivity plates are set up after culture is performed

  • culture plates are usually completed within 24 hours

Explanation

Question 33 of 35

1

What is the routine treatment for UTI?

Select one or more of the following:

  • Amoxicillin; if patients are allergic to penicillin

  • Amoxicillin

  • Ciprofloxacin; if patients are allergic to penicillin

  • Ciprofloxacin

  • Oritavancin

  • Oritavancin combined with Vancomycin

  • Cefoxitin; if patients are allergic to penicilin

  • Cefoxitin

Explanation

Question 34 of 35

1

Which statements about microorganisms causing UTIs are correct

Select one or more of the following:

  • viruses cause significant UTIs

  • E. coli is the predominant pathogen

  • they are usually of endogenous origin

  • community acquired UTIs are commonly caused by multiple-resistant gram negative bacteria

  • they cause an UTI via blood

Explanation

Question 35 of 35

1

Which statements about tretment of UTIs are correct

Select one or more of the following:

  • oral antibiotcs are not effective for lower UTI

  • lower UTIs are usually short lived

  • upper UTIs are usually short lived

  • upper UTIs often require systemic administration of drugs

  • antibiotics must be administred intramuscularly

Explanation

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