Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bacteriology > Bacterio2 > Flashcards

Bacterio2 Flashcards

1
Q

Which bacteria is called strep B?

A

Strep agalactia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Is strep agalactiae alpha hemolytic or beta hemolytic?

A

Beta hemolytic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

T or F

Strep agalactiae is prt of normal flora in women

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the main consequence of infection with strep B for a pregnant woman?

A

Premature labor(amniotic membrane early rapture)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

List the steps of this infection

A

1- present as Nf in the vagina of the mother(commensal state)(the mother is a carrier)
2- becomes virulent in uterus
3- invasion of the umbilical cord
4- affecting the lungs , heart and brain (high amount) of the baby

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

T or F

The strep B found in the vaginal area acts as staph aureus where both can become virulent at anytime

A

False

In strep B there is a special case that led to this infection which is pregnancy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

T or F

Strep B can cause abortion

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

T or F

If the baby was born alive this may be an early onset disease

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

T or F
Strep B can’t cause septicemia, but it causes cyanosis at birth like any other other case of a new born that has a clinical issue

A

False

Strep can cause septicemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

T or F

Only in the case of infection(strep B) during pregnancy the baby could be lethargic (floppy)

A

False

The baby could be infected after birth directly (first 24 hrs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

T or F

Late onset disease after strep B infection is caused by direct contact that happened after labor

A 
False
During labor (not transplacentally)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

T or F
Late onset diseases have a higher mortality rate than early onset diseases, because they are caused by direct contact and can cause septicemia

A

False

Late onset diseases have lower mortality rate ( but still high) and can’t cause septicemia (only bacterimia)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Strep agalatiae is a bimodal bacteria. Define bimodality.

A

Very Young people and very old people are susceptible to diseases (causes diseases in extreme ages) , the germ takes advantage of immunosuppressed people.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How do they screen for GBS ( group B strep)

A

Taking a swab from vagina or rectum or both (can cause contamination) at 8th month or preg (3rd trimester)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How to treat GBS + women?

A

Prophylactic IV ampicillin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

T or F

strep pneumoniae infection is not a cause of CAP (community acquired pneumoniae)

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

T or F

Strep pneumoniae is part of the normal flora before it’s tranformation

A

True

Before transformation and having a capsule(virulence factor) (FG exp)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

T or F

Uncontrolled spreading of strep pneumo is caused by trasmission from carrier symptomatic to a non carrier

A

Flase

Carrier asymptomatic

19
Q

How many serotypes of strep pneu we have that infect adults?

A

8

20
Q

T or F

50% of humans are carriers of strep pneu at some stage of their lives

A

False

75%

21
Q

T or F

The 8 strains target the children

A

False

We have another strains that target the children

22
Q

Shape of strep pneumoniae

A

Diplococci (lancet shape appearance)

23
Q

T or F
Strep pneumonia is characterized by secreting streptolysin O responsible for destroying RBC,inhibiting oxidative burst and neutrophil chemotaxis…

A

False

Pneumolysin O

24
Q

T or F

Presence of pneumolysin O is enough for resistance even if the capsule is absent

A

False

Strep pneu can undergo phagocytosis

25
Q

What do we mean by “loss of natural resistance”?

A

It’s like in case of covid where we treat them with antibiotics
That’s because the virus affected the barriers (cillia,normal flora) and this is when strep pneumonia can infect the host
This also happens in case of excessive alcohol (from vomitting, aspiration) or smoking(destruction of cillia)

26
Q

Lobar pneumonia is a feature of … infection

A

Pneumococci (strep pneumoniae)

27
Q

What are the complications associated with strep pneumo infection?

A 
Sinusitis
Otitis
Hemoptysis ( destruction of blood vessels)
Rusty sputum
Empyema (pus in the pleural cavity)
Bacteremia
Meningitis
Septic arthritis
28
Q

Name the test we use in the lab to detect the presence of pneumococci

A

Quellung ( swelling ) reaction test

29
Q

PPV23 is a vaccine for….

A

Pneumococci

30
Q

T or F
Unlike viral infection, bacterial infection in pneumonia causes destruction of parenchyma of the lungs ( alveoli) and dyspnea on the long term.

A

False

Reversed

31
Q

Bacterial pneumonia is treated nowayads with (narrow/broad) spectrum antibiotics

A

Broad because we dunno the bacteria causing it

32
Q

Case : a patient has undergone splenectomy 2 years ago , and now he is infected with strep pneumo. Are there any worries regarding this case ? If yes, why and how we can prevent such an infection?

A

Yes because the spleen is an important lymohatic organ against encapsulated bacteria (strep pneumonia).
We can give the patient vaccine (eg.PCV) after splenectomy directly to prevent such an infection.

33
Q

T or F

Sinusitis is always caused by viral infections

A

False

Bacterial infection

34
Q

In otitis media is an inflammation caused by pseudomonas

A

False

Caused by strep pneumoniae

35
Q

Strep viridans are part of NF of genital tract Tor F

A

False

NF in URT and GI

36
Q

T or F

Infection with viridans strep is associated with dental extraction

A

True

37
Q

Dental extraction after valve replacement can cause …. caused mainly by …..

A

Sub-acute endocarditis

Viridans strep infection

38
Q

Enterococcus is found …. culture

A

Urine

39
Q

Enterococcus usually grow on …. agar

A

Bile esculin

40
Q

Mode of transmission of enterococcus

A

By contamination and direct contact (catheters and instruments)

41
Q

Dessert🍮
Strep pneumo is a gram…bacteria that appears… on microscope, it causes pnemonia and while examining the X-ray we have swelling of the …tissue and …

A

Positive
Purple-blue
Local
Consolidation

42
Q

Early onset disease of strep B can be caused by a trasmission through——-
While late is most likely due to—–

A
  • transplacentally or in 24 hrs

- contact

43
Q

Late onset symptoms:

A

Meningitis
Osteomyelitis
Bacteremia

44
Q

Enterococcus is part of ——– NF, it causes —— in a nosocomial setting and it’s usually —— in a urine culture

A

GI
UTI
Polymicrobial

Bacteriology (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions