Antibiotics in cardio-respiratory infections Flashcards Preview

Year 3 - CR > Antibiotics in cardio-respiratory infections > Flashcards

Flashcards in Antibiotics in cardio-respiratory infections Deck (105)
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1

Name some upper respriatory tract symptoms

- sinustitis
- ottis media
- rhinitis
- tonillitis
- pharyngitis

2

What is the common microogranisms that is in the upper respriatory tract

1. normal flora such as viridans streptococci
2. temporary colonisers such as staph aureus and candida
3. pathogens

3

Name a organisms in the normal flora of the upper respiratory tract

viridans streptococci

4

Name some temporary colonisers of the upper respiratory tract

staph aureus and candida

5

Name some common bacteria in the URTI

= Strep pyogenes = group A
= strep pneumoniae
= haemophilus influenzae

6

Name 7 common URTI viruses

1. rhinovirus
2. influenza/parainfluenza
3. cornavirus
4. adenovrius
5. RSV = respiratory syncytial virus
6. Coxsackie
7. enterovirus

7

what are uncommon causes of URTI

- corynebacterium diphtheriae
- nisseria menigitidis

8

What are the symptoms of influenza

- fever
- coryza
- systemic symptoms - headache, malaise, myalgia, arthralgia, and GI symptoms

9

What defines an influenza as complicated

Requires hospital admission

and/or

- pneumonia/hypoxaemia
- CNS - menigitis
- Exacerbation of co-morbdity

10

How do you treat complicated influenza

if the perosn is not severely immunosupressed
- 1st line is = oseltamivir, PO/NG
- 2nd line = zanamivir iNH, NEB or IV

11

How do you treat uncomplciated influenza

If they are previously healthy
- No treatment
or
- oseltamivir PO if physician feels patietn is a serious risk of developing complciations

If they are in an at risk group
- Are they severely immunosupressed
If no to immunosupressed
- oseltamivir PO within 48 hours of onset or later at clinical discretion

12

How do you prevent influenza

- Vaccinations of patients

13

How do you investigate influenza

- Primary care - not needed
- secondary care - nasopharygneal swab for flu PCR

14

in influenza you should not

- confirm the infection before treating

15

What is the treatment for influenza

- within 48hr of start of symptoms
- oseltamivir 75mg bd oral/NG x 5 days

16

What bacteria causes pharyngitis

- Group A, B, C streptococci
- Mycoplasma pneumoniae
- Neisseria gonorrhoea
- Corynebacterium diptheriae

17

What is the most common bacteria that causes pharyngitis

Group A streptococci

18

What virus can cause a pharyngitis

- 7 common URTI viruses
- EBV
- CMV
- HSV
- Measles, HIV etc

19

Is bacteria or virus most common cause of pharyngitis

Virus

20

What are the symptoms of scarlet fever

- sore throat, fever, felt ill
- tonsillar exudate
- tender cervical nodes

21

How do you treat scarlet fever

- Penicillin V for 10 days

22

What criteria is used to help GPs if patients benefit from antibitoics for pharyngitis

Centor criteria

23

How do you work out the centor criteria

One point for
1. tonsillar exudate
2. tender cervical lymph noes
3. absence of cough
4. fever

if 1 or 2 points there is a 20% chance of Group A Strep - no anitbotics is given
if 3 or 4 point there is a 50% chance of Group A Strep - antibitoics are given

24

How do you treat Group A Strep

- all are penicillin senstiive
- majority erythromycin senstiive - for penicillin allergic people

- penicillin V 500mg QDS or 1g BD for 5-10 days OR clarithromycin 500mg BD for 5 days

25

What are the complications for group A strep

- rheumatic fever
- glomerulonephritis

26

What are the symptoms of EBV

- sore throat, fever, felt ill
- tonsillar exudate
- tender cervical nodes

27

How do you treat EBV

penicillin V (or clarithromycin)

28

If you give amoxicillin to an EBV patient what can happen

amoxicillin frequently causes a rash in patients with EBV

29

DO NOT GIVE AMOXICILLIN FOR

SORE THROAT

30

What causes otitis media virus or bacteria more?

Virus