infection conditions Flashcards
1
Q
- how does cellulitis present?
- what is the causative organism of cellulitis?
- what is the treatment of cellulitis?
A
- red + swollen areas of skin
- staph aureus or strep pyogenes
- flucloxacillin - beta lactam so a cell wall synthesis inhibitor
2
Q
- how does tonsilitis present?
- what is the causative organism of tonsilitis?
- what is the treatment of tonsilitis?
A
- inflammation of tonsils
- strep pyogenes
- penicillin V
3
Q
- how does sepsis present?
- what is the causative organism of sepsis?
- what is the treatment of sepsis?
A
- overwhelming organ failure
- nisseria meningitidis
- ceftriaxone - beta lactam so cell wall synthesis inhibitor
4
Q
- how does UTI present?
- what are risk factors for UTIs?
- what is the causative organism of UTI?
- what is the treatment of UTI?
A
- pain when peeing + needing to pee more frequently
- female, dysuria, increased urinary frequency
- E.Coli
- trimethoprim - folic acid synthesis inhibitor
5
Q
- how does UTI 2 present?
- what is the causative organism of UTI 2?
- what is the treatment of UTI 2?
A
- vaginal thrush, yeast overgrowth, white discharge
- candida albicans
- topical: nystatin or clotrimazole, IV fluconazole (severe) or systemic: amphotericin B
6
Q
- how does shingles present?
- what is the causative organism of shingles?
- what is the treatment of shingles?
A
- red rash fixed to one dermatome
- varicella zoster reactivation which is usually dormant in basal ganglia of cutaneous neurons
- acyclovir
7
Q
- who is prone to a skin abscess?
- what is the causative organism of skin abscess?
- what is the treatment of skin abscess?
A
- minor scratches in diabetics, immunocompromised host
- staph aureus
- if MRSA then vancomycin otherwise flucloxacillin
8
Q
- how does peritonitis present?
- what is the causative organism of peritonitis?
- what is the treatment of peritonitis?
A
- large bowel adenocarcinomas, lower abdominal pain which becomes generalised, hot and sweaty, air in abdominal cavity
- E.Coli
- trimethoprim - inhibits follic acid synthesis
9
Q
- how does pneumonia present?
- what is the causative organism of pneumonia?
- what is the treatment of pneumonia by strep pneumoniae?
- what is the treatment of pneumonia by haemophilius influenza?
A
- pulmonary oedema, consolidation in lungs
- strep pneumoniae or haemophilius influenza
- mild = amoxicillin, moderate = amoxicillin and doxycycline, sever = doxycycline + co-amoxiclav (IV) – doxycycline only given if penicllin allergy
- co-amoxiclav + penicllin
10
Q
- what is the causative organism of profuse diarrhoea?
- what is the treatment of profuse diarrhoea?
A
- C.difficile
- mild = metronidazole - inhibits nucleic acid synthesis, severe = vancomycin
11
Q
- how does aortic valve stenosis/endocarditis present?
- what is the causative organism of aortic valve stenosis and endocarditis?
- what is the treatment of aortic valve stenosis / endocarditis infection?
A
- crescendo-decrescendo murmur, poor state of teeth
- viridans streptococci
- IV penicillin, gentamicin
12
Q
- what is the causative organism of central line or prosthesis infection?
- what is the treatment of central line infection?
A
- staph epidermidis
- remove prosthesis or central line, if in blood flucloxacillin
13
Q
- how can you identify what is causing vomitting and diarrhoea?
- what is the causative organism of vomitting and diarrhoea?
- what is the treatment of vomitting and diarrhoea?
A
- ELISA, PCR, stool sample
- norovirus
- no treatment, antipyretics, IV fluids
14
Q
- how does pharyngitis present?
- what is the causative organism of pharyngitis?
- what is the treatment of pharyngitis caused by EBV?
- what is the treatment of pharyngitis caused by adenovirus?
- what is the treatment of pharyngitis caused by strep pyogenes?
A
- red roof of mouth
- EBV, adenovirus, strep pyogenes
- supportive treatment
- supportive treatment
- penicillin V or flucloxacillin
15
Q
- how does TB present?
- what is the causative organism of TB?
- what is the treatment of TB?
A
- cloudy lungs MRI
- mycobacterium tuberculosis
- 2 antibiotics (isoniazid and rifampicin) for 6 months, and 2 additional antibiotics (pyrazinamide and ethambutol) for first 2 months / 6 months