Infec Flashcards
What bacteria commonly cause bacterial conjunctivitis?
Staphylococcus aureus
Streptococcus pneumoniae
Haemophilus influenzae
1st line for bacterial conjunctivitis?
Chloramphenicol
What is chloramphenicol contraindicated in?
Porphyria
What antibiotic can cause cholestatic jaundice
Flucloxacillin
What class of antibiotics are nephrotoxic and ototoxic
Aminoglycosides
What common side effect do all antibiotics cause
Diarrhoea
What is the normal dose of Piperacillin with Tazosin and the pseudomonas cover dose
4.5g q8h
4.5g QDS
Which antibiotics need TDM
Gentamicin, Vancomycin, Teicoplanin, Amikacin
H. Pylori eradication
7 day course
Amoxicillin 1g BD + Clarithromycin 500mg BD + Omeprazole 40mg OD
Penicillin allergic
Clarithromycin + Metronidazole 400mg TDS + PPI
What is co-administered with Isoniazid and why
Pyridoxine to reduce peripheral neuropathy effects
Which antimalarial if a patient has rheumatoid arthritis
Chloroquine
Which Abx can cause fatal arrhythmias with Amiodarone and how
Clarithromycin, Erythromycin CYP3A4 inhibitors
Ciprofloxacin can prolong QT which would warrant monitoring
How does renal function affect Nitrofurantoin
CI <45mL/min
Wont work as it can’t get through kidney into urine
When are prophylactic antibiotics indicated
2 infections within 6 months
Risks of long term antibiotic prophylaxis
Liver
Pulmonary fibrosis
Peripheral neuropathy