A 62-year-old man with diabetes presents with a foot ulcer and fever. X-ray shows bone destruction. Blood cultures grow Staphylococcus aureus. What is the recommended antibiotic duration?
A2 weeks
B4 weeks
C6 weeks
D8-12 weeks
E6 months
A 22-year-old student presents with fever, headache, and a petechial rash on her legs. CSF shows: protein 2.1 g/L, glucose 1.8 mmol/L (serum 5.2), WCC 850 (90% neutrophils). What is the most likely organism?
AStreptococcus pneumoniae
BNeisseria meningitidis
CHaemophilus influenzae
DListeria monocytogenes
EEnterovirus
A 37-year-old man presents with acute onset severe headache, fever, and neck stiffness. Lumbar puncture shows lymphocytic pleocytosis with normal glucose. HSV PCR is positive. What is the most appropriate treatment?
AIV aciclovir
BIV ceftriaxone
CIV ampicillin
DSupportive care only
EIV immunoglobulin
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