Note: this post is not finalized yet, can have errors.
DOC = drug of choice.
Most common congenital heart disease is
VSD – Ventricular Septal Defect
Most common cyanotic heart disease is
TTF – Tetralogy of fallot
Most common cardiac abnormality in premature child birth is
Patent ductus arteriosus. DOC: indomethacin (or ibuprofen)
Most common cause of sub acute bacterial endocarditis
Streptococcus Viridans. DOC: penicillin or ceftriaxone
Most common cause of acute endocarditis (especially in i/v drug abusers)
Staphylococcus Aureus. DOC: vancomycin and ceftriaxone (until causative organism is identified)
Most common lobe involved in prostate cancer
Posterior lobe of prostate
Most common carcinoma of oropharynx
Squamous cell carcinoma
Most common site of entrapment of inhaled foreign body
Right main bronchus
Most common cause of pneumonia in HIV patients
Pneumocystis Carinii
Most common cause of meningitis in neonates (up to 28 days after birth)
Group B Streptococcus (Streptococcus agalactiae). Drug of choice: Penicillin G.
Most common cause of meningitis till end of teenage (1 months to 20 years) is
Meningiococcal (Neisseria meningitidis)
Most common cause of meningitis in adults (above 20)
Streptococcus pneumonia. Drug of choice: Penicillin. However selected third-generation cephalosporins (ie, cefotaxime and ceftriaxone) are the beta-lactams in emperic treatment too.
Most common hospital acquired meningitis
coagulase-negative staphylococci, Acinetobacter species, and Staphylococcus aureus (needs citation – not verified)
Most common cause of meningitis in HIV patients
Cryptococcus Neoformans
Most common cause of pelvic inflammatory disease
Chlamydia
Most common cause of Uterine tube abscess
Gonorrhoea