Microbiology - bugs Flashcards
Give the investigations for staphylococcus aureus (3)
- ) Gram +ve cocci
- ) Catalase +ve
- ) Coagulase +ve
What does staphylococcus aureus cause?
- ) Skin infections (impetigo/cellulitis)
- ) Osteomyelitis/septic arthritis
- ) Pneumonia
- ) Endocarditis
What do we give to treat staphylococcus aureus?
Flucloxacillin (vancomycin if MRSA)
Give the investigations for staphylococcus epidermis (3)
- ) Gram +ve cocci
- ) Catalase +ve
- ) Coagulase -ve
What does staphylococcus epidermidis cause?
Endocarditis (prosthetic valves)
What do we give to treat staphylococcus epidermis?
Flucloxacillin
Give the investigations for staphylococcus saphrophyticus (3)
- ) Gram +ve cocci
- ) Catalase +ve
- ) Coagulase -ve
What does staphylococcus saphrophyticus cause?
Honeymoon cystitis (UTI)
What do we give to treat staphylococcus saphrophyticus?
Trimethoprim
Give the investigations for streptococcus pneumoniae (4)
- ) Gram +ve cocci
- ) Catalase -ve
- ) Green BA (ALPHA)
- ) Optochin sensitive
What does streptococcus pneumoniae cause?
- ) Pneumonia (community)
- ) Meningitis
What do we give to treat streptococcus pneumoniae? (2)
Amoxicillin, cephotaxime
Give the investigations for streptococcus viridans (4)
- ) Gram +ve cocci
- ) Catalase -ve
- ) Green BA (ALPHA)
- ) Optochin resistant
What does streptococcus viridans cause?
Endocarditis (rheumatic patients in dental)
What do we give to treat streptococcus viridans? (2)
Benzylpenicillin and gentamycin
Give the investigations for streptococcus pyogenes (4)
- ) Gram +ve cocci
- ) Catalase -ve
- ) Clear BA (BETA)
- ) Lancefield type A
What does streptococcus pyogenes cause?
- ) Cellulitis, nec fac, impetigo, scarlet fever
- ) Strep throat
- ) Rheumatic fever, glomerulonephritis
What do we give to treat streptococcus pyogenes?
Amoxicillin
Give the investigations for listeria monocytogenes (2)
- ) Gram +ve bacilli
- ) Aerobic
What does listeria monocytogenes cause?
- ) Meningitis (immunocompromised)
- ) Sepsis (neonates)
- ) Abortion (pregnancy)
What do we give to treat listeria monocytogenes? (2)
Amoxicillin and gentamycin
Give the investigations for clostridium (2)
- ) Gram +ve bacilli
- ) Anaerobic
What does clostridium cause?
- ) Perfringes - gas gangrene
- ) Tetani - tetanus
- ) Difficile - pseudomem colitis
- ) Botulinum - botulism
Give the investigations for bacillus (2)
- ) Gram +ve bacilli
- ) Anaerobic
What does bacillus cause?
- ) Anthracis - antrax
- ) Cereus - food poisoning (rice)
Which gram positive bacteria is notifiable?
Bacillus
Give the investigations for escherichia coli (2)
- ) Gram -ve bacilli
- ) Lactose fermenter
What does escherichia coli cause?
- ) Diarrhoea
- ) UTI
- ) Pneumonia
- ) Meningitis
What do we give to treat escherichia coli? (3)
- ) Supportive
- ) Trimetrhoprime
- ) Amoxicillin
Give the investigations for klebsiella pneumoniae (2)
- ) Gram -ve bacteria
- ) Lactose fermenter
What does klebsiella pneumoniae cause?
- ) Pneumonia (hospital/immuno)
- ) UTI
What do we give to treat klebsiella pneumoniae?
Cefotaxime (cephalosporin)
Give the investigations for nesisseria (2)
- ) Gram -ve cocci
- ) Oxidase +ve
What does nesisseria cause?
- ) Meningitis (teens)
- ) Gonorrhoea
What do we give to treat nesisseria? (2)
- ) Benzylpenicillin
- ) Ciprofloxacin
Give the investigations for haemophilus influenzae (2)
- ) Gram -ve coccobacilli (parvobacteria)
- ) VX on chocolate agar
What does haemophilus influenzae cause?
- ) Meningitis (teens)
- ) Pneumonia
- ) Cellulitis
What do we give to treat haemophilus influenzae?
Cefotaxime
Give the investigations for legionella pneumophila (2)
- ) Gram -ve coccobacilli
- ) Urine antigen test
What does legionella pneumophila cause?
Pneumonia (water)
What do we give to treat legionella pneumophila? (2)
Amoxicillin and rifampicin
Give the investigations for pseudomonas auguensa (3)
- ) Gram -ve bacilli
- ) Non-lactose fermenter
- ) Oxidase +ve
What does pseudomonas auguensa cause?
- ) UTI (catheterised)
- ) Pneumonia (bronchiectasis/CF)
- ) Smelly sputum
What do we give to treat pseudomonas auguensa? (2)
Gentamycin and ceftazidime
Give the investigations for proteus mirabilis (2)
- ) Gram -ve bacilli
- ) Non-lactose fermenter
What does proteus mirabilis cause?
- ) UTI
- ) Kidney stones
What do we give to treat proteus mirabilis?
Trimethoprim
Give the investigations for campylobacter jejuni/coli (2)
- ) Parvobacteria, gram -ve coccobacilli
- ) Oxidase +ve
What does campylobacter jejuni/coli cause?
- ) Diarrhoea +/- dysentery
- ) Reactive arthritis
- ) Guillain Barre
What do we give to treat campylobacter jejuni/coli?
None/ciprofloxacin
Give the investigation for helicobacter pylori (1)
Oxidase +ve
What does helicobacter pylori cause?
- ) Chronic gastritis
- ) Peptic ulcers
What do we give to treat helicobacter pylori? (3)
Amoxicillin and clarythromycin and PPI
Give the investigations for salmonella (3)
- ) Gram -ve bacilli
- ) Non-lactose fermenter
- ) Oxidase -ve
What does salmonella cause?
Diarrhoea and abdominal pain
Give the investigations for shigella (3)
- ) Gram -ve bacilli
- ) Non lactose fermenter
- ) Oxidase -ve
What does shigella cause?
Dysentery
Give the investigations for mycobacterium tuberculosis (2)
- ) Acid fast bacilli (Ziehl-Neelsen stain)
- ) Culture - Lowenstein-Jenson slopes
What does mycobacterium tuberculosis cause?
TB
What do we give to treat mycobacterium tuberculosis? (4)
Rifampicin
Isoniazid
Pyrazinamide
Ethambutol
Which gram negative bacteria is notifiable?
Legionella pneumophila
Give the investigations for HIV (2)
- ) Retrovirus
- ) Western blotting
What does HIV cause?
AIDS
How do we define AIDS? (2)
CD4<200
AIDS defining illness
What do we give to treat HIV?
Antiretrovirals HAART
Give the investigation for herpes varicella zoster
ELISA - IgM antibody
What does herpes varicella zoster cause?
1 - cold sores
2 - genital ulcers and dysuria
What do we give to treat herpes varicella zoster?
Aciclovir
Give the investigation for EBV
Immunofluorescent anti-IgG
What does EBV cause?
Glandular fever
What do we give to treat EBV?
None (not PENICILLIN!)
What does EBV stand for?
Epstein-Barr virus
What does HPV cause?
Genital warts (cancer risk)
What do we do to treat HPV?
Surgery/cauterisation
What does HPV stand for?
Human papilloma virus
Give the investigation for cytomegalovirus
‘Owl eye’ inclusion bodies
What does cytomegalovirus cause?
- ) Glandular fever-like
- ) Pneumonitis/hepatitis/diarrhoea (immunocompromised)
What do we give to treat cytomegalovirus?
Nothing
Give the investigations for hepatitis B (2)
- ) DNA
- ) ELISA - HBsAg surface antigen
What does hepatitis B cause?
-) Fever, malaise, arthralgia ++, jaundice, pruritus
What do we give to treat hepatitis B?
Chronic - PEG interferon-alpha-2a
Give the investigation for hepatitis C
PCR - Hep C RNA
What does hepatitis C cause?
Mild, cirrhosis, cancer risk
What do we give to treat hepatitis C?
Chronic - PEG interferon-alpha-2a and ribavirin
Give the investigation for hepatitis A
ELISA - IgM antibody +ve
What does hepatitis A cause?
-) Fever, malaise, arthralgia, jaundice, rigor
What do we give to treat hepatitis A?
Supportive
Give the investigations for influenza A/B (2)
- ) RNA
- ) NAAT/complement fixation test
What does influenza A/B cause?
-) Fever, malaise, arthralgia
What do we give to treat influenza A/B? (2)
- ) Supportive
- ) Flu vaccine
Give the investigations for respiratory syncytial virus (2)
- ) RNA
- ) Monoclonal ab +ve
What does respiratory syncytial virus cause?
- ) Bronchiolitis (infants)
- ) Croup
Give the investigations for morbillivirus (2)
- ) Inclusion bodies
- ) IgM +ve
What does morbillivirus cause?
-) Measles (fever, conjunctivits, rash behind ears not palms)
What do we give to treat morbillivirus?
Supportive
Give the investigation for enterovirus
Culture CSF
What does enterovirus cause?
Meningitis (slow onset)
Give the investigation for rubivirus
Rubella-specific IgM +ve
What does rubivirus cause?
-) Rubella/German measles (fever, conjunctivitis (petechial rash), congenital malformation of baby
How can we prevent rubivirus?
MMR vaccination
What do we give for rubivirus?
Nothing
Give the investigation for paramyxovirus
Salivary IgM +ve
What does paramyxovirus cause?
Mumps (parotid swelling/fever/malaise/epididymo-orchitis)
What do we give to treat paramyxovirus?
Supportive
Give the investigation for parvovirus (B19)
ELISA - IgM +ve (acute)
What does parvovirus (B19) cause?
Slapped cheek
What do we give to treat parvovirus (B19)?
Supportive
Which 3 viruses are notifiable?
- ) Morbillivirus
- ) Rubivirus
- ) Paramyxovirus
Give the investigation for candida albicans
Sabourad agar
What does candida albicans cause?
- ) Thrust (oral, oesophageal, vaginal)
- ) Endocarditis
What do we give to treat candida albicans?
Amphotericin B
Give the investigation for pneumocystis jyrovecii pneumoniae
PCR detection
What does pneumocystis jyrovecii pneumoniae cause?
Pneumonia (HIV)
What do we give to treat pneumocystis jyrovecii pneumoniae?
Co-trimoxazole
Give the investigation for toxoplasmosis gondii
ELISA - IgM
What does toxoplasmosis gondii cause?
Encephalitis (AIDS)
What do we give to treat toxoplasmosis gondii? (2)
Pyrimethamine and sulphonamide
Give the investigation for plasmodium falciparum, p. vivid, p. ovale, p. malariae
Thick and thin blood smears stained with Giemsa stain
What do plasmodium falciparum, p. vivid, p. ovale, p. malariae cause?
Malaria (f - quptiden fever, v - 72hrly, m - 96hrly)
What do we give to treat plasmodium falciparum, p. vivid, p. ovale, p. malariae?
- ) Non F - chloroquine
- ) F = quinine sulphate and doxycycline
Give the investigation for giardia lamblia
Microscopy - trophozoites and cysts
What does giardia lamblia cause?
Diarrhoea (watery then steatorrhoea and nausea and abdominal pain)
What do we give to treat giardia lamblia?
Metronidazole
Give the investigation for trichomonas vaginalis
Papanicolaou smear
What does trichomonas vaginalis cause?
Vaginal discharge (yellow-green, itchy, dyspareunia)
What do we give to treat trichomonas vaginalis?
Metronidazole
Give the investigation for trypanosoma
Blood film - trypomastigotes
What does trypanosoma cause?
- ) Brucei - African sleeping sickness
- ) Cruzi - Chaga’s disease
Nice one - you got through microbiology!
:)