INFECTION Flashcards
Methotrexate, clari+ery?
Safe
BUT AMOXI L!
nitrofurantoin risk?
pulmonary fibrosis
METHOTREXATE+AMOXICILLIN?
TOXICITY!!!!
RECURRENT VAGINAL THRUSH DOSE?
moetronidazole
150MG every third day for 3 doses+150mg ONCE weekly for 6 months
DISULFIRAM, DRINK ALCOHOL?>
FULL BODY RASH!
SET INTERACTION?
SILDENAFIL
ERYTHROMYCIN
TADALAFIL
isotretinoin+vitamin A, cod liver?
avoid in pregnant!
septicaemia?
tazobacta+piperacillin
osteomyelitis treatment?
fluclo (6 weeks)
w/
fusidic acid/rifampicin (2 weeks)
TRI UTI DOSE?
Adult
200 mg twice daily for 3 days (7 days in males).
UPPER UTI?
Oral first line (upper UTI symptoms):
Cefalexin, ciprofloxacin, co-amoxiclav (if culture susceptible), or trimethoprim (if
CURB65 SCORE?
CONFUSIONt
UREA NITROGEN>7mmol/L
RAISED RESP. RATE>/= 30breaths/min
low bp systolic <90, dyastolic /=65 years
CURB65 SCORE?
CONFUSIONt
UREA NITROGEN>7mmol/L
RAISED RESP. RATE>/= 30breaths/min
low bp systolic <90, dyastolic /=65 years
CRB SCORES?
• low severity - CRB65 score 0 or CURB65 score 0 or 1 • moderate severity - CRB65 score 1 or 2 or CURB65 score 2 • high severity - CRB65 score 3 or 4 or CURB65 score 3 to 5
ABX WITHOUT FOOD?
FAT PA- flucloxacillin, ampicillin, tetracycline/oxytetracycline, phenoxy, azithromycin capsules - 1 hour before food or two hours after food
ABX WITHOUT FOOD?
FAT PA?
d
NITROFURANTOIN
Egfr less than?
45, don’t use
- A 29-year old patient prescribed isoniazid as part of a tuberculosis treatment regimen
LIVER TOXICITY!
- A 42-year old woman who has been prescribed Yasmin® who smokes two packets of cigarettes a day
thrombosis
- A 51-year-old patient who has bone metastases and has been prescribed 4 mg zoledronic acid as treatment.
HYPOCALCAEMIA, electrolyte disturbacen
but treats
tumour induced hypercalcaemia
- A 67-year-old patient who has recently upped her lansoprazole to 30 mg twice daily.
hyponatraemia
- A 82 year old man who presents to hospital with jaundice. His liver function tests show raised bilirubin and alkaline phosphatase.
CO-AMOX, HEPATIC IMPAIRMENT
- A 68 year old woman with newly diagnosed pulmonary fibrosis
G ( Nitrofurantoin, SPC: Chronic pulmonary reactions (including pulmonary fibrosis and diffuse interstitial pneumonitis) can develop insidiously, and may occur commonly in elderly patients. Close monitoring of the pulmonary conditions of patients receiving long-term therapy is warranted (especially in the elderly).
ABX WITHOUT FOOD? EMPTY STOMACH?
AMPICILLIN
CO-FLUAMPICIL
FLUCLOXACILLIN
PHENOXYMETHYLPENICILLIN
ABX WITH FOOD?
PIVMECILLINAM
ALWAYS SENSE CHECK ANSWERS, DOES IT MAKE SENSE? RATIONALISE AND ELIMINATE EACH OPTION, READ THE Q AGAIN
TIP:
IF A QUESTION HAS AN ANTI-EPILEPTIC, IDENTIFY THE INTERACTION- MACROLIDES/QUINOLONES,NSAIDs, etc
SEVERE CELLULITIS?
CO-AMOXICLAV
CLINDAMYCIN
IV CEFUROXIME
IV CEFTRIAXONE
CELLULITIS MANAGEMENT?
penicillin allergy?
near eyes or nose?
alternative?
FLUCLOXACILLIN
penicillin allergy? DOXYCYLINE/CLARITHROMYCIN/ERYTHROMYCIN
near eyes or nose? CO-AMOXICLAV
alternative? CLARITHROMYCIN W/ METRONIDAZOLE
Hydrocortisone+quinolones?
Higher risk of tendonitis, okay
WHAT TB MEDICATION CAUSES POOR EYE VISION?
ETHAMBUTOL, not isoniazid
ISONIAZID is peripheral neropathy- body nerves are damaged
MALOFF- ATOVAQUONE w/ PROGUANIL?
Max 12 weeks P med
SIDE-EFFECTS OF INSULIN?
WEIGHT GAIN
OEDEMA
LIPODYSTROPHY- body storing fat,
SKIN REACTIONS
NOT WEIGHT LOSS
(hypertrophy- lump of fat tissue under skin, repeated injection)
Cellulitis?
Flucloxacillin
Doxy/Clari/Ery
Co-amoxiclav (children, not pen allergy)
HUMAN/ANIMAL BITES- TREATMENT
1st LINE?
2nd LINE?
PROPHYLAXIS/TREATMENT?
1st LINE? CO-AMOXICLAV
2nd LINE? DOXYCYCLINE AND METRONIDAZOLE
PROPHYLAXIS/TREATMENT DAYS? 3/5 DAYS
Treatment when there’s presenting symptoms*
CELLULITIS- TREATMENT
INFECTION NEAR EYES/NOSE
1st LINE?
PENICILLIN ALLERGY?
1st LINE? Co-amoxiclav
PENICILLIN ALLERGY? Clarithromycin & Metronidazole
AMINOGLYCOSIDES DO NOT CAUSE C DIFF
SORE THROAT TREATMENT
1st line?
2nd line?
SORE THROAT TREATMENT
1st line? Phenoxymethylpenicillin
2nd line? Clarithromycin or Erythromycin (in pregnancy)
A Cefalexin B Ciprofloxacin C Clarithromycin D Co-amoxiclav E Vancomycin
normal
flucloxacillin
doxycycline/clarithromycin/erythromycin
severe
co-amoxiclav/clindamycin | iv cefuroxime/ceftriaxone
MRSA- add iv vancomycin/teicoplanin/linezolid
SO ANSWER CEFTRIAXONE?
TRIMETHOPRIM CAN ALSO CAUSE…?
BLOOD DYSCRASIA, HEAD TOP!
not hepatoxic silly
FLUCLOXACILLIN IS CAUTIONED IN..?
HEPATIC IMPAIRMENT!
DOXYCYCLINCE CAN BE?
HEPATOTOXIC, don’t forget that
can get DYSPHASIA AS WELL
WHAT DO WE NOT GIVE IN OTITIS MEDIA?
DOXYCYCLINE, don’t be fooled
Trimethoprim in pregnancy? Teratogenic, avoid completely!
meningitis order?
benzylpenicillin
cefotaxime/ceftriaxone (penicillin allergy)
chloramphenicol (immediate penicillin allergy)
NEPHROTOXIC DRUGS? DAMN-LAG
DIURETICS ACE ARB METFORMIN NSAIDS LITHIUM AMINOGLYCOSIDES GENTAMICIN
Clotrimazole spray?
Large hairy area
CANESTEN IN PREGNANCY?
With topical use:
Minimal absorption from skin; not known to be harmful.
With vaginal use:
Pregnant women need a longer duration of treatment, usually about 7 days, to clear the infection. Oral antifungal treatment should be avoided during pregnancy.
HYOSCINE BUTYLBROMIDE?
GASTRO, SICKNESS, BUSCOPAN
QT PROLONGATION DRUGS?
THE AMAZING SPIDERMAN Q
TCA amiodarone SSRIS anti antipsychotics malaria quinine/quinolone
INFECTIVE COPD?
For adults aged 18 years and over, the first-choice antibiotic for the management of an
infective exacerbation of COPD are amoxicillin, doxycycline or clarithromycin.
Doxycycline is prescribed at a dose of 200 mg on first day, then 100 mg once a day for
5‑day course in total.
OR
CO-AMOXICLAV
LEVOFLOXACIN
CO-TRIMOXAZOLE
MENINGITIS?
BENZYL
CEFOTAXIME (calm with minor penicillin alllergy)
CHLORAMPHENICOL
Signs of meningitis. 1st line is benzylpenicillin but unsuitable due to penicillin allergy.
Cefotaxime can be used as no history of immediate anaphylactic reaction to penicillins.
SESPSIS?
B - bloods cultures U - urinary output F - IV fluids adm A - antibiotics broad spec IV L - lactate levels O - O2 if hypoxia
YELLOW-GREEN DISHARGE?
TRICHO
VAGINAL DISCHARGE GUIDE
One week after his hospital admission, the patient develops diarrhoea. A stool sample confirms
the presence of Clostridium difficile infection. Doctors decide to stop the lansoprazole and review
the antibiotic for his infection.
Which ONE of this patient͛s medications listed below is MOST likely to require temporary
discontinuation in view of his Clostridium difficile infection?
IBUPROFEN NSAID, he’s sick!!
CLARI, ATYPICAL PATHOGENS!
Penicillin V PHENOXYMETHYLPENICLLIN?
empty stomach
space doses evenly
A 4–year-old girl, presents with sore throat, low-grade fever and tender lesions in the mouth and papulovesicular lesions of the distal limbs
HAND
FOOT
MOUTH DISEASE
WAT THIS?
hives
batches of red/skin-coloured welts? itching, painful swelling?
A 73-year-old man with a history of allergy to penicillin (anaphylaxis) and
azithromycin (anaphylaxis), who is feeling unwell. His respiratory rate is 19
breaths/minute and his blood pressure is 121/82. He has a history of cough for
1 week.. Single choice.
DOXYCYCLINE
daktarin sugar free minimum age?
4 months+
A 26-year-old woman has contact dermatitis on her wrist. The maximum
number of times per day that hydrocortisone cream should be used is
twice
antibiotic-associated colitis
loperamide capsules
DD
cutanoues
lipohyper…
Clindamycin also used in cellulitis btw, but severe? Hm
WARFARIN-RIVAROXABAN, when INR?
<1.5, no need monitoring, safe
DOXYCYCLINE
HEADACHE VISUAL BENIGN REPORT
H PYLORI
MALARIA PROPHYLAXIS
vegan deficiency,?
b12?
METRO+OMEP H PYLORI?
USE 400MG TDS, OTHERWISE 400MG BD
AMOX+OMEP H PYLORI?
USE 500MG BD, otherwise 1000MG BD AS PER
IMPORTANCE OF STEWARDSHIP?
Prevents antibiotic resistance
Less unnecessary treatment, more caution
Higher risk of resistance w/ broad-spectrum antibiotics
ANTIMICROBIAL- NICE GUIDANCE
DO NOT START WITHOUT CLINICAL EVIDENCE
OBTAIN CULTURES-:
NARROWING OF BROAD SPECTRUM
CHANGE THERAPY TO EFFECTIVELY TREAT RESISTANT PATHOGENS
STOP ABs when CULTURES SUGGEST INFECTION IS UNLIKELY
AVOID BROAD-SPECTRUM ANTIBIOTICS, e.g. (risk
co-amoxiclav
quinolones (cipro, levo)
cephalosporins (cefaclor, ceftriaxone)
AVOID WIDESPREAD USE OF TOPICAL ANTIBIOTICS (e.g. fusidic acid is systemic, use that!)
HUMAN/ANIMAL BITES- TREATMENT
1st LINE?
2nd LINE?
PROPHYLAXIS/TREATMENT?
1st LINE? CO-AMOXICLAV
2nd LINE? DOXYCYCLINE AND METRONIDAZOLE
PROPHYLAXIS/TREATMENT DAYS? 3/5 DAYS
Treatment when there’s presenting symptoms*
TICK BITES (LYME DISEASE)- TREATMENT
1st LINE?
2nd LINE?
No. of days?
1st LINE? Doxycycline 100mg BD
2nd LINE? Amoxicillin 1000mg TDS
No. of days? 21 days
DIABETIC FOOT INFECTION- TREATMENT
MILD (<2cm)
1st LINE?
If penicillin allergy..?
1st LINE? Flucloxacillin
If penicillin allergy..? Clarithromycin/Erythromycin/Doxycycline
DIABETIC FOOT INFECTION- TREATMENT
MODERATE/SEVERE (abscess, osteomyelitis)
1st LINE?
2nd LINE?
1st LINE? FLUCLOXACILLIN or CO-AMOXICLAV with/without GENTAMICIN
2nd LINE? (Penicillin allergy) CO-TRIMOXAZOLE with/without GENTAMICIN
CELLULITIS- TREATMENT
FIRST LINE?
PENICILLIN ALLERGY?
FIRST LINE? Flucloxacillin
PENICILLIN ALLERGY?
Clarithromycin OR
Erythromycin (in pregnancy)
Doxycycline
CELLULITIS- TREATMENT
INFECTION NEAR EYES/NOSE
1st LINE?
PENICILLIN ALLERGY?
1st LINE? Co-amoxiclav
PENICILLIN ALLERGY? Clarithromycin & Metronidazole
COMMUNITY ACQUIRED PNEUMONIA-
THREE TYPES?
LOW SEVERITY
MODERATE SEVERITY
HIGH SEVERITY
COMMUNITY ACQUIRED PNEUMONIA
LOW SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Amoxicillin
2nd LINE? Doxycycline OR Clarithromycin OR Erythromycin (in pregnancy)
COMMUNITY ACQUIRED PNEUMONIA
MODERATE SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Amoxicillin w/ Clarithromycin OR Erythromycin in pregnancy
2nd LINE? Doxycycline OR Clarithromycin
COMMUNITY ACQUIRED PNEUMONIA
HIGH SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Co-amoxiclav w/ Clarithromycin (OR Erythromycin in pregnancy)
2nd LINE? Levofloxacin
DIARRHOEA TREATMENT
CLOSTRIDIUM DIFFICILE
1st LINE?
2nd LINE?
LIFE-THREATENING?
No. of days?
1st LINE? ORAL! Vancomycin
2nd LINE? Fidaxomicin
LIFE-THREATENING? Oral Vancomycin+IV metronidazole
No. of days? 10 days
DIARRHOEA
TRAVELLER’S DIARRHOEA
STANDBY?
PROPHYLAXIS/TREATMENT?
STANDBY? Azithromycin
PROPHYLAXIS/TREATMENT? Bismuth Subsalicylate
EAR INFECTIONS
OTITIS MEDIA (inner, need systemic)
1st LINE?
2nd LINE? (worsened symptoms after 2-3 days treatment)
Penicillin allergy?
Can resolve itself if it’s not bad!
so standard paracetamol, ibu, first initially, 3days-1week
1st LINE? Amoxicillin
2nd LINE? Co-amoxiclav
Penicillin allergy? Clarithromycin (Erythromycin in pregnancy)
EAR INFECTIONS
OTITIS EXTERNA
1st LINE?
2nd LINE?
SYSTEMIC TREATMENT NEEDED?
Pseudomonas?
1st LINE? Topical Acetic Acid 2%
2nd LINE? Topical Neomycin Sulphate w/ Corticosteroid
SYSTEMIC TREATMENT NEEDED? Flucloxacillin (clari/azy/ery back up)
Pseudomonas? Cipro/aminogly
Note: prolonged use of topical, can affect flora in canal, risk of fungal infection
HELICOBACTER PYLORI
TRIPLE THERAPY?
PPI?
+
2 of the following..?
PPI? Omeprazole, Lansoprazole, etc (30mg BD) \+ 2 of the following..? Amoxicillin 1000mg BD OR Metronidazole 400mg BD OR Clarithromycin 500mg BD
tetracycline also used, blah blah, 7 days