nd2 year help prt 1 Flashcards
What range do normal bowel habits fall under?
3 times/day - 3 times/week
What range do normal bowel habits fall under?
3 times/day - 3 times/week
what frequency of passing stool constitutes diarrhoea?`
more than 3 times per day
what frequency of passing stool constitutes constipation?
less than 3 times per week
What defines acute diarrhoea?
Diarrhoea lasting less than 2 weeks.
what defines chronic diarrhoea?
Diarrhoea lasting more than 2 weeks.
what is osmotic diarrhoea?
With osmotic diarrhoea, electrolyte transfer takes place but at a low rate. The majority of the fluid passed will be unabsorbed chyme with some fluid drawn osmotically from the cellular membrane. If you stop drinking the diarrhoea will stop
What is secretary diarrhoea?
With secretory diarrhoea a pathogen or other agent shuts down the bodies ability to absorb fluid while triggering the excess production of water in the small intestine.
Main anti-motility treatment?
Loperamide.Stimulate opioid receptors in the sphincter and slows gut motility.
What antibiotic family is used to treat campylobacter with?
Macroliides - claryth, eryth, azyth.
What do you treat campylobacter with?
Macroliides - claryth, eryth, azyth.
what frequency of passing stool constitutes diarrhoea?`
more than 3 times per day
what frequency of passing stool constitutes constipation?
less than 3 times per day
What defines acute diarrhoea?
Diarrhoea lasting less than 2 weeks.
what defines chronic diarrhoea?
Diarrhoea lasting more than 2 weeks.
what is osmotic diarrhoea?
With osmotic diarrhoea, electrolyte transfer takes place but at a low rate. The majority of the fluid passed will be unabsorbed chyme with some fluid drawn osmotically from the cellular membrane. If you stop drinking the diarrhoea will stop
What is secretary diarrhoea?
With secretory diarrhoea a pathogen or other agent shuts down the bodies ability to absorb fluid while triggering the excess production of water in the small intestine.
Main anti-motility treatment?
Loperamide.Stimulate opioid receptors in the sphincter and slows gut motility.
What are the reasons to query antibiotic use in diarrhoea in the uk?
Antibacterial drugs are generally unnecessary in simple gastro-enteritis because the complaint usually resolves quickly without them, and infective diarrhoeas in the UK often have a viral cause. Systemic bacterial infection
does, however, need appropriate systemic treatment.
What do you treat campylobacter with?
Macroliides - claryth, eryth, azyth.
What antibiotic is used to treat shigella and salmonella?
ciprofloxacin
What antibiotic is used to treat typhoid?
ceftriaxone (3rd generation cephalosporin).
What antibiotic is used to treat C. diff.
Metronidazol
If the diarrhoea is described as having rice water?
Cholera
What do Basophils do?
They are implicated in allergic reaction. they release histamine as a vasodilator which is important in inflamation and heparin to thin the blood. they are found in the blood stream.
If the diarrhoea is described as having fatty foul smelling stools?
Giardia lamblia
If the diarrhoea is described as having travelled to europe or south america for a conference?
travellers diarrhoea/ETEC Enterotoxic Escheria Coli
If the diarrhoea is described as being in an old person who has recently had antibiotic treatment?
C.diff
If the diarrhoea is described in a person who has eaten rice?
bacillus cereus
If the diarrhoea is described as being in chicken?
Campylobacter or salmonella. Salmonella is maximum of 2 days, campylobacter is 2-5 days.
when to use antibiotics in diarrhoea?
systemically unwell, elderly and immuno-suppressed.
Hypersensitivity types (ACID)
Type 1 - Allergic (bee sting, latex, penicillin), Type 2 - cytotoxic (myesthenia gravis), type3 - immuno-complex (Rheumatoid arthritis), type 4 - Delayed (contact dermatitis)
What is a Neutrophils?
First on the scene. Granulocyte making upto 75% of your white blood cells. It is also a proffessional phagocyte. they secret IL 10.
Waht do Eosinophil do?
Used in parasite infection. they also control mechanism associated with allergy.
What do Basophils do?
They are implicated in allergic reaction. they release histamine as a vasodilator and heparin to thin the blood. they are found in the blood stream.
What do Mast cells do?
mast cells live in all tissues. they have a similar role to basophils being implicated in allergic reaction and the release of Histamine.
What do Dendritic cells do?
Dendritic cells Phagocytose pathogens and the present the composite parts to the adaptive immune system (t cells and b cells).
what do Macrophages do?
they Phagocytose pathogens, and other biological debris.
Anti and pro infammation cytokine release.
What do Natural Killer cells do?
NK cells play a major role in the host-rejection of both tumours and virally infected cells. NK cells are cytotoxic; small granules in their cytoplasm contain special proteins such as perforin and proteases known as granzymes
what do B cell (memory) do?
memory cells remember the same pathogen for faster antibody production in future infections
what do B plasma cells do?
They produce a single kind of antibody but do it at an incredible rate.