Q in micro

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Khurram

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Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

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Bacterial lipopolysacharide produces each of the follwing except

a. Lipia A
b. Teichoic acid
c. core polysaccahride
d. o specific side chain
e. keto-deoxy-octanoate
 
i'm getting mixed replies from people on this one so i'm throwing it in even if it's DA

Which of the following describes the contact between a max cent incisor and max lat incisor?

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.
d. Incisal embrasure is the largest of all the embrasures
 
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When viewed sagitally which of the following teeth have their long axes at an angle least perpendicular to the occulusal plane?

a. max incisiors
b. mand canines
c. mand premolars
d. max pre molars
e. mand first molars
 
Khurram said:
Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

Ans is c
 
Khurram said:
Which of the following describes the contact between a max cent incisor and max lat incisor?

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.
d. Incisal embrasure is the largest of all the embrasure

ans is c
 
Khurram said:
When viewed sagitally which of the following teeth have their long axes at an angle least perpendicular to the occulusal plane?

a. max incisiors
b. mand canines
c. mand premolars
d. max pre molars
e. mand first molar
ans can be a
 
1 a? cuz hemolysins( alpha, beta etc are imp. in its patho.)did they ask gen. staph or staph aureus
2 b techoic acid is a feature of gm positive, LPS is in gm negative.
LPS is composed of polysaccharide o side chains( remember O Antigen), core polysacc ( contains heptulose and KDO), Lipid A( contains fatty acids)
 
Khurram said:
Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin
hello brother this Q simple want to kwon which one have the concept of the difer B/w G+ y G- only hemolysis qualified be patient Kuram they Will call for the waiting list soom
 
ridge said:
Khurram said:
Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

Ans is c
just checked and agree with ridge cuz Protein A is the most virulence factor present in cell wall of staph aureus and is associated with coagglutination.
Other staphs are coagulase negative, do not produce protein A.
I also agree with ridge on both DA ques too.
 
I also thought the answer was coagulase production, because only staph aureus is coagulase positive...but i've heard from quite a few people that hemolysis is the answer, so im really confused...what's our final choice?!
 
Well the answer is definitely C....Coagulase.

Process of elimination....

A. hemolysis is important for identification of Strep
B. Pigment production has nothing to do with pathogenicity
D. Mannitol fermentation also isn't related to pathogenicity
E. Gelatin......they just threw that in to confuse you
 
Khurram said:
Bacterial lipopolysacharide produces each of the follwing except

a. Lipia A
b. Teichoic acid
c. core polysaccahride
d. o specific side chain
e. keto-deoxy-octanoate

except b. techoic acid
 
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most prominent mechanism of spread of varicella zoster in suceptible population is by which routes
1direct skin to skin contact
2respiratory
3parentrally

peptic ulcer's complication accounting for majority of deaths
1) bleeding
2) perforation
3)obstruction

well checking web sites VZ route seems direct skin to skin and respiratory

for peptic ulcer too says bleeding perforration and obst

closest what i assume is
1direct skin to skin for VZ
and bleeding for peptic ulcer

is this right answers ? help me out :confused:
thank you
 
mekha said:
most prominent mechanism of spread of varicella zoster in suceptible population is by which routes
1direct skin to skin contact
2respiratory
3parentrally

peptic ulcer's complication accounting for majority of deaths
1) bleeding
2) perforation
3)obstruction

well checking web sites VZ route seems direct skin to skin and respiratory

for peptic ulcer too says bleeding perforration and obst

closest what i assume is
1direct skin to skin for VZ
and bleeding for peptic ulcer

is this right answers ? help me out :confused:
thank you

Hi,
If you go through the decks, it says the most common complication is bleeding or hemorrhage.But in extreme cases,peptic ulcer
can lead to perforation ,thru n thru the wall of GI tract leading to acute peritonitis which in turn can lead to the death of the individual.
 
mekha said:
most prominent mechanism of spread of varicella zoster in suceptible population is by which routes
1direct skin to skin contact
2respiratory
3parentrally

peptic ulcer's complication accounting for majority of deaths
1) bleeding
2) perforation
3)obstruction

well checking web sites VZ route seems direct skin to skin and respiratory

for peptic ulcer too says bleeding perforration and obst

closest what i assume is
1direct skin to skin for VZ
and bleeding for peptic ulcer

is this right answers ? help me out :confused:
thank you

Hi,
The most common complication is bleeding but is it the same leading to majority of deaths ?
 
majority of deaths is caused by perforation,
bleeding is the most COMMON cause... not the most common cause of death...

varicella i would say is most EASILY spready through the respitory route, but skin to skin also sounds like a reasonable answer, get back to me and let me know what you come up with
 
Khurram said:
majority of deaths is caused by perforation,
bleeding is the most COMMON cause... not the most common cause of death...

varicella i would say is most EASILY spready through the respitory route, but skin to skin also sounds like a reasonable answer, get back to me and let me know what you come up with

death caused by perforation as it can lead to wide spread infection
VZ is virus most viruses spread thru air-common cold
correct me if wrong
 
g3k said:
Sonibun and Khurram,
I don't remember where I read it... but I clearly read that VZ is spread via respiratory droplets. In fact I think we got the same question in our micro paper this July.
Ok, here is a website I found:
http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.3628

thank you for the reply
i think you are right , the confusion here is varicella zoster is chicken pox and
herpes zoster as shingles some say it is together , so when the question is VZ alone it is respiratory i suppose when in herpes zoster it is skin contact i am not sure still
check this site it says vz is skin contact as well as respiratoryfor causative transmission
http://www.ndmch.com/publications/DiseaseFactSheets/Chickenpox.pdf#search=
 
1)warning sign of impending artheroscelrotic brain infarct
1berry aneurysm rupture
2transient ischemic attack
3angina pectoris

2)60 yr man had atrial fibrillation for two years
following myocardial infarct ,later he experienced right
flank and hematuria,paralysisof right side
of body and sharply demarcated ischemia in left foot
these signs and symptoms are most likely due to
1arterial emboli
2venous thrombi
3venous emboli

3 characteristic feature of negative stranded virus

a virion RNA complimentary to viral messenger rna
b genome is segmented always
c virion RNAis messenger for protient synthesis
d virion protient synthesised in eqimolar quantity
if anyone know the answer with explanation to these questions

help me out here

thank you
 
mekha said:
1)warning sign of impending artheroscelrotic brain infarct
1berry aneurysm rupture
2transient ischemic attack
3angina pectoris

2)60 yr man had atrial fibrillation for two years
following myocardial infarct ,later he experienced right
flank and hematuria,paralysisof right side
of body and sharply demarcated ischemia in left foot
these signs and symptoms are most likely due to
1arterial emboli
2venous thrombi
3venous emboli

3 characteristic feature of negative stranded virus

a virion RNA complimentary to viral messenger rna
b genome is segmented always
c virion RNAis messenger for protient synthesis
d virion protient synthesised in eqimolar quantity
if anyone know the answer with explanation to these questions

help me out here

thank you
1. is t.i.a.
2. is arterial emboli
3. dont know about three
 
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