Lets discuss questions of NBDE 1

[d dimps]

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1). .Which angle does a P Wave makes on ECG?
a). .45 degree
b). .180 degree
c). .0 degree
d). .-45 degree
e). .-180 degree.

2). .What is endogenous cholesterol? Most endogenous cholesterol is converted to?
a). .Glucose
b). .Cholic acid
c). .Steroid
d). .Oxaloacetete
e). .Ketone bodies

3). .Which of the following statement is correct regarding Glioblastoma multiforme?
a). .the tumor is most common before puberty
b). .it is classified as a type of meningioma
c). .it is most common type of Astrocytoma.
d). .Its prognosis is generally more favourablethan Grade 1 astrocytoma.
e). .It is derived from the epithelial lining of ventricles

4). .Which of the following pathological changes is irreversible?
a). .fatty changes in liver cells
b). .karyolysis in myocardial cells
c). .glycogen deposition in hepatocyte nuclei
d). .hydropic vacuolization of renal tubular epithelial cells.

5). .An example of Synergism is the effect of?
a). .insulin and glucagon on blood glucose
b). .estrogen and progesterone on uterine motility
c). .growth hormone and thyroxine on skeletal growth.
d). .Antidiuretic hormone and aldosterone on potassium excretion.

 

[Cindrella]

according to wikipedia endothelial cells are present but no idea abt nerve fibres

Vascularization
It is necessary for a network of blood vessels to be established as soon as possible to provide the growing tissue with nutrients, to take away cellular wastes, and transport new leukocytes to the area. Fibroblasts, the main cells that deposit granulation tissue, depend on oxygen to proliferate and lay down the new extracellular matrix.
In vascularisation, also called angiogenesis, endothelial cells quickly grow into the tissue from older, intact blood vessels. These branch out in a systematic way, forming anastomoses with other vessels.
v

thank you 👍

 

[anniemirza]

Hi everyone!!!
Finally Gave me exam!!!
I would like to thank all SDNers on this thread who helped me clear many doubts especially Teethie, pb2007, cindrella and everyone regular on this thread!
Now about the exam... First of all know the basics, and not only for just physio/biochem but also for ALL the subjects!! There are only just a few straightforward questions, rest of them test you for the knowledge of your basics! i feel that if your concepts are right you will be fine!! Before my exam i heard people say that the exam is much tougher than ASDA etc. and it used to make me scared But what i feel is that since everyone who does the ASDA starts of with the earlier papers and then gradually moves on to the next and then to the next so pretty much the same style is carried forward in the ASDA's later papers so this makes the ASDA exams look easier than the actual exam. But that is not the case... it is just that imho i found the style of questions a little different than the practice papers..
Coming back to the being clear about the basics.. i say this because i feel that amongst the answer choices you might be be able to exclude 2-3 options but then in the end there are almost always 2 such choices which might confuse you a bit.. so if you are not clear about some concepts you might find it hard to choose between the two....
As for the time, i felt the time was enough to think about the answer choices, complete the exam and then revise your answers a bit..(this does not mean you crawl like a snail through the questions 😛 .. its just that maintain your normal pace and DO NOT rush through)
I enjoyed being on this thread and will still stick around for a while..
All of you who have their exam coming up remember the most important thing is to REVISE!!
All the Best!👍

Congratulations bratdoc....finally the burden is off the head!!waitin 2 hear ur scores.....al the best to u🙂

 

[Cindrella]

which cell is MOST important in the control of metastases?

 

[pb2007]

which cell is MOST important in the control of metastases?

is it which cell or which route
hav a doubt
which is most common route of metastases hematogenous or lymphatic??

what is the order of tallest to smallest crown in mouth
my notes mention this
mandibular canine crown ...tallest
maxillary central ...2nd tallest
maxillary canine ...3rd tallest

am i rite people ?????

 

[Svetlana]

is it which cell or which route
hav a doubt
which is most common route of metastases hematogenous or lymphatic??

what is the order of tallest to smallest crown in mouth
my notes mention this
mandibular canine crown ...tallest
maxillary central ...2nd tallest
maxillary canine ...3rd tallest

am i rite people ?????

I'd say vice versa🙄

Cinderella:very difficult to answer such a Q without options!

 

[Cindrella]

This Q is from 1996 ASDA : but itwas not scored... so was hoping to know the correct answer incase... from patho section -->


Which of the following cells are thought to be MOST important in the control of metastases? (The NB considered this question to be defective -- it was not scored.)

1. B cells
2. Macrophages
3. Killer (K) cells
4. Cytotoxic T lymphocytes
5. Natural (K) cells

 

[anniemirza]

is it which cell or which route
hav a doubt
which is most common route of metastases hematogenous or lymphatic??

what is the order of tallest to smallest crown in mouth
my notes mention this
mandibular canine crown ...tallest
maxillary central ...2nd tallest
maxillary canine ...3rd tallest

am i rite people ?????

Most common route of metastasis is thru lymphatics.
Crown lengths-1st:maxi central
2nd:mandi canine

 

[Cindrella]

Hey annie ... since u seem to be refering first aid ( not the Q and A ) are you aware of any errors in pathology ???? I haven't really seen it thoroughly but i plan to do that now... so incase there are any corrections in NBDE first aid in pathology section wd be really nice if u cd post them upp here... 🙂 thanks

 

[anniemirza]

Hey annie ... since u seem to be refering first aid ( not the Q and A ) are you aware of any errors in pathology ???? I haven't really seen it thoroughly but i plan to do that now... so incase there are any corrections in NBDE first aid in pathology section wd be really nice if u cd post them upp here... 🙂 thanks

Hey cindrella I have 1st aid QnA only....dont have the theory book.

 

[teethie]

see below-----

is it which cell or which route
hav a doubt
which is most common route of metastases hematogenous or lymphatic??

what is the order of tallest to smallest crown in mouth
my notes mention this
mandibular canine crown ...tallest --------------i agree👍
maxillary central ...2nd tallest
maxillary canine ...3rd tallest

am i rite people ?????

 

[Svetlana]

I have a doubt.
Q from crack.
Which cells originate action potential in cochlear nerve
1.tectorial memb my ans(acc.to Kaplan)
2.organ of Corti ans

 

[wdent]

Have a doubt ...in Decks card number 96

Protein Kinase activity(as 2nd messnger ) for INSULIN and growth hormone ,,,why not by TYROSINE KINASE !!!!

Pls help :/

 

[anniemirza]

I have a doubt.
Q from crack.
Which cells originate action potential in cochlear nerve
1.tectorial memb my ans(acc.to Kaplan)
2.organ of Corti ans-correct

Action potential is initiated by the hair cells which are present in the organ of corti....these hair cells are overlapped by the tectorial menbrane.

 

[elmos]

Hi everyone!!!
Finally Gave me exam!!!
I would like to thank all SDNers on this thread who helped me clear many doubts especially Teethie, pb2007, cindrella and everyone regular on this thread!
Now about the exam... First of all know the basics, and not only for just physio/biochem but also for ALL the subjects!! There are only just a few straightforward questions, rest of them test you for the knowledge of your basics! i feel that if your concepts are right you will be fine!! Before my exam i heard people say that the exam is much tougher than ASDA etc. and it used to make me scared But what i feel is that since everyone who does the ASDA starts of with the earlier papers and then gradually moves on to the next and then to the next so pretty much the same style is carried forward in the ASDA's later papers so this makes the ASDA exams look easier than the actual exam. But that is not the case... it is just that imho i found the style of questions a little different than the practice papers..
Coming back to the being clear about the basics.. i say this because i feel that amongst the answer choices you might be be able to exclude 2-3 options but then in the end there are almost always 2 such choices which might confuse you a bit.. so if you are not clear about some concepts you might find it hard to choose between the two....
As for the time, i felt the time was enough to think about the answer choices, complete the exam and then revise your answers a bit..(this does not mean you crawl like a snail through the questions 😛 .. its just that maintain your normal pace and DO NOT rush through)
I enjoyed being on this thread and will still stick around for a while..
All of you who have their exam coming up remember the most important thing is to REVISE!!
All the Best!👍

the best wishes for you, but i'm pretty sure u'll get a high score 😀

 

[teethie]

hi,

I have a doubt.
Q from crack.
Which cells originate action potential in cochlear nerve
1.tectorial memb my ans(acc.to Kaplan)
2.organ of Corti ans-------------I go with this. here is thelink.
http://books.google.ca/books?id=4IN...l cochlear nerve from organ of corti&f=false

 

[teethie]

tyrosineknase is a type of protein kinase.
did i answer your doubt? or no

Have a doubt ...in Decks card number 96

Protein Kinase activity(as 2nd messnger ) for INSULIN and growth hormone ,,,why not by TYROSINE KINASE !!!!

Pls help :/

 

[wdent]

Yes teethie , Thanks !

Thanks 🙂

 

[Svetlana]

hi,

Thanks a lot!
Coz in Kaplan it's written in such a way that it's easy to confuse!!!

 

[elmos]

which cusp of the mandibular primary molar is longest and sharpest?
MB
or ML

 

[anniemirza]

which cusp of the mandibular primary molar is longest and sharpest?
Mb
or ml

mesiobuccal

 

[Svetlana]

mesiobuccal

Are you sure about that?
Isn't it ML?

 

[Svetlana]

Does it makes difference if it 1st or 2nd primary mand.molar?
Way i was remembering it
MB-the largest
ML-the sharpest

 

[anniemirza]

Does it makes difference if it 1st or 2nd primary mand.molar?
Way i was remembering it
MB-the largest
ML-the sharpest

Largest-MB
Sharpest-ML

gosh y does it hv to be so complicated evrytime!

 

[teethie]

...

which cusp of the mandibular primary molar is longest and sharpest?
MB ---------- it is large only
or ML-----------------answer

 

[teethie]

what happen annie?

Largest-MB
Sharpest-ML

gosh y does it hv to be so complicated evrytime!

 

[anniemirza]

what happen annie?

Hehe nothing Teethie...its so hard for me to remember so many things...wid ma gold fish memory! ...Freaks me!

 

[teethie]

u still have time to memorise, be cool😎

Hehe nothing Teethie...its so hard for me to remember so many things...wid ma gold fish memory! ...Freaks me!

 

[anniemirza]

u still have time to memorise, be cool😎

Yea i guess can do little at a time....no hurry!😉

 

[elmos]

thks for all of you for the help.😀

 

[Cindrella]

Annie... don't worry .... 🙂 we are all in the same boat and u r at a safe end since your exam is a little further away 🙂

 

[Cindrella]

In my notes, for emphysema ... i have written

tachypnea
Hyperventilation --> causes increased redness
Less hypoxemia ( what does this mean ?? )
increased PCO2

are all these points true ?? less hypoxemia 😕 why did i write that ...

help please !!!

 

[Svetlana]

What is the first and last defense mechanism of the lungs???

 

[anniemirza]

In my notes, for emphysema ... i have written

tachypnea
Hyperventilation --> causes increased redness
Less hypoxemia ( what does this mean ?? )
increased PCO2

are all these points true ?? less hypoxemia 😕 why did i write that ...

help please !!!

Yea all the points are right....hypoxemia itself is decreased oxygen content in the blood.(so there is no "less" hypoxemia)The co2 levels go up.

 

[Cindrella]

thanks annie yeah i don't know where did i get that less hypoxemia from...

How would hyperventilation cause pink puffers ?

 

[bratdoc]

what is the net charge on glutamic acid at a ph of 1
+2
+1
0
-1
-2
bratdoc ,can you explain this ,how to tackle such ques.

Im kinda weak in chemistry but all i know is this...
at their respective Isoelectric pH
Glutamic acid and Aspartic acid--- negatively charged
Lysine, Histidine and Arginine ---- positively charged
Rest are neutral
There is some concept of whether the pH is greater or lower than the pKa of the amino acid, the carboxyl and amino group will be deprotonated or protonated and accordingly have a negative or positive charge.....

BUT SINCE pKa IS NOT GIVEN I do the same method that others also mentioned on this thread... go with the charge of glutamic acid... and if a question shows many AAs then add all of their charges... Dont really know why the pH is there when the pKa is not given .... but whatever questions i have come across were answered correctly by using this method so i never bothered about the pH detail!!!
But if of course anyone comes across a question in which a correct answer is not derived by this method then we may have to look into it!!!

 

[bratdoc]

Thanks anniemirza and elmos for your wishes and support in this forum!

 

[Svetlana]

Annie,don't be so upset!!!
I believe that we will never feel like"Ok,i know everything and im ready to give an exam"!!!
NEVER!!!
So everything is fine!
And being worry about it is just wasting of a time!
Take your time and study calmly!

 

[Svetlana]

thanks annie yeah i don't know where did i get that less hypoxemia from...

How would hyperventilation cause pink puffers ?

i believe it's coz high O2 and they have their lips pink
or maybe they are in trouble performing an expiration and therefore are puffers

yeeaa,need clarifying!

 

[bratdoc]

thanks annie yeah i don't know where did i get that less hypoxemia from...

How would hyperventilation cause pink puffers ?

i think just opposite of blue bloater coloring... since in blue bloaters the "blue" coloring is due to cyanosis, hypoxemia...
Therefor in emphysema there is hyperventilation which causes decreased CO2 hence the pinkish hue with comparatively more O2 than CO2... oh and another reason for the pinkness can also be the Extra effort the have to put in drawing every breath with the strenuous use of their muscle

and also u might have written "less" hypoxemia because in your notes you might have written about Chronic Bronchitis first followed by the topic of Emphysema and hence you wrote down "Less" hypoxemia (compared to Chronic bronchitis, which is known for its Hypoxemic feature)!!
Do lemme know if i am right!

 

[anniemirza]

Annie,don't be so upset!!!
I believe that we will never feel like"Ok,i know everything and im ready to give an exam"!!!
NEVER!!!
So everything is fine!
And being worry about it is just wasting of a time!
Take your time and study calmly!

Yea U r right svetlana....worrying is wastin time...all we have to do is study well n give our best shot!
Thankyou🙂🙂...neways i dun wanna go like dis on ma birthday😀

 

[Svetlana]

Am i right?
CHONDROCYTES
immature-acidophillic-pink staining(collagen more than GAGs)

mature-basophillic-blue staining(GAGs more than collagen)

What's the relationship between maturity and collagen/GAG conc.?

 

[bratdoc]

Annie,don't be so upset!!!
I believe that we will never feel like"Ok,i know everything and im ready to give an exam"!!!
NEVER!!!
So everything is fine!
And being worry about it is just wasting of a time!
Take your time and study calmly!

Agree!! COLD FEET just before exam + Power vested in us to reschedule = Increased nervousness and postponement of the exam!

 

[anniemirza]

Agree!! COLD FEET just before exam + Power vested in us to reschedule = Increased nervousness and postponement of the exam!

Haha absolutely rt!

 

[bratdoc]

Agree!

Thanks Bratdoc for feedback!
8 days more and will share my experience too!!!😉

Thank you too for your support Svetlana!

Your exam is also almost here! All the Best!! I am sure you will do exceptional! 👍 👍

 

[anniemirza]

Guys do we have to do all those underground clinical vignettes???they are kinda complicated🙁

 

[pb2007]

thanks bratdoc,that word ph 1 was bothering me ,anyways i will apply your formula
i remember bratdoc had put up this ques frm 2004 released ques no 363 which i think we didnt find a reasonable explanation ,so was reading usmle notes so came across this

in primary hyperthyroidism increased urinary calcium occurs coz when plasma calcium increases beyond the concentration the kidneys can reabsorb .

 

[pb2007]

Guys do we have to do all those underground clinical vignettes???they are kinda complicated🙁

are you talkin about vignettes from decks .

 

[anniemirza]

are you talkin about vignettes from decks .

Blackwell's underground clinical vignettes....dunno if they come with the decks.

 

[bratdoc]

thanks bratdoc,that word ph 1 was bothering me ,anyways i will apply your formula
i remember bratdoc had put up this ques frm 2004 released ques no 363 which i think we didnt find a reasonable explanation ,so was reading usmle notes so came across this

in primary hyperthyroidism increased urinary calcium occurs coz when plasma calcium increases beyond the concentration the kidneys can reabsorb .

Oh yeah!!! Thank you Pb2007!

 

[teethie]

this reaction is a balanced reaction.😉

Agree!! COLD FEET just before exam + Power vested in us to reschedule = Increased nervousness and postponement of the exam!