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NBME#1 block 2 Q1-----------Q50 - maryam2009
#21
Q8.D
membranous glomerulonephrities is caused by drugs like Penicillamine,Gold ,NSAID
also caused by infections,SLE
most common cause of adult nephrotic syndrome
EM..spike and dome IF..granular LMdiffuse capillary and GBM
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#22
GBM thickening*

Q9.D
IgG crosses the placenta
most abundat ,fixes complement,opsonizes bacteria,neutralizes bacterial toxins and viruses
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#23
10 A

Epstein Virus

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#24
11 A

cadiac temponade ...All the signs and symptoms
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#25
12 D

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#26
Hi moemoe,please post the answers with a brief explanation,Thank you
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#27
14. C.

picture shows keratin .. giving the symptoms "scaly lesion on face" makes SqCC is the most likely. Sunscreen would have presented such a complication. Pre cancerous; actinic keratosis
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#28
Q10.A

When EBV infects B-lymphocytes in vitro, lymphoblastoid cell lines eventually emerge that are capable of indefinite growth. The growth transformation of these cell lines is the consequence of viral protein expression.

Q11.A

Cardiac tamponade, also known as pericardial tamponade, is an emergency condition in which fluid accumulates in the pericardium (the sac in which the heart is enclosed). If the fluid significantly elevates the pressure on the heart it will prevent the heart's ventricles from filling properly. This in turn leads to a low stroke volume. The end result is ineffective pumping of blood, shock, and often death.

Symptoms of classical cardiac tamponade include three signs, known as Beck's triad. Hypotension occurs because of decreased stroke volume, jugular-venous distension due to impaired venous return to the heart, and muffled heart sounds due to fluid inside the pericardium.[9]

Other signs of tamponade include pulsus paradoxus (a drop of at least 10mmHg in arterial blood pressure on inspiration),and ST segment changes on the electrocardiogram, which may also show low voltage QRS complexes,as well as general signs & symptoms of shock (such as tachycardia, breathlessness and decreasing level of consciousness).

Wikipedia



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#29
15.D


Kaplan . IL-1 secreted by monocytes,macrophages,B-cells,dendritic cells,endithelial cells
Target cell/tissue.
1.TH cells.....costimulate activation
2.B cells ....promotes maturation and clonal expansion
3.NK... enhances activity
4.Macrophages and neutrophils...chemotactically attract
5. Hypothalamus....FEVER
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#30
Q16.H

http://www.google.com/imgres?imgurl=http...96&bih=483
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