JEFFREY BEZOS Flashcards

1
Q

down’s syndrome caused by nondisjunction occurs during what meiosis phase?

A

Meiosis 1

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2
Q

the ovarian artery, vein, lyphatics are located where?

A

in the suspensory ligameent of the ovaria (infundibulopelvic L.)

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3
Q

injury to the sacral spinal nerves could cause what?

A

distal colon stool retention, fecal inconitnence, weak sphingter

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4
Q

all mycoplasma species lack what?

A

peptidoglycan cell wall

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5
Q

testicular germ cell tumors which secrete____ can cause gynceomastia by what mechanims?

A

hcg

impaired testosterone production and increased aromitization of leydig cells

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6
Q

remember that exudates will have high

A

protein or LDH

not triglycerides (chylothorax transudates could tho)

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7
Q

the deficency in AIP is

as a result, ___ can be upregulated, espeically with CYP inducers, ETOH, or smoking, which causes the abdominal pain and other sx

Treatment is ___

A

Porphobilinogen deaminase

ALA synthetase

glucose or hemin which inhibit ALA synthetase atviy, reducing sx

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8
Q

what is the moa of Ziduvodine

A

NRTI

thymidine analogue lacking 3’ OH group causing chain termiantion

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9
Q

ehich TB drug causes optic neuropathy?

A

EThambutol

EFFECts the EYES

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10
Q

tap protines involved in

A

MCH1

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11
Q

positive s100 and HMB45 means

A

melanoma

s100 is on cells from NCC lineage (including melanocytes)

there are 100s of melanocytes in melanoma

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12
Q

persitent bronchial dilation aka ___ is asox with ___

A

bronchiectasis

kartagner syndrome (not pancreatic insuff which is CF)

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13
Q

overexpression of HER2 is more/less aggressive than ER+ or PR+?

A

More aggressive, tx with trazuuzumab

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14
Q

5a reductase inhibitors do what? (finasteride)

A

decrease conversion of T to DHT, therefore build up of T, less DHT and increase in estradiol

(estradiol increases because extra T gets converted to E)

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15
Q

arginine is a precursor to what?

A

NO

also CRT and UREA

(CUN)

BH4 is required cofactor to make NO

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16
Q

enterococcus can cause

A

endocarditis after GU rpocedures

UTIs

wound infections

grows in 6.5% NaCl and bile

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17
Q

licthinase (alpha toxin) in C. perfringens does what?

A

degrades lecithin, part of the phospholipid bilyaer leading to membrane damage, death and necrosis

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18
Q

large AV fistulas can cause what?

which cause what?

A

decreased SVR

increasd CO and increasd venous return

eventually heart can’t kepe up and heart faulure results

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19
Q

what is the major pathogenic contributor to a fib?

A

atrial remodeling

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20
Q

what are two major risk factors of prolonged EPO use?

A

HTN and thromboembolism

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21
Q

what is reactive thrombocytosis?

A

most common cause of elevated PLT in any age group

high levels of IL6

seen in chronic infection, burns, rheumatologic dz, hemolysis and iron def

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22
Q

glioblastoma multiforme

A
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23
Q

Tdt+, youth, mediastinal mass, lots of circulating lymhoblasts

24
Q

PSGN will have decreased C3 or C4?

A

C3 decreased

C3PO-PSGN

25
helpful chart on nephrotic syndrome
26
which cells form the atheroma, macrophages or smooth muscle?
smooth muscle
27
do you need a slit lamp to see keiser fiecher rigns?
yes aparantly
28
in chronic lung graft rejection, what will be seen on patholog?
bronchilitis oblitertans
29
what changes are seen post-orchiectomy?
initial drop in T so Leydig cells stimulate LH and testosterone normalizes Sperm count may still be low
30
prolonged QRS can be seen with
class IC antiarrythmics (flecainade)
31
what is the most commmon cause of elevated AFP?
dating errors, tf?
32
Left HF can lead to pulmonary edema causing what?
lungs are stiff and heavy and compliance decreases
33
thiazides cause accumulation of Ca where?
in the blood not the urine, hence why it helps avoid calcium stones becaue Ca in urine makes stones, CA in blood does not make stones
34
help
35
exclusively breast fed infants need what?
vit D babys need size D breasts
36
epinephrine effects
37
nephrotic syndrome is ___ state?
hypercoaguable loss of antithrombin III and other anticoagulant factors is responsible for the thrombic outcomes of neprhotic syndrome
38
what kills people from lightening, burns or arrhythmias
arrhytmias smart ass
39
h pylori where can lead to duodenal uclers
gastric antrum
40
what homrones use zinc fingers?
thyroid, steroid, ADEK
41
order of stabbs
42
painful tender firm uterus with vaginal bleeding and no hx of c/s
placental abrutpiont if hx of c/s and sketchy fetal HS probably uterine rupture
43
what is a common electorlyte aberation of TMP SMX?
hyperkalemia
44
HY CO poisoning
45
high altitude sickness
46
does demyleination decrease lenght (space) constant or temporal summation?dec
decreases length constant (in MS)
47
sorbitol is converted to
fructose
48
acellular pink material in alveoli
pulmonary edema
49
what cells line a glial scar?
astrocytes
50
what abortive drug acts as a partia progesterone agonist in pregnancty
mifeprostone
51
mesotheliomas stain positive for
cytokeratins and maybe calretinin
52
mtDNA dz effect family members differently becayse if
heteroplasmy
53
what is the round mass made of in pyloric stenosis?
smooth muscle proliferation
54
draw this
55